./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem11_label40.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3a877d22 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/Problem11_label40.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 f8fd8a7f4bc5b8a783328ea3ccb02a1c89ebaa08f4ab2de173aa0152f6877b7b --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 09:36:44,594 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 09:36:44,597 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 09:36:44,647 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 09:36:44,648 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 09:36:44,651 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 09:36:44,652 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 09:36:44,658 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 09:36:44,659 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 09:36:44,663 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 09:36:44,664 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 09:36:44,665 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 09:36:44,665 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 09:36:44,667 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 09:36:44,669 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 09:36:44,672 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 09:36:44,674 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 09:36:44,674 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 09:36:44,677 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 09:36:44,682 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 09:36:44,683 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 09:36:44,684 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 09:36:44,685 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 09:36:44,686 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 09:36:44,691 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 09:36:44,691 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 09:36:44,692 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 09:36:44,693 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 09:36:44,693 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 09:36:44,694 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 09:36:44,694 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 09:36:44,695 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 09:36:44,696 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 09:36:44,697 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 09:36:44,698 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 09:36:44,698 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 09:36:44,699 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 09:36:44,699 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 09:36:44,699 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 09:36:44,700 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 09:36:44,700 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 09:36:44,702 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 09:36:44,731 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 09:36:44,732 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 09:36:44,732 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 09:36:44,732 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 09:36:44,733 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 09:36:44,733 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 09:36:44,734 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 09:36:44,734 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 09:36:44,734 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 09:36:44,734 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 09:36:44,735 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 09:36:44,735 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 09:36:44,735 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 09:36:44,736 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 09:36:44,736 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 09:36:44,736 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 09:36:44,736 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 09:36:44,736 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 09:36:44,736 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 09:36:44,737 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 09:36:44,737 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 09:36:44,737 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 09:36:44,737 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 09:36:44,737 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 09:36:44,737 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 09:36:44,738 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 09:36:44,738 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 09:36:44,739 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 09:36:44,739 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 09:36:44,739 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 09:36:44,739 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 09:36:44,740 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 09:36:44,740 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 09:36:44,741 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 09:36:44,741 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f8fd8a7f4bc5b8a783328ea3ccb02a1c89ebaa08f4ab2de173aa0152f6877b7b [2021-12-15 09:36:44,967 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 09:36:44,994 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 09:36:44,997 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 09:36:44,998 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 09:36:44,999 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 09:36:45,000 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem11_label40.c [2021-12-15 09:36:45,061 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b06de5712/edc6d06a96c74fc49f4736cbcf51ad20/FLAGfb56744d5 [2021-12-15 09:36:45,671 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 09:36:45,672 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem11_label40.c [2021-12-15 09:36:45,691 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b06de5712/edc6d06a96c74fc49f4736cbcf51ad20/FLAGfb56744d5 [2021-12-15 09:36:45,944 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b06de5712/edc6d06a96c74fc49f4736cbcf51ad20 [2021-12-15 09:36:45,947 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 09:36:45,948 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 09:36:45,951 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 09:36:45,951 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 09:36:45,954 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 09:36:45,955 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 09:36:45" (1/1) ... [2021-12-15 09:36:45,955 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e7f8393 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:36:45, skipping insertion in model container [2021-12-15 09:36:45,956 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 09:36:45" (1/1) ... [2021-12-15 09:36:45,961 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 09:36:46,010 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 09:36:46,185 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/Problem11_label40.c[6409,6422] [2021-12-15 09:36:46,426 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 09:36:46,434 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 09:36:46,469 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/Problem11_label40.c[6409,6422] [2021-12-15 09:36:46,615 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 09:36:46,628 INFO L208 MainTranslator]: Completed translation [2021-12-15 09:36:46,629 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:36:46 WrapperNode [2021-12-15 09:36:46,629 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 09:36:46,630 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 09:36:46,630 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 09:36:46,630 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 09:36:46,637 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:36:46" (1/1) ... [2021-12-15 09:36:46,672 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:36:46" (1/1) ... [2021-12-15 09:36:46,787 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 999 [2021-12-15 09:36:46,787 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 09:36:46,788 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 09:36:46,788 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 09:36:46,788 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 09:36:46,796 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:36:46" (1/1) ... [2021-12-15 09:36:46,796 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:36:46" (1/1) ... [2021-12-15 09:36:46,814 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:36:46" (1/1) ... [2021-12-15 09:36:46,815 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:36:46" (1/1) ... [2021-12-15 09:36:46,856 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:36:46" (1/1) ... [2021-12-15 09:36:46,871 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:36:46" (1/1) ... [2021-12-15 09:36:46,892 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:36:46" (1/1) ... [2021-12-15 09:36:46,909 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 09:36:46,910 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 09:36:46,911 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 09:36:46,911 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 09:36:46,912 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:36:46" (1/1) ... [2021-12-15 09:36:46,918 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 09:36:46,927 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 09:36:46,940 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 09:36:46,974 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 09:36:46,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 09:36:46,975 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 09:36:46,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 09:36:46,973 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 09:36:47,035 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 09:36:47,036 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 09:36:48,255 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 09:36:48,268 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 09:36:48,269 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-15 09:36:48,271 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 09:36:48 BoogieIcfgContainer [2021-12-15 09:36:48,272 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 09:36:48,273 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 09:36:48,273 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 09:36:48,276 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 09:36:48,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 09:36:45" (1/3) ... [2021-12-15 09:36:48,277 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46cfed15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 09:36:48, skipping insertion in model container [2021-12-15 09:36:48,277 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:36:46" (2/3) ... [2021-12-15 09:36:48,278 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46cfed15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 09:36:48, skipping insertion in model container [2021-12-15 09:36:48,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 09:36:48" (3/3) ... [2021-12-15 09:36:48,279 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem11_label40.c [2021-12-15 09:36:48,284 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 09:36:48,284 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 09:36:48,348 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 09:36:48,356 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 09:36:48,356 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 09:36:48,381 INFO L276 IsEmpty]: Start isEmpty. Operand has 283 states, 281 states have (on average 1.7153024911032029) internal successors, (482), 282 states have internal predecessors, (482), 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 09:36:48,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-12-15 09:36:48,392 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:36:48,393 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] [2021-12-15 09:36:48,394 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:36:48,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:36:48,399 INFO L85 PathProgramCache]: Analyzing trace with hash 626000386, now seen corresponding path program 1 times [2021-12-15 09:36:48,406 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:36:48,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145015663] [2021-12-15 09:36:48,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:36:48,408 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:36:48,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:36:48,667 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 09:36:48,668 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:36:48,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145015663] [2021-12-15 09:36:48,669 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145015663] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:36:48,669 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 09:36:48,669 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 09:36:48,671 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355223055] [2021-12-15 09:36:48,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:36:48,676 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 09:36:48,676 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:36:48,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 09:36:48,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:36:48,708 INFO L87 Difference]: Start difference. First operand has 283 states, 281 states have (on average 1.7153024911032029) internal successors, (482), 282 states have internal predecessors, (482), 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 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 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 09:36:49,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:36:49,712 INFO L93 Difference]: Finished difference Result 761 states and 1345 transitions. [2021-12-15 09:36:49,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 09:36:49,714 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 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 44 [2021-12-15 09:36:49,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:36:49,728 INFO L225 Difference]: With dead ends: 761 [2021-12-15 09:36:49,729 INFO L226 Difference]: Without dead ends: 413 [2021-12-15 09:36:49,737 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 09:36:49,740 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 184 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 596 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-15 09:36:49,742 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [184 Valid, 222 Invalid, 753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 596 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-15 09:36:49,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2021-12-15 09:36:49,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 413. [2021-12-15 09:36:49,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 412 states have (on average 1.453883495145631) internal successors, (599), 412 states have internal predecessors, (599), 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 09:36:49,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 599 transitions. [2021-12-15 09:36:49,793 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 599 transitions. Word has length 44 [2021-12-15 09:36:49,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:36:49,794 INFO L470 AbstractCegarLoop]: Abstraction has 413 states and 599 transitions. [2021-12-15 09:36:49,794 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 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 09:36:49,794 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 599 transitions. [2021-12-15 09:36:49,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-12-15 09:36:49,798 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:36:49,798 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:36:49,798 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 09:36:49,799 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:36:49,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:36:49,799 INFO L85 PathProgramCache]: Analyzing trace with hash 1200539258, now seen corresponding path program 1 times [2021-12-15 09:36:49,800 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:36:49,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942493942] [2021-12-15 09:36:49,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:36:49,800 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:36:49,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:36:49,895 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 09:36:49,896 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:36:49,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942493942] [2021-12-15 09:36:49,896 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942493942] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:36:49,896 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 09:36:49,897 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 09:36:49,897 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901473960] [2021-12-15 09:36:49,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:36:49,909 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 09:36:49,910 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:36:49,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 09:36:49,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:36:49,911 INFO L87 Difference]: Start difference. First operand 413 states and 599 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 2 states have internal predecessors, (112), 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 09:36:50,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:36:50,572 INFO L93 Difference]: Finished difference Result 1211 states and 1763 transitions. [2021-12-15 09:36:50,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 09:36:50,577 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 2 states have internal predecessors, (112), 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 112 [2021-12-15 09:36:50,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:36:50,581 INFO L225 Difference]: With dead ends: 1211 [2021-12-15 09:36:50,581 INFO L226 Difference]: Without dead ends: 800 [2021-12-15 09:36:50,583 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 09:36:50,584 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 144 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-15 09:36:50,585 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 118 Invalid, 671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 523 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-15 09:36:50,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2021-12-15 09:36:50,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 789. [2021-12-15 09:36:50,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 789 states, 788 states have (on average 1.3756345177664975) internal successors, (1084), 788 states have internal predecessors, (1084), 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 09:36:50,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 789 states and 1084 transitions. [2021-12-15 09:36:50,616 INFO L78 Accepts]: Start accepts. Automaton has 789 states and 1084 transitions. Word has length 112 [2021-12-15 09:36:50,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:36:50,617 INFO L470 AbstractCegarLoop]: Abstraction has 789 states and 1084 transitions. [2021-12-15 09:36:50,617 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 2 states have internal predecessors, (112), 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 09:36:50,617 INFO L276 IsEmpty]: Start isEmpty. Operand 789 states and 1084 transitions. [2021-12-15 09:36:50,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-15 09:36:50,621 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:36:50,621 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:36:50,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-15 09:36:50,621 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:36:50,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:36:50,622 INFO L85 PathProgramCache]: Analyzing trace with hash -590739588, now seen corresponding path program 1 times [2021-12-15 09:36:50,622 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:36:50,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383699414] [2021-12-15 09:36:50,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:36:50,623 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:36:50,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:36:50,730 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 09:36:50,730 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:36:50,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383699414] [2021-12-15 09:36:50,730 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383699414] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:36:50,730 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 09:36:50,730 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 09:36:50,731 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639128149] [2021-12-15 09:36:50,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:36:50,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 09:36:50,731 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:36:50,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 09:36:50,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:36:50,732 INFO L87 Difference]: Start difference. First operand 789 states and 1084 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 2 states have internal predecessors, (113), 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 09:36:51,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:36:51,452 INFO L93 Difference]: Finished difference Result 2316 states and 3185 transitions. [2021-12-15 09:36:51,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 09:36:51,453 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 2 states have internal predecessors, (113), 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 113 [2021-12-15 09:36:51,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:36:51,459 INFO L225 Difference]: With dead ends: 2316 [2021-12-15 09:36:51,459 INFO L226 Difference]: Without dead ends: 1529 [2021-12-15 09:36:51,461 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 09:36:51,462 INFO L933 BasicCegarLoop]: 170 mSDtfsCounter, 122 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-15 09:36:51,463 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 194 Invalid, 638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 523 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-15 09:36:51,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1529 states. [2021-12-15 09:36:51,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1529 to 1526. [2021-12-15 09:36:51,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1526 states, 1525 states have (on average 1.219016393442623) internal successors, (1859), 1525 states have internal predecessors, (1859), 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 09:36:51,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1526 states to 1526 states and 1859 transitions. [2021-12-15 09:36:51,502 INFO L78 Accepts]: Start accepts. Automaton has 1526 states and 1859 transitions. Word has length 113 [2021-12-15 09:36:51,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:36:51,504 INFO L470 AbstractCegarLoop]: Abstraction has 1526 states and 1859 transitions. [2021-12-15 09:36:51,504 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 2 states have internal predecessors, (113), 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 09:36:51,505 INFO L276 IsEmpty]: Start isEmpty. Operand 1526 states and 1859 transitions. [2021-12-15 09:36:51,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-12-15 09:36:51,515 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:36:51,516 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:36:51,516 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-15 09:36:51,517 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:36:51,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:36:51,518 INFO L85 PathProgramCache]: Analyzing trace with hash -1199532265, now seen corresponding path program 1 times [2021-12-15 09:36:51,518 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:36:51,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005921103] [2021-12-15 09:36:51,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:36:51,519 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:36:51,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:36:51,704 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 09:36:51,704 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:36:51,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005921103] [2021-12-15 09:36:51,704 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005921103] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:36:51,705 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 09:36:51,705 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 09:36:51,705 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258321632] [2021-12-15 09:36:51,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:36:51,706 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 09:36:51,706 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:36:51,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 09:36:51,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:36:51,707 INFO L87 Difference]: Start difference. First operand 1526 states and 1859 transitions. Second operand has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 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 09:36:52,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:36:52,397 INFO L93 Difference]: Finished difference Result 3614 states and 4476 transitions. [2021-12-15 09:36:52,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 09:36:52,398 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 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 171 [2021-12-15 09:36:52,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:36:52,407 INFO L225 Difference]: With dead ends: 3614 [2021-12-15 09:36:52,407 INFO L226 Difference]: Without dead ends: 2274 [2021-12-15 09:36:52,410 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 09:36:52,419 INFO L933 BasicCegarLoop]: 314 mSDtfsCounter, 161 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 547 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 547 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-15 09:36:52,420 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 335 Invalid, 646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 547 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-15 09:36:52,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2274 states. [2021-12-15 09:36:52,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2274 to 2081. [2021-12-15 09:36:52,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2081 states, 2080 states have (on average 1.2009615384615384) internal successors, (2498), 2080 states have internal predecessors, (2498), 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 09:36:52,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2081 states to 2081 states and 2498 transitions. [2021-12-15 09:36:52,470 INFO L78 Accepts]: Start accepts. Automaton has 2081 states and 2498 transitions. Word has length 171 [2021-12-15 09:36:52,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:36:52,472 INFO L470 AbstractCegarLoop]: Abstraction has 2081 states and 2498 transitions. [2021-12-15 09:36:52,472 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 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 09:36:52,472 INFO L276 IsEmpty]: Start isEmpty. Operand 2081 states and 2498 transitions. [2021-12-15 09:36:52,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2021-12-15 09:36:52,476 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:36:52,476 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, 2, 2, 2, 2, 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] [2021-12-15 09:36:52,477 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-15 09:36:52,477 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:36:52,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:36:52,479 INFO L85 PathProgramCache]: Analyzing trace with hash -1808781376, now seen corresponding path program 1 times [2021-12-15 09:36:52,479 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:36:52,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924176467] [2021-12-15 09:36:52,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:36:52,480 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:36:52,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:36:52,646 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2021-12-15 09:36:52,647 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:36:52,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924176467] [2021-12-15 09:36:52,647 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924176467] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:36:52,647 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 09:36:52,647 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 09:36:52,648 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531018339] [2021-12-15 09:36:52,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:36:52,649 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 09:36:52,649 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:36:52,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 09:36:52,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:36:52,650 INFO L87 Difference]: Start difference. First operand 2081 states and 2498 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 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 09:36:53,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:36:53,330 INFO L93 Difference]: Finished difference Result 4538 states and 5490 transitions. [2021-12-15 09:36:53,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 09:36:53,331 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 225 [2021-12-15 09:36:53,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:36:53,339 INFO L225 Difference]: With dead ends: 4538 [2021-12-15 09:36:53,339 INFO L226 Difference]: Without dead ends: 2275 [2021-12-15 09:36:53,342 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 09:36:53,343 INFO L933 BasicCegarLoop]: 326 mSDtfsCounter, 158 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 539 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-15 09:36:53,343 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 347 Invalid, 613 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 539 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-15 09:36:53,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2275 states. [2021-12-15 09:36:53,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2275 to 2265. [2021-12-15 09:36:53,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2265 states, 2264 states have (on average 1.2142226148409894) internal successors, (2749), 2264 states have internal predecessors, (2749), 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 09:36:53,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2265 states to 2265 states and 2749 transitions. [2021-12-15 09:36:53,388 INFO L78 Accepts]: Start accepts. Automaton has 2265 states and 2749 transitions. Word has length 225 [2021-12-15 09:36:53,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:36:53,389 INFO L470 AbstractCegarLoop]: Abstraction has 2265 states and 2749 transitions. [2021-12-15 09:36:53,389 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 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 09:36:53,389 INFO L276 IsEmpty]: Start isEmpty. Operand 2265 states and 2749 transitions. [2021-12-15 09:36:53,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2021-12-15 09:36:53,393 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:36:53,393 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, 2, 2, 2, 2, 2, 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] [2021-12-15 09:36:53,393 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-15 09:36:53,394 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:36:53,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:36:53,394 INFO L85 PathProgramCache]: Analyzing trace with hash -218901039, now seen corresponding path program 1 times [2021-12-15 09:36:53,395 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:36:53,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832705306] [2021-12-15 09:36:53,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:36:53,395 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:36:53,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:36:53,491 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2021-12-15 09:36:53,491 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:36:53,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832705306] [2021-12-15 09:36:53,492 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832705306] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:36:53,492 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 09:36:53,492 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 09:36:53,492 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819112713] [2021-12-15 09:36:53,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:36:53,493 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 09:36:53,493 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:36:53,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 09:36:53,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:36:53,494 INFO L87 Difference]: Start difference. First operand 2265 states and 2749 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 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 09:36:54,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:36:54,222 INFO L93 Difference]: Finished difference Result 5087 states and 6240 transitions. [2021-12-15 09:36:54,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 09:36:54,223 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 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 226 [2021-12-15 09:36:54,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:36:54,233 INFO L225 Difference]: With dead ends: 5087 [2021-12-15 09:36:54,233 INFO L226 Difference]: Without dead ends: 2824 [2021-12-15 09:36:54,236 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 09:36:54,236 INFO L933 BasicCegarLoop]: 359 mSDtfsCounter, 153 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 582 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-15 09:36:54,237 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 380 Invalid, 668 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 582 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-15 09:36:54,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2824 states. [2021-12-15 09:36:54,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2824 to 2633. [2021-12-15 09:36:54,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2633 states, 2632 states have (on average 1.2135258358662615) internal successors, (3194), 2632 states have internal predecessors, (3194), 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 09:36:54,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2633 states to 2633 states and 3194 transitions. [2021-12-15 09:36:54,280 INFO L78 Accepts]: Start accepts. Automaton has 2633 states and 3194 transitions. Word has length 226 [2021-12-15 09:36:54,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:36:54,280 INFO L470 AbstractCegarLoop]: Abstraction has 2633 states and 3194 transitions. [2021-12-15 09:36:54,280 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 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 09:36:54,281 INFO L276 IsEmpty]: Start isEmpty. Operand 2633 states and 3194 transitions. [2021-12-15 09:36:54,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2021-12-15 09:36:54,284 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:36:54,284 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-12-15 09:36:54,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-15 09:36:54,285 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:36:54,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:36:54,286 INFO L85 PathProgramCache]: Analyzing trace with hash -25691425, now seen corresponding path program 1 times [2021-12-15 09:36:54,286 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:36:54,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159408249] [2021-12-15 09:36:54,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:36:54,286 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:36:54,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:36:54,413 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 0 proven. 83 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2021-12-15 09:36:54,413 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:36:54,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159408249] [2021-12-15 09:36:54,413 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159408249] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 09:36:54,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1016051400] [2021-12-15 09:36:54,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:36:54,414 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 09:36:54,414 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 09:36:54,419 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 09:36:54,443 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 09:36:54,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:36:54,532 INFO L263 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-15 09:36:54,549 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 09:36:55,932 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 0 proven. 83 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2021-12-15 09:36:55,932 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-15 09:36:56,610 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2021-12-15 09:36:56,610 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1016051400] provided 1 perfect and 1 imperfect interpolant sequences [2021-12-15 09:36:56,611 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-12-15 09:36:56,611 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3, 3] total 6 [2021-12-15 09:36:56,611 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169012473] [2021-12-15 09:36:56,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:36:56,612 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-15 09:36:56,612 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:36:56,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-15 09:36:56,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-12-15 09:36:56,613 INFO L87 Difference]: Start difference. First operand 2633 states and 3194 transitions. Second operand has 4 states, 4 states have (on average 39.5) internal successors, (158), 3 states have internal predecessors, (158), 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 09:36:58,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:36:58,112 INFO L93 Difference]: Finished difference Result 8038 states and 10029 transitions. [2021-12-15 09:36:58,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-15 09:36:58,113 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 3 states have internal predecessors, (158), 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 246 [2021-12-15 09:36:58,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:36:58,131 INFO L225 Difference]: With dead ends: 8038 [2021-12-15 09:36:58,132 INFO L226 Difference]: Without dead ends: 5222 [2021-12-15 09:36:58,137 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 493 GetRequests, 487 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-12-15 09:36:58,137 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 343 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 1051 mSolverCounterSat, 332 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 1383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 332 IncrementalHoareTripleChecker+Valid, 1051 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-15 09:36:58,138 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [343 Valid, 68 Invalid, 1383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [332 Valid, 1051 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-15 09:36:58,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5222 states. [2021-12-15 09:36:58,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5222 to 5222. [2021-12-15 09:36:58,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5222 states, 5221 states have (on average 1.2465045010534381) internal successors, (6508), 5221 states have internal predecessors, (6508), 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 09:36:58,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5222 states to 5222 states and 6508 transitions. [2021-12-15 09:36:58,228 INFO L78 Accepts]: Start accepts. Automaton has 5222 states and 6508 transitions. Word has length 246 [2021-12-15 09:36:58,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:36:58,229 INFO L470 AbstractCegarLoop]: Abstraction has 5222 states and 6508 transitions. [2021-12-15 09:36:58,229 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 3 states have internal predecessors, (158), 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 09:36:58,230 INFO L276 IsEmpty]: Start isEmpty. Operand 5222 states and 6508 transitions. [2021-12-15 09:36:58,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2021-12-15 09:36:58,234 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:36:58,234 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 09:36:58,264 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-15 09:36:58,455 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 09:36:58,456 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:36:58,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:36:58,456 INFO L85 PathProgramCache]: Analyzing trace with hash 1131175066, now seen corresponding path program 1 times [2021-12-15 09:36:58,456 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:36:58,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651428449] [2021-12-15 09:36:58,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:36:58,457 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:36:58,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:36:58,584 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2021-12-15 09:36:58,584 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:36:58,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651428449] [2021-12-15 09:36:58,585 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651428449] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:36:58,585 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 09:36:58,585 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 09:36:58,585 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632783404] [2021-12-15 09:36:58,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:36:58,586 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 09:36:58,586 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:36:58,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 09:36:58,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:36:58,587 INFO L87 Difference]: Start difference. First operand 5222 states and 6508 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 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 09:36:59,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:36:59,306 INFO L93 Difference]: Finished difference Result 10446 states and 13023 transitions. [2021-12-15 09:36:59,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 09:36:59,307 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 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 253 [2021-12-15 09:36:59,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:36:59,326 INFO L225 Difference]: With dead ends: 10446 [2021-12-15 09:36:59,326 INFO L226 Difference]: Without dead ends: 5226 [2021-12-15 09:36:59,332 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 09:36:59,333 INFO L933 BasicCegarLoop]: 353 mSDtfsCounter, 157 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 571 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-15 09:36:59,335 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 375 Invalid, 657 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 571 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-15 09:36:59,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5226 states. [2021-12-15 09:36:59,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5226 to 5221. [2021-12-15 09:36:59,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5221 states, 5220 states have (on average 1.2015325670498085) internal successors, (6272), 5220 states have internal predecessors, (6272), 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 09:36:59,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5221 states to 5221 states and 6272 transitions. [2021-12-15 09:36:59,421 INFO L78 Accepts]: Start accepts. Automaton has 5221 states and 6272 transitions. Word has length 253 [2021-12-15 09:36:59,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:36:59,422 INFO L470 AbstractCegarLoop]: Abstraction has 5221 states and 6272 transitions. [2021-12-15 09:36:59,422 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 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 09:36:59,423 INFO L276 IsEmpty]: Start isEmpty. Operand 5221 states and 6272 transitions. [2021-12-15 09:36:59,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2021-12-15 09:36:59,427 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:36:59,427 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-12-15 09:36:59,427 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-15 09:36:59,428 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:36:59,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:36:59,428 INFO L85 PathProgramCache]: Analyzing trace with hash 503941471, now seen corresponding path program 1 times [2021-12-15 09:36:59,428 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:36:59,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458006536] [2021-12-15 09:36:59,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:36:59,429 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:36:59,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:36:59,557 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 167 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 09:36:59,558 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:36:59,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458006536] [2021-12-15 09:36:59,561 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458006536] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:36:59,562 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 09:36:59,562 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 09:36:59,562 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184396466] [2021-12-15 09:36:59,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:36:59,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-15 09:36:59,563 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:36:59,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-15 09:36:59,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-15 09:36:59,564 INFO L87 Difference]: Start difference. First operand 5221 states and 6272 transitions. Second operand has 4 states, 4 states have (on average 64.0) internal successors, (256), 3 states have internal predecessors, (256), 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 09:37:00,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:37:00,680 INFO L93 Difference]: Finished difference Result 14333 states and 17292 transitions. [2021-12-15 09:37:00,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-15 09:37:00,684 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 64.0) internal successors, (256), 3 states have internal predecessors, (256), 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 256 [2021-12-15 09:37:00,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:37:00,712 INFO L225 Difference]: With dead ends: 14333 [2021-12-15 09:37:00,713 INFO L226 Difference]: Without dead ends: 9114 [2021-12-15 09:37:00,721 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-15 09:37:00,722 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 295 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 1099 mSolverCounterSat, 154 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 1253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 154 IncrementalHoareTripleChecker+Valid, 1099 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-15 09:37:00,722 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [295 Valid, 88 Invalid, 1253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [154 Valid, 1099 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-15 09:37:00,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9114 states. [2021-12-15 09:37:00,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9114 to 8377. [2021-12-15 09:37:00,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8377 states, 8376 states have (on average 1.1943648519579753) internal successors, (10004), 8376 states have internal predecessors, (10004), 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 09:37:00,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8377 states to 8377 states and 10004 transitions. [2021-12-15 09:37:00,878 INFO L78 Accepts]: Start accepts. Automaton has 8377 states and 10004 transitions. Word has length 256 [2021-12-15 09:37:00,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:37:00,879 INFO L470 AbstractCegarLoop]: Abstraction has 8377 states and 10004 transitions. [2021-12-15 09:37:00,879 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 64.0) internal successors, (256), 3 states have internal predecessors, (256), 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 09:37:00,879 INFO L276 IsEmpty]: Start isEmpty. Operand 8377 states and 10004 transitions. [2021-12-15 09:37:00,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2021-12-15 09:37:00,886 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:37:00,886 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:37:00,887 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-15 09:37:00,887 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:37:00,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:37:00,888 INFO L85 PathProgramCache]: Analyzing trace with hash 126662482, now seen corresponding path program 1 times [2021-12-15 09:37:00,888 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:37:00,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518521805] [2021-12-15 09:37:00,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:37:00,888 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:37:00,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:37:00,982 INFO L134 CoverageAnalysis]: Checked inductivity of 327 backedges. 258 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2021-12-15 09:37:00,983 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:37:00,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518521805] [2021-12-15 09:37:00,983 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518521805] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:37:00,983 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 09:37:00,983 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 09:37:00,984 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455607711] [2021-12-15 09:37:00,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:37:00,984 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 09:37:00,984 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:37:00,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 09:37:00,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:37:00,985 INFO L87 Difference]: Start difference. First operand 8377 states and 10004 transitions. Second operand has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 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 09:37:01,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:37:01,672 INFO L93 Difference]: Finished difference Result 18769 states and 22599 transitions. [2021-12-15 09:37:01,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 09:37:01,673 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 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 293 [2021-12-15 09:37:01,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:37:01,697 INFO L225 Difference]: With dead ends: 18769 [2021-12-15 09:37:01,697 INFO L226 Difference]: Without dead ends: 10577 [2021-12-15 09:37:01,707 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 09:37:01,708 INFO L933 BasicCegarLoop]: 124 mSDtfsCounter, 174 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 169 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 169 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-15 09:37:01,709 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 148 Invalid, 617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [169 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-15 09:37:01,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10577 states. [2021-12-15 09:37:01,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10577 to 9466. [2021-12-15 09:37:01,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9466 states, 9465 states have (on average 1.1480190174326466) internal successors, (10866), 9465 states have internal predecessors, (10866), 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 09:37:01,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9466 states to 9466 states and 10866 transitions. [2021-12-15 09:37:01,858 INFO L78 Accepts]: Start accepts. Automaton has 9466 states and 10866 transitions. Word has length 293 [2021-12-15 09:37:01,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:37:01,858 INFO L470 AbstractCegarLoop]: Abstraction has 9466 states and 10866 transitions. [2021-12-15 09:37:01,859 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 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 09:37:01,859 INFO L276 IsEmpty]: Start isEmpty. Operand 9466 states and 10866 transitions. [2021-12-15 09:37:01,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2021-12-15 09:37:01,868 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:37:01,869 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:37:01,869 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-15 09:37:01,869 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:37:01,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:37:01,870 INFO L85 PathProgramCache]: Analyzing trace with hash -1759383677, now seen corresponding path program 1 times [2021-12-15 09:37:01,870 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:37:01,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283061963] [2021-12-15 09:37:01,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:37:01,871 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:37:01,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:37:02,026 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 291 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2021-12-15 09:37:02,027 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:37:02,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283061963] [2021-12-15 09:37:02,027 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283061963] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:37:02,027 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 09:37:02,027 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 09:37:02,028 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255369380] [2021-12-15 09:37:02,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:37:02,028 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 09:37:02,029 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:37:02,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 09:37:02,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:37:02,030 INFO L87 Difference]: Start difference. First operand 9466 states and 10866 transitions. Second operand has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 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 09:37:02,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:37:02,678 INFO L93 Difference]: Finished difference Result 17636 states and 20303 transitions. [2021-12-15 09:37:02,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 09:37:02,679 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 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 323 [2021-12-15 09:37:02,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:37:02,696 INFO L225 Difference]: With dead ends: 17636 [2021-12-15 09:37:02,696 INFO L226 Difference]: Without dead ends: 9464 [2021-12-15 09:37:02,705 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 09:37:02,705 INFO L933 BasicCegarLoop]: 279 mSDtfsCounter, 148 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 537 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 537 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-15 09:37:02,706 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 298 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 537 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-15 09:37:02,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9464 states. [2021-12-15 09:37:02,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9464 to 8912. [2021-12-15 09:37:02,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8912 states, 8911 states have (on average 1.1321961620469083) internal successors, (10089), 8911 states have internal predecessors, (10089), 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 09:37:02,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8912 states to 8912 states and 10089 transitions. [2021-12-15 09:37:02,825 INFO L78 Accepts]: Start accepts. Automaton has 8912 states and 10089 transitions. Word has length 323 [2021-12-15 09:37:02,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:37:02,826 INFO L470 AbstractCegarLoop]: Abstraction has 8912 states and 10089 transitions. [2021-12-15 09:37:02,826 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 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 09:37:02,826 INFO L276 IsEmpty]: Start isEmpty. Operand 8912 states and 10089 transitions. [2021-12-15 09:37:02,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2021-12-15 09:37:02,836 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:37:02,837 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-12-15 09:37:02,837 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-15 09:37:02,837 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:37:02,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:37:02,838 INFO L85 PathProgramCache]: Analyzing trace with hash -126252397, now seen corresponding path program 1 times [2021-12-15 09:37:02,838 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:37:02,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485266471] [2021-12-15 09:37:02,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:37:02,839 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:37:02,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:37:02,993 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2021-12-15 09:37:02,994 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:37:02,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485266471] [2021-12-15 09:37:02,994 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485266471] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:37:02,994 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 09:37:02,994 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 09:37:02,995 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356052925] [2021-12-15 09:37:02,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:37:02,995 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 09:37:02,995 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:37:02,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 09:37:02,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:37:02,996 INFO L87 Difference]: Start difference. First operand 8912 states and 10089 transitions. Second operand has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 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 09:37:03,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:37:03,705 INFO L93 Difference]: Finished difference Result 21502 states and 24423 transitions. [2021-12-15 09:37:03,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 09:37:03,706 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 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 342 [2021-12-15 09:37:03,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:37:03,727 INFO L225 Difference]: With dead ends: 21502 [2021-12-15 09:37:03,727 INFO L226 Difference]: Without dead ends: 12959 [2021-12-15 09:37:03,736 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 09:37:03,737 INFO L933 BasicCegarLoop]: 279 mSDtfsCounter, 175 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 161 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 161 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-15 09:37:03,737 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 292 Invalid, 656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [161 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-15 09:37:03,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12959 states. [2021-12-15 09:37:03,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12959 to 11302. [2021-12-15 09:37:03,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11302 states, 11301 states have (on average 1.1193699672595345) internal successors, (12650), 11301 states have internal predecessors, (12650), 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 09:37:03,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11302 states to 11302 states and 12650 transitions. [2021-12-15 09:37:03,910 INFO L78 Accepts]: Start accepts. Automaton has 11302 states and 12650 transitions. Word has length 342 [2021-12-15 09:37:03,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:37:03,911 INFO L470 AbstractCegarLoop]: Abstraction has 11302 states and 12650 transitions. [2021-12-15 09:37:03,911 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 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 09:37:03,912 INFO L276 IsEmpty]: Start isEmpty. Operand 11302 states and 12650 transitions. [2021-12-15 09:37:03,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 440 [2021-12-15 09:37:03,930 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:37:03,930 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:37:03,930 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-15 09:37:03,931 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:37:03,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:37:03,931 INFO L85 PathProgramCache]: Analyzing trace with hash -575963578, now seen corresponding path program 1 times [2021-12-15 09:37:03,931 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:37:03,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328073300] [2021-12-15 09:37:03,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:37:03,932 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:37:04,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:37:04,091 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 337 trivial. 0 not checked. [2021-12-15 09:37:04,092 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:37:04,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328073300] [2021-12-15 09:37:04,092 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328073300] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:37:04,092 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 09:37:04,093 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 09:37:04,093 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667099868] [2021-12-15 09:37:04,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:37:04,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 09:37:04,094 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:37:04,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 09:37:04,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:37:04,094 INFO L87 Difference]: Start difference. First operand 11302 states and 12650 transitions. Second operand has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 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 09:37:04,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:37:04,677 INFO L93 Difference]: Finished difference Result 22781 states and 25523 transitions. [2021-12-15 09:37:04,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 09:37:04,677 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 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 439 [2021-12-15 09:37:04,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:37:04,703 INFO L225 Difference]: With dead ends: 22781 [2021-12-15 09:37:04,703 INFO L226 Difference]: Without dead ends: 12957 [2021-12-15 09:37:04,713 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 09:37:04,714 INFO L933 BasicCegarLoop]: 111 mSDtfsCounter, 177 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-15 09:37:04,715 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [177 Valid, 132 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-15 09:37:04,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12957 states. [2021-12-15 09:37:04,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12957 to 8345. [2021-12-15 09:37:04,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8345 states, 8344 states have (on average 1.1247603068072867) internal successors, (9385), 8344 states have internal predecessors, (9385), 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 09:37:04,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8345 states to 8345 states and 9385 transitions. [2021-12-15 09:37:04,835 INFO L78 Accepts]: Start accepts. Automaton has 8345 states and 9385 transitions. Word has length 439 [2021-12-15 09:37:04,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:37:04,836 INFO L470 AbstractCegarLoop]: Abstraction has 8345 states and 9385 transitions. [2021-12-15 09:37:04,836 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 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 09:37:04,837 INFO L276 IsEmpty]: Start isEmpty. Operand 8345 states and 9385 transitions. [2021-12-15 09:37:04,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 450 [2021-12-15 09:37:04,847 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:37:04,848 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-12-15 09:37:04,848 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-15 09:37:04,848 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:37:04,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:37:04,849 INFO L85 PathProgramCache]: Analyzing trace with hash 1542853619, now seen corresponding path program 1 times [2021-12-15 09:37:04,849 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:37:04,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068997402] [2021-12-15 09:37:04,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:37:04,850 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:37:04,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:37:05,063 INFO L134 CoverageAnalysis]: Checked inductivity of 446 backedges. 404 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-12-15 09:37:05,063 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:37:05,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068997402] [2021-12-15 09:37:05,064 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068997402] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:37:05,064 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 09:37:05,064 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 09:37:05,064 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271134275] [2021-12-15 09:37:05,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:37:05,065 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-15 09:37:05,065 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:37:05,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-15 09:37:05,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-15 09:37:05,066 INFO L87 Difference]: Start difference. First operand 8345 states and 9385 transitions. Second operand has 4 states, 4 states have (on average 102.0) internal successors, (408), 3 states have internal predecessors, (408), 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 09:37:06,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:37:06,053 INFO L93 Difference]: Finished difference Result 18898 states and 21206 transitions. [2021-12-15 09:37:06,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-15 09:37:06,054 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 102.0) internal successors, (408), 3 states have internal predecessors, (408), 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 449 [2021-12-15 09:37:06,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:37:06,070 INFO L225 Difference]: With dead ends: 18898 [2021-12-15 09:37:06,071 INFO L226 Difference]: Without dead ends: 10739 [2021-12-15 09:37:06,080 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-15 09:37:06,081 INFO L933 BasicCegarLoop]: 86 mSDtfsCounter, 98 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 1031 mSolverCounterSat, 162 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 1193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 162 IncrementalHoareTripleChecker+Valid, 1031 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-15 09:37:06,081 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [98 Valid, 124 Invalid, 1193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [162 Valid, 1031 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-15 09:37:06,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10739 states. [2021-12-15 09:37:06,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10739 to 10369. [2021-12-15 09:37:06,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10369 states, 10368 states have (on average 1.1129436728395061) internal successors, (11539), 10368 states have internal predecessors, (11539), 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 09:37:06,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10369 states to 10369 states and 11539 transitions. [2021-12-15 09:37:06,240 INFO L78 Accepts]: Start accepts. Automaton has 10369 states and 11539 transitions. Word has length 449 [2021-12-15 09:37:06,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:37:06,241 INFO L470 AbstractCegarLoop]: Abstraction has 10369 states and 11539 transitions. [2021-12-15 09:37:06,241 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 102.0) internal successors, (408), 3 states have internal predecessors, (408), 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 09:37:06,242 INFO L276 IsEmpty]: Start isEmpty. Operand 10369 states and 11539 transitions. [2021-12-15 09:37:06,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 476 [2021-12-15 09:37:06,256 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:37:06,256 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2021-12-15 09:37:06,257 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-15 09:37:06,257 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:37:06,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:37:06,257 INFO L85 PathProgramCache]: Analyzing trace with hash 132646832, now seen corresponding path program 1 times [2021-12-15 09:37:06,258 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:37:06,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875677020] [2021-12-15 09:37:06,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:37:06,258 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:37:06,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:37:06,404 INFO L134 CoverageAnalysis]: Checked inductivity of 746 backedges. 607 proven. 0 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2021-12-15 09:37:06,404 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:37:06,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875677020] [2021-12-15 09:37:06,405 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875677020] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:37:06,405 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 09:37:06,405 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 09:37:06,407 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829615777] [2021-12-15 09:37:06,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:37:06,408 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 09:37:06,408 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:37:06,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 09:37:06,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:37:06,409 INFO L87 Difference]: Start difference. First operand 10369 states and 11539 transitions. Second operand has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 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 09:37:07,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:37:07,019 INFO L93 Difference]: Finished difference Result 21294 states and 23773 transitions. [2021-12-15 09:37:07,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 09:37:07,020 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 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 475 [2021-12-15 09:37:07,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:37:07,035 INFO L225 Difference]: With dead ends: 21294 [2021-12-15 09:37:07,035 INFO L226 Difference]: Without dead ends: 11479 [2021-12-15 09:37:07,083 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 09:37:07,083 INFO L933 BasicCegarLoop]: 321 mSDtfsCounter, 84 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 543 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 543 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-15 09:37:07,083 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [84 Valid, 346 Invalid, 595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 543 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-15 09:37:07,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11479 states. [2021-12-15 09:37:07,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11479 to 10926. [2021-12-15 09:37:07,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10926 states, 10925 states have (on average 1.1102059496567507) internal successors, (12129), 10925 states have internal predecessors, (12129), 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 09:37:07,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10926 states to 10926 states and 12129 transitions. [2021-12-15 09:37:07,210 INFO L78 Accepts]: Start accepts. Automaton has 10926 states and 12129 transitions. Word has length 475 [2021-12-15 09:37:07,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:37:07,211 INFO L470 AbstractCegarLoop]: Abstraction has 10926 states and 12129 transitions. [2021-12-15 09:37:07,211 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 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 09:37:07,211 INFO L276 IsEmpty]: Start isEmpty. Operand 10926 states and 12129 transitions. [2021-12-15 09:37:07,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 488 [2021-12-15 09:37:07,225 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:37:07,225 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-12-15 09:37:07,226 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-15 09:37:07,226 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:37:07,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:37:07,226 INFO L85 PathProgramCache]: Analyzing trace with hash -2079186287, now seen corresponding path program 1 times [2021-12-15 09:37:07,226 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:37:07,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618958166] [2021-12-15 09:37:07,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:37:07,227 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:37:07,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:37:07,436 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 0 proven. 304 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2021-12-15 09:37:07,436 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:37:07,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618958166] [2021-12-15 09:37:07,437 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618958166] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 09:37:07,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2131284917] [2021-12-15 09:37:07,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:37:07,437 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 09:37:07,438 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 09:37:07,440 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 09:37:07,491 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 09:37:07,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:37:07,622 INFO L263 TraceCheckSpWp]: Trace formula consists of 636 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-15 09:37:07,636 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 09:37:08,521 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 304 proven. 0 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2021-12-15 09:37:08,521 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 09:37:08,521 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2131284917] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:37:08,521 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-15 09:37:08,522 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-12-15 09:37:08,522 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476840767] [2021-12-15 09:37:08,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:37:08,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 09:37:08,523 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:37:08,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 09:37:08,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-15 09:37:08,524 INFO L87 Difference]: Start difference. First operand 10926 states and 12129 transitions. Second operand has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 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 09:37:09,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:37:09,117 INFO L93 Difference]: Finished difference Result 22793 states and 25389 transitions. [2021-12-15 09:37:09,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 09:37:09,118 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 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 487 [2021-12-15 09:37:09,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:37:09,132 INFO L225 Difference]: With dead ends: 22793 [2021-12-15 09:37:09,132 INFO L226 Difference]: Without dead ends: 12421 [2021-12-15 09:37:09,140 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 490 GetRequests, 486 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-15 09:37:09,141 INFO L933 BasicCegarLoop]: 295 mSDtfsCounter, 112 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 540 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 540 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-15 09:37:09,141 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 314 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 540 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-15 09:37:09,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12421 states. [2021-12-15 09:37:09,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12421 to 12042. [2021-12-15 09:37:09,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12042 states, 12041 states have (on average 1.1113694875840876) internal successors, (13382), 12041 states have internal predecessors, (13382), 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 09:37:09,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12042 states to 12042 states and 13382 transitions. [2021-12-15 09:37:09,298 INFO L78 Accepts]: Start accepts. Automaton has 12042 states and 13382 transitions. Word has length 487 [2021-12-15 09:37:09,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:37:09,299 INFO L470 AbstractCegarLoop]: Abstraction has 12042 states and 13382 transitions. [2021-12-15 09:37:09,299 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 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 09:37:09,299 INFO L276 IsEmpty]: Start isEmpty. Operand 12042 states and 13382 transitions. [2021-12-15 09:37:09,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 490 [2021-12-15 09:37:09,313 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:37:09,313 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 09:37:09,336 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 09:37:09,527 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,SelfDestructingSolverStorable15 [2021-12-15 09:37:09,528 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:37:09,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:37:09,528 INFO L85 PathProgramCache]: Analyzing trace with hash -1008492538, now seen corresponding path program 1 times [2021-12-15 09:37:09,528 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:37:09,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771090760] [2021-12-15 09:37:09,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:37:09,529 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:37:09,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:37:09,700 INFO L134 CoverageAnalysis]: Checked inductivity of 774 backedges. 436 proven. 0 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2021-12-15 09:37:09,700 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:37:09,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771090760] [2021-12-15 09:37:09,701 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771090760] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:37:09,701 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 09:37:09,701 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 09:37:09,701 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091871954] [2021-12-15 09:37:09,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:37:09,703 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 09:37:09,703 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:37:09,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 09:37:09,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:37:09,703 INFO L87 Difference]: Start difference. First operand 12042 states and 13382 transitions. Second operand has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 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 09:37:10,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:37:10,308 INFO L93 Difference]: Finished difference Result 25922 states and 28797 transitions. [2021-12-15 09:37:10,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 09:37:10,308 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 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 489 [2021-12-15 09:37:10,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:37:10,322 INFO L225 Difference]: With dead ends: 25922 [2021-12-15 09:37:10,322 INFO L226 Difference]: Without dead ends: 14066 [2021-12-15 09:37:10,330 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 09:37:10,331 INFO L933 BasicCegarLoop]: 141 mSDtfsCounter, 107 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-15 09:37:10,331 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 159 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 499 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-15 09:37:10,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14066 states. [2021-12-15 09:37:10,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14066 to 13698. [2021-12-15 09:37:10,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13698 states, 13697 states have (on average 1.0964444768927502) internal successors, (15018), 13697 states have internal predecessors, (15018), 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 09:37:10,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13698 states to 13698 states and 15018 transitions. [2021-12-15 09:37:10,493 INFO L78 Accepts]: Start accepts. Automaton has 13698 states and 15018 transitions. Word has length 489 [2021-12-15 09:37:10,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:37:10,493 INFO L470 AbstractCegarLoop]: Abstraction has 13698 states and 15018 transitions. [2021-12-15 09:37:10,494 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 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 09:37:10,494 INFO L276 IsEmpty]: Start isEmpty. Operand 13698 states and 15018 transitions. [2021-12-15 09:37:10,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 563 [2021-12-15 09:37:10,511 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:37:10,511 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 09:37:10,511 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-15 09:37:10,511 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:37:10,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:37:10,512 INFO L85 PathProgramCache]: Analyzing trace with hash -2127881712, now seen corresponding path program 1 times [2021-12-15 09:37:10,512 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:37:10,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752983575] [2021-12-15 09:37:10,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:37:10,513 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:37:10,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:37:10,702 INFO L134 CoverageAnalysis]: Checked inductivity of 1107 backedges. 950 proven. 0 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2021-12-15 09:37:10,702 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:37:10,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752983575] [2021-12-15 09:37:10,703 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752983575] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:37:10,703 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 09:37:10,703 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-15 09:37:10,703 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528021048] [2021-12-15 09:37:10,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:37:10,704 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-15 09:37:10,704 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:37:10,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-15 09:37:10,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-15 09:37:10,705 INFO L87 Difference]: Start difference. First operand 13698 states and 15018 transitions. Second operand has 4 states, 4 states have (on average 112.25) internal successors, (449), 4 states have internal predecessors, (449), 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 09:37:11,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:37:11,661 INFO L93 Difference]: Finished difference Result 32027 states and 35245 transitions. [2021-12-15 09:37:11,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-15 09:37:11,661 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 112.25) internal successors, (449), 4 states have internal predecessors, (449), 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 562 [2021-12-15 09:37:11,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:37:11,680 INFO L225 Difference]: With dead ends: 32027 [2021-12-15 09:37:11,680 INFO L226 Difference]: Without dead ends: 18699 [2021-12-15 09:37:11,690 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-15 09:37:11,691 INFO L933 BasicCegarLoop]: 118 mSDtfsCounter, 182 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 994 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 1094 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 994 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-15 09:37:11,691 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [182 Valid, 157 Invalid, 1094 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 994 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-15 09:37:11,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18699 states. [2021-12-15 09:37:11,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18699 to 17025. [2021-12-15 09:37:11,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17025 states, 17024 states have (on average 1.0911654135338347) internal successors, (18576), 17024 states have internal predecessors, (18576), 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 09:37:11,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17025 states to 17025 states and 18576 transitions. [2021-12-15 09:37:11,878 INFO L78 Accepts]: Start accepts. Automaton has 17025 states and 18576 transitions. Word has length 562 [2021-12-15 09:37:11,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:37:11,879 INFO L470 AbstractCegarLoop]: Abstraction has 17025 states and 18576 transitions. [2021-12-15 09:37:11,879 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 112.25) internal successors, (449), 4 states have internal predecessors, (449), 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 09:37:11,879 INFO L276 IsEmpty]: Start isEmpty. Operand 17025 states and 18576 transitions. [2021-12-15 09:37:11,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 573 [2021-12-15 09:37:11,897 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:37:11,897 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 09:37:11,898 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-15 09:37:11,898 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:37:11,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:37:11,899 INFO L85 PathProgramCache]: Analyzing trace with hash 399883863, now seen corresponding path program 1 times [2021-12-15 09:37:11,899 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:37:11,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109293048] [2021-12-15 09:37:11,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:37:11,899 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:37:12,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:37:12,127 INFO L134 CoverageAnalysis]: Checked inductivity of 1121 backedges. 759 proven. 0 refuted. 0 times theorem prover too weak. 362 trivial. 0 not checked. [2021-12-15 09:37:12,127 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:37:12,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109293048] [2021-12-15 09:37:12,128 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109293048] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:37:12,128 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 09:37:12,128 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 09:37:12,128 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491552192] [2021-12-15 09:37:12,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:37:12,130 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-15 09:37:12,130 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:37:12,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-15 09:37:12,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-15 09:37:12,131 INFO L87 Difference]: Start difference. First operand 17025 states and 18576 transitions. Second operand has 4 states, 4 states have (on average 92.5) internal successors, (370), 3 states have internal predecessors, (370), 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 09:37:13,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:37:13,136 INFO L93 Difference]: Finished difference Result 36082 states and 39393 transitions. [2021-12-15 09:37:13,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-15 09:37:13,137 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 92.5) internal successors, (370), 3 states have internal predecessors, (370), 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 572 [2021-12-15 09:37:13,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:37:13,158 INFO L225 Difference]: With dead ends: 36082 [2021-12-15 09:37:13,158 INFO L226 Difference]: Without dead ends: 19427 [2021-12-15 09:37:13,171 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-15 09:37:13,172 INFO L933 BasicCegarLoop]: 70 mSDtfsCounter, 180 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 969 mSolverCounterSat, 237 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 1206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 237 IncrementalHoareTripleChecker+Valid, 969 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-15 09:37:13,172 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [180 Valid, 102 Invalid, 1206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [237 Valid, 969 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-15 09:37:13,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19427 states. [2021-12-15 09:37:13,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19427 to 18865. [2021-12-15 09:37:13,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18865 states, 18864 states have (on average 1.087680237489398) internal successors, (20518), 18864 states have internal predecessors, (20518), 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 09:37:13,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18865 states to 18865 states and 20518 transitions. [2021-12-15 09:37:13,442 INFO L78 Accepts]: Start accepts. Automaton has 18865 states and 20518 transitions. Word has length 572 [2021-12-15 09:37:13,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:37:13,443 INFO L470 AbstractCegarLoop]: Abstraction has 18865 states and 20518 transitions. [2021-12-15 09:37:13,443 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 92.5) internal successors, (370), 3 states have internal predecessors, (370), 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 09:37:13,443 INFO L276 IsEmpty]: Start isEmpty. Operand 18865 states and 20518 transitions. [2021-12-15 09:37:13,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 661 [2021-12-15 09:37:13,460 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:37:13,461 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 09:37:13,461 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-15 09:37:13,461 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:37:13,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:37:13,462 INFO L85 PathProgramCache]: Analyzing trace with hash 2124046520, now seen corresponding path program 1 times [2021-12-15 09:37:13,462 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:37:13,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128440827] [2021-12-15 09:37:13,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:37:13,463 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:37:13,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:37:13,640 INFO L134 CoverageAnalysis]: Checked inductivity of 1563 backedges. 917 proven. 0 refuted. 0 times theorem prover too weak. 646 trivial. 0 not checked. [2021-12-15 09:37:13,640 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:37:13,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128440827] [2021-12-15 09:37:13,642 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128440827] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:37:13,642 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 09:37:13,642 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 09:37:13,642 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106300469] [2021-12-15 09:37:13,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:37:13,643 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 09:37:13,643 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:37:13,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 09:37:13,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:37:13,644 INFO L87 Difference]: Start difference. First operand 18865 states and 20518 transitions. Second operand has 3 states, 3 states have (on average 85.66666666666667) internal successors, (257), 3 states have internal predecessors, (257), 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 09:37:14,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:37:14,283 INFO L93 Difference]: Finished difference Result 38831 states and 42300 transitions. [2021-12-15 09:37:14,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 09:37:14,283 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 85.66666666666667) internal successors, (257), 3 states have internal predecessors, (257), 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 660 [2021-12-15 09:37:14,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:37:14,299 INFO L225 Difference]: With dead ends: 38831 [2021-12-15 09:37:14,299 INFO L226 Difference]: Without dead ends: 19968 [2021-12-15 09:37:14,305 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 09:37:14,305 INFO L933 BasicCegarLoop]: 322 mSDtfsCounter, 192 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-15 09:37:14,306 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [192 Valid, 345 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-15 09:37:14,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19968 states. [2021-12-15 09:37:14,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19968 to 19414. [2021-12-15 09:37:14,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19414 states, 19413 states have (on average 1.0788131664348632) internal successors, (20943), 19413 states have internal predecessors, (20943), 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 09:37:14,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19414 states to 19414 states and 20943 transitions. [2021-12-15 09:37:14,472 INFO L78 Accepts]: Start accepts. Automaton has 19414 states and 20943 transitions. Word has length 660 [2021-12-15 09:37:14,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:37:14,473 INFO L470 AbstractCegarLoop]: Abstraction has 19414 states and 20943 transitions. [2021-12-15 09:37:14,473 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 85.66666666666667) internal successors, (257), 3 states have internal predecessors, (257), 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 09:37:14,473 INFO L276 IsEmpty]: Start isEmpty. Operand 19414 states and 20943 transitions. [2021-12-15 09:37:14,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 726 [2021-12-15 09:37:14,490 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:37:14,490 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 09:37:14,491 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-15 09:37:14,491 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:37:14,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:37:14,492 INFO L85 PathProgramCache]: Analyzing trace with hash 456496721, now seen corresponding path program 1 times [2021-12-15 09:37:14,492 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:37:14,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469841103] [2021-12-15 09:37:14,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:37:14,492 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:37:14,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:37:14,809 INFO L134 CoverageAnalysis]: Checked inductivity of 2030 backedges. 1651 proven. 0 refuted. 0 times theorem prover too weak. 379 trivial. 0 not checked. [2021-12-15 09:37:14,810 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:37:14,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469841103] [2021-12-15 09:37:14,810 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469841103] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:37:14,810 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 09:37:14,810 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-15 09:37:14,813 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691854778] [2021-12-15 09:37:14,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:37:14,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-15 09:37:14,814 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:37:14,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-15 09:37:14,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-15 09:37:14,814 INFO L87 Difference]: Start difference. First operand 19414 states and 20943 transitions. Second operand has 4 states, 4 states have (on average 115.5) internal successors, (462), 4 states have internal predecessors, (462), 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 09:37:15,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:37:15,685 INFO L93 Difference]: Finished difference Result 40499 states and 43661 transitions. [2021-12-15 09:37:15,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-15 09:37:15,685 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 115.5) internal successors, (462), 4 states have internal predecessors, (462), 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 725 [2021-12-15 09:37:15,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:37:15,712 INFO L225 Difference]: With dead ends: 40499 [2021-12-15 09:37:15,712 INFO L226 Difference]: Without dead ends: 21455 [2021-12-15 09:37:15,725 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-15 09:37:15,726 INFO L933 BasicCegarLoop]: 114 mSDtfsCounter, 172 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 1087 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 1136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1087 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-15 09:37:15,726 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [172 Valid, 164 Invalid, 1136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1087 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-15 09:37:15,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21455 states. [2021-12-15 09:37:15,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21455 to 19414. [2021-12-15 09:37:15,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19414 states, 19413 states have (on average 1.0788131664348632) internal successors, (20943), 19413 states have internal predecessors, (20943), 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 09:37:15,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19414 states to 19414 states and 20943 transitions. [2021-12-15 09:37:15,965 INFO L78 Accepts]: Start accepts. Automaton has 19414 states and 20943 transitions. Word has length 725 [2021-12-15 09:37:15,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:37:15,966 INFO L470 AbstractCegarLoop]: Abstraction has 19414 states and 20943 transitions. [2021-12-15 09:37:15,966 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 115.5) internal successors, (462), 4 states have internal predecessors, (462), 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 09:37:15,966 INFO L276 IsEmpty]: Start isEmpty. Operand 19414 states and 20943 transitions. [2021-12-15 09:37:15,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 734 [2021-12-15 09:37:15,986 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:37:15,987 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 09:37:15,987 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-12-15 09:37:15,987 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:37:15,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:37:15,988 INFO L85 PathProgramCache]: Analyzing trace with hash -1541384588, now seen corresponding path program 1 times [2021-12-15 09:37:15,988 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:37:15,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950542795] [2021-12-15 09:37:15,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:37:15,989 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:37:16,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:37:16,401 INFO L134 CoverageAnalysis]: Checked inductivity of 1690 backedges. 999 proven. 8 refuted. 0 times theorem prover too weak. 683 trivial. 0 not checked. [2021-12-15 09:37:16,401 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:37:16,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950542795] [2021-12-15 09:37:16,401 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950542795] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 09:37:16,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1030629735] [2021-12-15 09:37:16,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:37:16,402 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 09:37:16,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 09:37:16,403 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-15 09:37:16,404 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-15 09:37:16,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:37:16,607 INFO L263 TraceCheckSpWp]: Trace formula consists of 961 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-15 09:37:16,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 09:37:17,989 INFO L134 CoverageAnalysis]: Checked inductivity of 1690 backedges. 683 proven. 0 refuted. 0 times theorem prover too weak. 1007 trivial. 0 not checked. [2021-12-15 09:37:17,989 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 09:37:17,989 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1030629735] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:37:17,989 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-15 09:37:17,990 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2021-12-15 09:37:17,990 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283722714] [2021-12-15 09:37:17,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:37:17,991 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 09:37:17,991 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:37:17,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 09:37:17,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-12-15 09:37:17,992 INFO L87 Difference]: Start difference. First operand 19414 states and 20943 transitions. Second operand has 3 states, 3 states have (on average 100.0) internal successors, (300), 3 states have internal predecessors, (300), 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 09:37:18,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:37:18,648 INFO L93 Difference]: Finished difference Result 40675 states and 43899 transitions. [2021-12-15 09:37:18,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 09:37:18,649 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 100.0) internal successors, (300), 3 states have internal predecessors, (300), 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 733 [2021-12-15 09:37:18,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:37:18,678 INFO L225 Difference]: With dead ends: 40675 [2021-12-15 09:37:18,679 INFO L226 Difference]: Without dead ends: 21631 [2021-12-15 09:37:18,695 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 739 GetRequests, 733 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-12-15 09:37:18,696 INFO L933 BasicCegarLoop]: 317 mSDtfsCounter, 99 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-15 09:37:18,696 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 336 Invalid, 513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-15 09:37:18,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21631 states. [2021-12-15 09:37:18,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21631 to 20518. [2021-12-15 09:37:18,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20518 states, 20517 states have (on average 1.0788126919140226) internal successors, (22134), 20517 states have internal predecessors, (22134), 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 09:37:18,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20518 states to 20518 states and 22134 transitions. [2021-12-15 09:37:18,962 INFO L78 Accepts]: Start accepts. Automaton has 20518 states and 22134 transitions. Word has length 733 [2021-12-15 09:37:18,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:37:18,962 INFO L470 AbstractCegarLoop]: Abstraction has 20518 states and 22134 transitions. [2021-12-15 09:37:18,962 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 100.0) internal successors, (300), 3 states have internal predecessors, (300), 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 09:37:18,963 INFO L276 IsEmpty]: Start isEmpty. Operand 20518 states and 22134 transitions. [2021-12-15 09:37:18,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 864 [2021-12-15 09:37:18,981 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:37:18,981 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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] [2021-12-15 09:37:18,999 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-12-15 09:37:19,182 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 09:37:19,182 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:37:19,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:37:19,183 INFO L85 PathProgramCache]: Analyzing trace with hash 747293827, now seen corresponding path program 1 times [2021-12-15 09:37:19,183 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:37:19,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649582316] [2021-12-15 09:37:19,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:37:19,183 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:37:19,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:37:19,752 INFO L134 CoverageAnalysis]: Checked inductivity of 2389 backedges. 1366 proven. 234 refuted. 0 times theorem prover too weak. 789 trivial. 0 not checked. [2021-12-15 09:37:19,753 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:37:19,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649582316] [2021-12-15 09:37:19,753 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649582316] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 09:37:19,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1765167314] [2021-12-15 09:37:19,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:37:19,753 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 09:37:19,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 09:37:19,756 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-15 09:37:19,758 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-15 09:37:19,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:37:19,980 INFO L263 TraceCheckSpWp]: Trace formula consists of 1115 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-15 09:37:19,987 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 09:37:21,203 INFO L134 CoverageAnalysis]: Checked inductivity of 2389 backedges. 1382 proven. 0 refuted. 0 times theorem prover too weak. 1007 trivial. 0 not checked. [2021-12-15 09:37:21,203 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 09:37:21,203 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1765167314] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:37:21,204 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-15 09:37:21,204 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2021-12-15 09:37:21,204 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414705285] [2021-12-15 09:37:21,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:37:21,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-15 09:37:21,205 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:37:21,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-15 09:37:21,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-12-15 09:37:21,206 INFO L87 Difference]: Start difference. First operand 20518 states and 22134 transitions. Second operand has 4 states, 4 states have (on average 107.5) internal successors, (430), 4 states have internal predecessors, (430), 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 09:37:21,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:37:21,936 INFO L93 Difference]: Finished difference Result 44164 states and 47608 transitions. [2021-12-15 09:37:21,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-15 09:37:21,937 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 107.5) internal successors, (430), 4 states have internal predecessors, (430), 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 863 [2021-12-15 09:37:21,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:37:21,960 INFO L225 Difference]: With dead ends: 44164 [2021-12-15 09:37:21,961 INFO L226 Difference]: Without dead ends: 24016 [2021-12-15 09:37:21,974 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 869 GetRequests, 861 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-12-15 09:37:21,974 INFO L933 BasicCegarLoop]: 103 mSDtfsCounter, 165 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 742 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 829 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 742 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-15 09:37:21,975 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 143 Invalid, 829 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 742 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-15 09:37:21,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24016 states. [2021-12-15 09:37:22,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24016 to 20150. [2021-12-15 09:37:22,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20150 states, 20149 states have (on average 1.0781180207454464) internal successors, (21723), 20149 states have internal predecessors, (21723), 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 09:37:22,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20150 states to 20150 states and 21723 transitions. [2021-12-15 09:37:22,252 INFO L78 Accepts]: Start accepts. Automaton has 20150 states and 21723 transitions. Word has length 863 [2021-12-15 09:37:22,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:37:22,252 INFO L470 AbstractCegarLoop]: Abstraction has 20150 states and 21723 transitions. [2021-12-15 09:37:22,253 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 107.5) internal successors, (430), 4 states have internal predecessors, (430), 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 09:37:22,253 INFO L276 IsEmpty]: Start isEmpty. Operand 20150 states and 21723 transitions. [2021-12-15 09:37:22,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 874 [2021-12-15 09:37:22,268 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:37:22,269 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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] [2021-12-15 09:37:22,286 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-15 09:37:22,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 09:37:22,470 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:37:22,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:37:22,470 INFO L85 PathProgramCache]: Analyzing trace with hash -1448162269, now seen corresponding path program 1 times [2021-12-15 09:37:22,470 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:37:22,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853469517] [2021-12-15 09:37:22,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:37:22,471 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:37:22,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:37:22,946 INFO L134 CoverageAnalysis]: Checked inductivity of 2399 backedges. 1032 proven. 651 refuted. 0 times theorem prover too weak. 716 trivial. 0 not checked. [2021-12-15 09:37:22,947 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:37:22,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853469517] [2021-12-15 09:37:22,948 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853469517] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 09:37:22,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [922218485] [2021-12-15 09:37:22,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:37:22,949 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 09:37:22,949 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 09:37:22,950 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-15 09:37:22,991 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-15 09:37:23,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:37:23,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 1127 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-15 09:37:23,158 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 09:37:24,339 INFO L134 CoverageAnalysis]: Checked inductivity of 2399 backedges. 815 proven. 0 refuted. 0 times theorem prover too weak. 1584 trivial. 0 not checked. [2021-12-15 09:37:24,339 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 09:37:24,339 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [922218485] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:37:24,340 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-15 09:37:24,340 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 11 [2021-12-15 09:37:24,340 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870758932] [2021-12-15 09:37:24,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:37:24,341 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 09:37:24,341 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:37:24,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 09:37:24,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-12-15 09:37:24,342 INFO L87 Difference]: Start difference. First operand 20150 states and 21723 transitions. Second operand has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 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 09:37:24,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:37:24,855 INFO L93 Difference]: Finished difference Result 41223 states and 44414 transitions. [2021-12-15 09:37:24,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 09:37:24,855 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 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 873 [2021-12-15 09:37:24,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:37:24,875 INFO L225 Difference]: With dead ends: 41223 [2021-12-15 09:37:24,876 INFO L226 Difference]: Without dead ends: 21443 [2021-12-15 09:37:24,887 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 881 GetRequests, 872 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-12-15 09:37:24,888 INFO L933 BasicCegarLoop]: 323 mSDtfsCounter, 98 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-15 09:37:24,888 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [98 Valid, 343 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 499 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-15 09:37:24,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21443 states. [2021-12-15 09:37:25,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21443 to 19966. [2021-12-15 09:37:25,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19966 states, 19965 states have (on average 1.0759328825444527) internal successors, (21481), 19965 states have internal predecessors, (21481), 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 09:37:25,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19966 states to 19966 states and 21481 transitions. [2021-12-15 09:37:25,064 INFO L78 Accepts]: Start accepts. Automaton has 19966 states and 21481 transitions. Word has length 873 [2021-12-15 09:37:25,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:37:25,065 INFO L470 AbstractCegarLoop]: Abstraction has 19966 states and 21481 transitions. [2021-12-15 09:37:25,065 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 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 09:37:25,065 INFO L276 IsEmpty]: Start isEmpty. Operand 19966 states and 21481 transitions. [2021-12-15 09:37:25,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 935 [2021-12-15 09:37:25,083 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:37:25,083 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 09:37:25,104 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-15 09:37:25,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2021-12-15 09:37:25,294 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:37:25,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:37:25,295 INFO L85 PathProgramCache]: Analyzing trace with hash -1116372708, now seen corresponding path program 1 times [2021-12-15 09:37:25,295 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:37:25,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738432952] [2021-12-15 09:37:25,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:37:25,295 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:37:25,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:37:25,629 INFO L134 CoverageAnalysis]: Checked inductivity of 2976 backedges. 1385 proven. 0 refuted. 0 times theorem prover too weak. 1591 trivial. 0 not checked. [2021-12-15 09:37:25,630 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:37:25,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738432952] [2021-12-15 09:37:25,630 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738432952] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:37:25,630 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 09:37:25,630 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 09:37:25,631 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112587643] [2021-12-15 09:37:25,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:37:25,631 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 09:37:25,631 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:37:25,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 09:37:25,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:37:25,632 INFO L87 Difference]: Start difference. First operand 19966 states and 21481 transitions. Second operand has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 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 09:37:26,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:37:26,254 INFO L93 Difference]: Finished difference Result 38093 states and 40962 transitions. [2021-12-15 09:37:26,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 09:37:26,255 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 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 934 [2021-12-15 09:37:26,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:37:26,255 INFO L225 Difference]: With dead ends: 38093 [2021-12-15 09:37:26,256 INFO L226 Difference]: Without dead ends: 0 [2021-12-15 09:37:26,267 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 09:37:26,268 INFO L933 BasicCegarLoop]: 318 mSDtfsCounter, 110 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-15 09:37:26,268 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 341 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-15 09:37:26,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-15 09:37:26,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-15 09:37:26,269 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 09:37:26,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-15 09:37:26,269 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 934 [2021-12-15 09:37:26,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:37:26,269 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-15 09:37:26,269 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 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 09:37:26,270 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-15 09:37:26,270 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-15 09:37:26,272 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-15 09:37:26,272 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-12-15 09:37:26,274 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-15 09:37:35,561 INFO L858 garLoopResultBuilder]: For program point L498(lines 498 509) no Hoare annotation was computed. [2021-12-15 09:37:35,562 INFO L858 garLoopResultBuilder]: For program point L432(lines 432 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,562 INFO L858 garLoopResultBuilder]: For program point L498-2(lines 498 509) no Hoare annotation was computed. [2021-12-15 09:37:35,562 INFO L858 garLoopResultBuilder]: For program point L168-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:35,562 INFO L858 garLoopResultBuilder]: For program point L102-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:35,562 INFO L858 garLoopResultBuilder]: For program point L36-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:35,562 INFO L858 garLoopResultBuilder]: For program point L1027(lines 1027 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,562 INFO L858 garLoopResultBuilder]: For program point L631(lines 631 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,562 INFO L858 garLoopResultBuilder]: For program point L565(lines 565 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,562 INFO L858 garLoopResultBuilder]: For program point L169(line 169) no Hoare annotation was computed. [2021-12-15 09:37:35,562 INFO L858 garLoopResultBuilder]: For program point L103(line 103) no Hoare annotation was computed. [2021-12-15 09:37:35,562 INFO L858 garLoopResultBuilder]: For program point L37(line 37) no Hoare annotation was computed. [2021-12-15 09:37:35,562 INFO L858 garLoopResultBuilder]: For program point L896(lines 896 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,562 INFO L858 garLoopResultBuilder]: For program point L698(lines 698 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,562 INFO L858 garLoopResultBuilder]: For program point L368(lines 368 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,563 INFO L858 garLoopResultBuilder]: For program point L963(lines 963 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,563 INFO L858 garLoopResultBuilder]: For program point L237(lines 237 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,563 INFO L858 garLoopResultBuilder]: For program point L171-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:35,563 INFO L858 garLoopResultBuilder]: For program point L105-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:35,563 INFO L858 garLoopResultBuilder]: For program point L39-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:35,563 INFO L858 garLoopResultBuilder]: For program point L832(lines 832 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,563 INFO L858 garLoopResultBuilder]: For program point L304(lines 304 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,563 INFO L858 garLoopResultBuilder]: For program point L172(line 172) no Hoare annotation was computed. [2021-12-15 09:37:35,563 INFO L858 garLoopResultBuilder]: For program point L106(line 106) no Hoare annotation was computed. [2021-12-15 09:37:35,563 INFO L858 garLoopResultBuilder]: For program point L40(line 40) no Hoare annotation was computed. [2021-12-15 09:37:35,563 INFO L858 garLoopResultBuilder]: For program point L767(lines 767 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,563 INFO L858 garLoopResultBuilder]: For program point L768(lines 768 778) no Hoare annotation was computed. [2021-12-15 09:37:35,563 INFO L858 garLoopResultBuilder]: For program point L768-2(lines 768 778) no Hoare annotation was computed. [2021-12-15 09:37:35,564 INFO L858 garLoopResultBuilder]: For program point L174-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:35,564 INFO L858 garLoopResultBuilder]: For program point L108-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:35,564 INFO L858 garLoopResultBuilder]: For program point L42-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:35,564 INFO L858 garLoopResultBuilder]: For program point L835(lines 835 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,564 INFO L858 garLoopResultBuilder]: For program point L571(lines 571 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,564 INFO L858 garLoopResultBuilder]: For program point L439(lines 439 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,564 INFO L858 garLoopResultBuilder]: For program point L175(line 175) no Hoare annotation was computed. [2021-12-15 09:37:35,564 INFO L858 garLoopResultBuilder]: For program point L109(line 109) no Hoare annotation was computed. [2021-12-15 09:37:35,564 INFO L858 garLoopResultBuilder]: For program point L43(line 43) no Hoare annotation was computed. [2021-12-15 09:37:35,564 INFO L858 garLoopResultBuilder]: For program point L968(lines 968 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,564 INFO L858 garLoopResultBuilder]: For program point L704(lines 704 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,564 INFO L858 garLoopResultBuilder]: For program point L638(lines 638 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,564 INFO L854 garLoopResultBuilder]: At program point L1035(lines 32 1036) the Hoare annotation is: (let ((.cse0 (= ~a25~0 9)) (.cse8 (<= ~a29~0 130)) (.cse10 (< 306 ~a23~0)) (.cse9 (<= ~a25~0 10)) (.cse6 (= ~a25~0 13)) (.cse11 (<= (div (div ~a23~0 5) 5) 127750)) (.cse5 (<= 141 ~a29~0)) (.cse4 (= ~a25~0 12)) (.cse1 (<= ~a23~0 312)) (.cse2 (= ~a4~0 1)) (.cse3 (= 0 ~a4~0)) (.cse12 (= ~a25~0 11)) (.cse7 (<= ~a23~0 138))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse4 .cse5) (and .cse6 .cse7 .cse2) (and .cse3 .cse6 .cse7) (and .cse0 .cse8 .cse2) (and .cse1 .cse6 .cse8 .cse2) (and .cse9 .cse5 .cse2) (and .cse6 .cse10 .cse11 .cse2) (and .cse9 .cse10 .cse11 .cse2) (and .cse3 .cse4 (<= (+ ~a29~0 554036) 0)) (and .cse12 .cse11 .cse5 .cse2) (and (or .cse4 .cse12) .cse11 (<= (+ ~a29~0 28470) 0) .cse2) (and .cse3 .cse9 .cse11) (and .cse7 .cse9 .cse2) (and .cse3 .cse4 .cse11) (and (<= 261 ~a29~0) .cse1 .cse6 .cse2) (and .cse6 .cse5 (<= ~a29~0 245) .cse2) (and .cse4 .cse11 .cse5 .cse2) (and (< 277 ~a29~0) .cse12 .cse2) (and .cse1 .cse4 .cse2) (and .cse1 .cse12 .cse2) (and .cse3 .cse12 .cse7))) [2021-12-15 09:37:35,564 INFO L858 garLoopResultBuilder]: For program point L903(lines 903 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,564 INFO L858 garLoopResultBuilder]: For program point L705(lines 705 715) no Hoare annotation was computed. [2021-12-15 09:37:35,565 INFO L858 garLoopResultBuilder]: For program point L705-2(lines 705 715) no Hoare annotation was computed. [2021-12-15 09:37:35,565 INFO L858 garLoopResultBuilder]: For program point L375(lines 375 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,565 INFO L858 garLoopResultBuilder]: For program point L309(lines 309 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,565 INFO L858 garLoopResultBuilder]: For program point L243(lines 243 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,565 INFO L858 garLoopResultBuilder]: For program point L177-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:35,565 INFO L858 garLoopResultBuilder]: For program point L111-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:35,565 INFO L858 garLoopResultBuilder]: For program point L45-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:35,565 INFO L858 garLoopResultBuilder]: For program point L178(line 178) no Hoare annotation was computed. [2021-12-15 09:37:35,565 INFO L858 garLoopResultBuilder]: For program point L112(line 112) no Hoare annotation was computed. [2021-12-15 09:37:35,565 INFO L858 garLoopResultBuilder]: For program point L46(line 46) no Hoare annotation was computed. [2021-12-15 09:37:35,565 INFO L861 garLoopResultBuilder]: At program point L1038(lines 1038 1054) the Hoare annotation is: true [2021-12-15 09:37:35,565 INFO L858 garLoopResultBuilder]: For program point L576(lines 576 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,565 INFO L858 garLoopResultBuilder]: For program point L510(lines 510 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,565 INFO L858 garLoopResultBuilder]: For program point L180-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:35,565 INFO L858 garLoopResultBuilder]: For program point L114-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:35,565 INFO L858 garLoopResultBuilder]: For program point L48-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:35,565 INFO L858 garLoopResultBuilder]: For program point L973(lines 973 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,566 INFO L858 garLoopResultBuilder]: For program point L841(lines 841 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,566 INFO L858 garLoopResultBuilder]: For program point L181(line 181) no Hoare annotation was computed. [2021-12-15 09:37:35,566 INFO L858 garLoopResultBuilder]: For program point L115(line 115) no Hoare annotation was computed. [2021-12-15 09:37:35,566 INFO L858 garLoopResultBuilder]: For program point L49(line 49) no Hoare annotation was computed. [2021-12-15 09:37:35,566 INFO L858 garLoopResultBuilder]: For program point L908(lines 908 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,566 INFO L858 garLoopResultBuilder]: For program point L446(lines 446 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,566 INFO L858 garLoopResultBuilder]: For program point L380(lines 380 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,566 INFO L858 garLoopResultBuilder]: For program point L645(lines 645 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,566 INFO L858 garLoopResultBuilder]: For program point L315(lines 315 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,566 INFO L858 garLoopResultBuilder]: For program point L183-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:35,566 INFO L858 garLoopResultBuilder]: For program point L117-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:35,567 INFO L858 garLoopResultBuilder]: For program point L51-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:35,567 INFO L858 garLoopResultBuilder]: For program point L250(lines 250 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,567 INFO L858 garLoopResultBuilder]: For program point L184(line 184) no Hoare annotation was computed. [2021-12-15 09:37:35,567 INFO L858 garLoopResultBuilder]: For program point L118(line 118) no Hoare annotation was computed. [2021-12-15 09:37:35,567 INFO L858 garLoopResultBuilder]: For program point L52(line 52) no Hoare annotation was computed. [2021-12-15 09:37:35,567 INFO L858 garLoopResultBuilder]: For program point L779(lines 779 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,567 INFO L854 garLoopResultBuilder]: At program point L1044-2(lines 1044 1053) the Hoare annotation is: (let ((.cse0 (= ~a25~0 9)) (.cse8 (<= ~a29~0 130)) (.cse10 (< 306 ~a23~0)) (.cse9 (<= ~a25~0 10)) (.cse6 (= ~a25~0 13)) (.cse11 (<= (div (div ~a23~0 5) 5) 127750)) (.cse5 (<= 141 ~a29~0)) (.cse4 (= ~a25~0 12)) (.cse1 (<= ~a23~0 312)) (.cse2 (= ~a4~0 1)) (.cse3 (= 0 ~a4~0)) (.cse12 (= ~a25~0 11)) (.cse7 (<= ~a23~0 138))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse4 .cse5) (and .cse6 .cse7 .cse2) (and .cse3 .cse6 .cse7) (and .cse0 .cse8 .cse2) (and .cse1 .cse6 .cse8 .cse2) (and .cse9 .cse5 .cse2) (and .cse6 .cse10 .cse11 .cse2) (and .cse9 .cse10 .cse11 .cse2) (and .cse3 .cse4 (<= (+ ~a29~0 554036) 0)) (and .cse12 .cse11 .cse5 .cse2) (and (or .cse4 .cse12) .cse11 (<= (+ ~a29~0 28470) 0) .cse2) (and .cse3 .cse9 .cse11) (and .cse7 .cse9 .cse2) (and .cse3 .cse4 .cse11) (and (<= 261 ~a29~0) .cse1 .cse6 .cse2) (and .cse6 .cse5 (<= ~a29~0 245) .cse2) (and .cse4 .cse11 .cse5 .cse2) (and (< 277 ~a29~0) .cse12 .cse2) (and .cse1 .cse4 .cse2) (and .cse1 .cse12 .cse2) (and .cse3 .cse12 .cse7))) [2021-12-15 09:37:35,568 INFO L858 garLoopResultBuilder]: For program point L846(lines 846 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,568 INFO L858 garLoopResultBuilder]: For program point L582(lines 582 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,568 INFO L858 garLoopResultBuilder]: For program point L186-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:35,568 INFO L858 garLoopResultBuilder]: For program point L120-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:35,568 INFO L858 garLoopResultBuilder]: For program point L54-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:35,568 INFO L858 garLoopResultBuilder]: For program point L979(lines 979 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,568 INFO L858 garLoopResultBuilder]: For program point L913(lines 913 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,568 INFO L858 garLoopResultBuilder]: For program point L517(lines 517 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,569 INFO L858 garLoopResultBuilder]: For program point L187(line 187) no Hoare annotation was computed. [2021-12-15 09:37:35,569 INFO L858 garLoopResultBuilder]: For program point L121(line 121) no Hoare annotation was computed. [2021-12-15 09:37:35,569 INFO L858 garLoopResultBuilder]: For program point L55(line 55) no Hoare annotation was computed. [2021-12-15 09:37:35,569 INFO L858 garLoopResultBuilder]: For program point L980(lines 980 990) no Hoare annotation was computed. [2021-12-15 09:37:35,569 INFO L858 garLoopResultBuilder]: For program point L914(lines 914 924) no Hoare annotation was computed. [2021-12-15 09:37:35,569 INFO L858 garLoopResultBuilder]: For program point L980-2(lines 980 990) no Hoare annotation was computed. [2021-12-15 09:37:35,569 INFO L858 garLoopResultBuilder]: For program point L914-2(lines 914 924) no Hoare annotation was computed. [2021-12-15 09:37:35,569 INFO L858 garLoopResultBuilder]: For program point L716(lines 716 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,570 INFO L858 garLoopResultBuilder]: For program point L320(lines 320 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,570 INFO L858 garLoopResultBuilder]: For program point L585(lines 585 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,570 INFO L858 garLoopResultBuilder]: For program point L453(lines 453 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,570 INFO L858 garLoopResultBuilder]: For program point L387(lines 387 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,570 INFO L858 garLoopResultBuilder]: For program point L189-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:35,570 INFO L858 garLoopResultBuilder]: For program point L123-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:35,570 INFO L858 garLoopResultBuilder]: For program point L57-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:35,570 INFO L858 garLoopResultBuilder]: For program point L784(lines 784 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,571 INFO L858 garLoopResultBuilder]: For program point L652(lines 652 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,571 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-15 09:37:35,571 INFO L858 garLoopResultBuilder]: For program point L190(line 190) no Hoare annotation was computed. [2021-12-15 09:37:35,571 INFO L858 garLoopResultBuilder]: For program point L124(line 124) no Hoare annotation was computed. [2021-12-15 09:37:35,571 INFO L858 garLoopResultBuilder]: For program point L58(line 58) no Hoare annotation was computed. [2021-12-15 09:37:35,571 INFO L858 garLoopResultBuilder]: For program point L1049(line 1049) no Hoare annotation was computed. [2021-12-15 09:37:35,571 INFO L858 garLoopResultBuilder]: For program point L851(lines 851 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,572 INFO L858 garLoopResultBuilder]: For program point L257(lines 257 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,572 INFO L858 garLoopResultBuilder]: For program point L192-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:35,572 INFO L858 garLoopResultBuilder]: For program point L126-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:35,572 INFO L858 garLoopResultBuilder]: For program point L60-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:35,572 INFO L858 garLoopResultBuilder]: For program point L193(line 193) no Hoare annotation was computed. [2021-12-15 09:37:35,572 INFO L858 garLoopResultBuilder]: For program point L127(line 127) no Hoare annotation was computed. [2021-12-15 09:37:35,572 INFO L858 garLoopResultBuilder]: For program point L61(line 61) no Hoare annotation was computed. [2021-12-15 09:37:35,572 INFO L858 garLoopResultBuilder]: For program point L722(lines 722 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,573 INFO L858 garLoopResultBuilder]: For program point L524(lines 524 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,573 INFO L858 garLoopResultBuilder]: For program point L657(lines 657 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,573 INFO L858 garLoopResultBuilder]: For program point L591(lines 591 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,573 INFO L858 garLoopResultBuilder]: For program point L525(lines 525 535) no Hoare annotation was computed. [2021-12-15 09:37:35,573 INFO L858 garLoopResultBuilder]: For program point L525-2(lines 525 535) no Hoare annotation was computed. [2021-12-15 09:37:35,573 INFO L858 garLoopResultBuilder]: For program point L327(lines 327 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,573 INFO L858 garLoopResultBuilder]: For program point L195-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:35,573 INFO L858 garLoopResultBuilder]: For program point L129-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:35,574 INFO L858 garLoopResultBuilder]: For program point L63-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:35,574 INFO L858 garLoopResultBuilder]: For program point L856(lines 856 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,574 INFO L858 garLoopResultBuilder]: For program point L790(lines 790 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,574 INFO L858 garLoopResultBuilder]: For program point L658(lines 658 667) no Hoare annotation was computed. [2021-12-15 09:37:35,574 INFO L858 garLoopResultBuilder]: For program point L658-2(lines 658 667) no Hoare annotation was computed. [2021-12-15 09:37:35,574 INFO L858 garLoopResultBuilder]: For program point L460(lines 460 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,574 INFO L858 garLoopResultBuilder]: For program point L394(lines 394 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,574 INFO L858 garLoopResultBuilder]: For program point L196(line 196) no Hoare annotation was computed. [2021-12-15 09:37:35,575 INFO L858 garLoopResultBuilder]: For program point L130(line 130) no Hoare annotation was computed. [2021-12-15 09:37:35,575 INFO L858 garLoopResultBuilder]: For program point L64(line 64) no Hoare annotation was computed. [2021-12-15 09:37:35,575 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-15 09:37:35,575 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 148) no Hoare annotation was computed. [2021-12-15 09:37:35,575 INFO L858 garLoopResultBuilder]: For program point L264(lines 264 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,575 INFO L858 garLoopResultBuilder]: For program point L198-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:35,575 INFO L858 garLoopResultBuilder]: For program point L132-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:35,576 INFO L858 garLoopResultBuilder]: For program point L66-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:35,576 INFO L858 garLoopResultBuilder]: For program point L991(lines 991 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,576 INFO L858 garLoopResultBuilder]: For program point L925(lines 925 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,576 INFO L858 garLoopResultBuilder]: For program point L727(lines 727 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,576 INFO L858 garLoopResultBuilder]: For program point L199(line 199) no Hoare annotation was computed. [2021-12-15 09:37:35,576 INFO L858 garLoopResultBuilder]: For program point L133(line 133) no Hoare annotation was computed. [2021-12-15 09:37:35,576 INFO L858 garLoopResultBuilder]: For program point L67(line 67) no Hoare annotation was computed. [2021-12-15 09:37:35,577 INFO L858 garLoopResultBuilder]: For program point L926(lines 926 936) no Hoare annotation was computed. [2021-12-15 09:37:35,577 INFO L858 garLoopResultBuilder]: For program point L926-2(lines 926 936) no Hoare annotation was computed. [2021-12-15 09:37:35,577 INFO L858 garLoopResultBuilder]: For program point L728(lines 728 740) no Hoare annotation was computed. [2021-12-15 09:37:35,577 INFO L858 garLoopResultBuilder]: For program point L728-2(lines 728 740) no Hoare annotation was computed. [2021-12-15 09:37:35,577 INFO L858 garLoopResultBuilder]: For program point L596(lines 596 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,577 INFO L858 garLoopResultBuilder]: For program point L332(lines 332 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,577 INFO L858 garLoopResultBuilder]: For program point L597(lines 597 607) no Hoare annotation was computed. [2021-12-15 09:37:35,577 INFO L858 garLoopResultBuilder]: For program point L597-2(lines 597 607) no Hoare annotation was computed. [2021-12-15 09:37:35,578 INFO L858 garLoopResultBuilder]: For program point L201-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:35,578 INFO L858 garLoopResultBuilder]: For program point L135-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:35,578 INFO L858 garLoopResultBuilder]: For program point L69-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:35,578 INFO L858 garLoopResultBuilder]: For program point L862(lines 862 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,578 INFO L858 garLoopResultBuilder]: For program point L466(lines 466 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,578 INFO L858 garLoopResultBuilder]: For program point L202(line 202) no Hoare annotation was computed. [2021-12-15 09:37:35,578 INFO L858 garLoopResultBuilder]: For program point L136(line 136) no Hoare annotation was computed. [2021-12-15 09:37:35,578 INFO L858 garLoopResultBuilder]: For program point L70(line 70) no Hoare annotation was computed. [2021-12-15 09:37:35,579 INFO L858 garLoopResultBuilder]: For program point L797(lines 797 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,579 INFO L858 garLoopResultBuilder]: For program point L401(lines 401 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,579 INFO L858 garLoopResultBuilder]: For program point L270(lines 270 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,579 INFO L858 garLoopResultBuilder]: For program point L204-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:35,579 INFO L858 garLoopResultBuilder]: For program point L138-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:35,579 INFO L858 garLoopResultBuilder]: For program point L72-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:35,579 INFO L858 garLoopResultBuilder]: For program point L205(line 205) no Hoare annotation was computed. [2021-12-15 09:37:35,579 INFO L858 garLoopResultBuilder]: For program point L139(line 139) no Hoare annotation was computed. [2021-12-15 09:37:35,580 INFO L858 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2021-12-15 09:37:35,580 INFO L858 garLoopResultBuilder]: For program point L998(lines 998 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,580 INFO L858 garLoopResultBuilder]: For program point L668(lines 668 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,580 INFO L858 garLoopResultBuilder]: For program point L536(lines 536 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,580 INFO L858 garLoopResultBuilder]: For program point L339(lines 339 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,580 INFO L858 garLoopResultBuilder]: For program point L207-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:35,580 INFO L858 garLoopResultBuilder]: For program point L141-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:35,581 INFO L858 garLoopResultBuilder]: For program point L75-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:35,581 INFO L858 garLoopResultBuilder]: For program point L802(lines 802 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,581 INFO L858 garLoopResultBuilder]: For program point L208(line 208) no Hoare annotation was computed. [2021-12-15 09:37:35,581 INFO L858 garLoopResultBuilder]: For program point L142(line 142) no Hoare annotation was computed. [2021-12-15 09:37:35,581 INFO L858 garLoopResultBuilder]: For program point L76(line 76) no Hoare annotation was computed. [2021-12-15 09:37:35,581 INFO L858 garLoopResultBuilder]: For program point L869(lines 869 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,581 INFO L858 garLoopResultBuilder]: For program point L473(lines 473 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,581 INFO L858 garLoopResultBuilder]: For program point L275(lines 275 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,582 INFO L858 garLoopResultBuilder]: For program point L408(lines 408 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,582 INFO L858 garLoopResultBuilder]: For program point L210-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:35,582 INFO L858 garLoopResultBuilder]: For program point L144-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:35,582 INFO L858 garLoopResultBuilder]: For program point L78-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:35,582 INFO L858 garLoopResultBuilder]: For program point L1003(lines 1003 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,582 INFO L858 garLoopResultBuilder]: For program point L937(lines 937 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,582 INFO L858 garLoopResultBuilder]: For program point L673(lines 673 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,583 INFO L858 garLoopResultBuilder]: For program point L541(lines 541 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,583 INFO L858 garLoopResultBuilder]: For program point L409(lines 409 420) no Hoare annotation was computed. [2021-12-15 09:37:35,583 INFO L858 garLoopResultBuilder]: For program point L409-2(lines 409 420) no Hoare annotation was computed. [2021-12-15 09:37:35,583 INFO L858 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2021-12-15 09:37:35,583 INFO L858 garLoopResultBuilder]: For program point L145(line 145) no Hoare annotation was computed. [2021-12-15 09:37:35,583 INFO L858 garLoopResultBuilder]: For program point L79(line 79) no Hoare annotation was computed. [2021-12-15 09:37:35,583 INFO L858 garLoopResultBuilder]: For program point L608(lines 608 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,583 INFO L858 garLoopResultBuilder]: For program point L344(lines 344 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,584 INFO L858 garLoopResultBuilder]: For program point L278(lines 278 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,584 INFO L858 garLoopResultBuilder]: For program point L741(lines 741 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,584 INFO L858 garLoopResultBuilder]: For program point L213-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:35,584 INFO L858 garLoopResultBuilder]: For program point L147-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:35,584 INFO L858 garLoopResultBuilder]: For program point L81-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:35,584 INFO L858 garLoopResultBuilder]: For program point L214(line 214) no Hoare annotation was computed. [2021-12-15 09:37:35,584 INFO L858 garLoopResultBuilder]: For program point L148(line 148) no Hoare annotation was computed. [2021-12-15 09:37:35,584 INFO L858 garLoopResultBuilder]: For program point L82(line 82) no Hoare annotation was computed. [2021-12-15 09:37:35,585 INFO L858 garLoopResultBuilder]: For program point L875(lines 875 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,585 INFO L858 garLoopResultBuilder]: For program point L809(lines 809 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,585 INFO L858 garLoopResultBuilder]: For program point L942(lines 942 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,585 INFO L858 garLoopResultBuilder]: For program point L876(lines 876 885) no Hoare annotation was computed. [2021-12-15 09:37:35,585 INFO L858 garLoopResultBuilder]: For program point L876-2(lines 876 885) no Hoare annotation was computed. [2021-12-15 09:37:35,585 INFO L858 garLoopResultBuilder]: For program point L480(lines 480 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,585 INFO L858 garLoopResultBuilder]: For program point L150-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:35,586 INFO L858 garLoopResultBuilder]: For program point L84-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:35,586 INFO L858 garLoopResultBuilder]: For program point L613(lines 613 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,586 INFO L858 garLoopResultBuilder]: For program point L547(lines 547 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,586 INFO L858 garLoopResultBuilder]: For program point L151(line 151) no Hoare annotation was computed. [2021-12-15 09:37:35,586 INFO L858 garLoopResultBuilder]: For program point L85(line 85) no Hoare annotation was computed. [2021-12-15 09:37:35,586 INFO L858 garLoopResultBuilder]: For program point L1010(lines 1010 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,586 INFO L858 garLoopResultBuilder]: For program point L680(lines 680 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,586 INFO L858 garLoopResultBuilder]: For program point L614(lines 614 624) no Hoare annotation was computed. [2021-12-15 09:37:35,587 INFO L858 garLoopResultBuilder]: For program point L614-2(lines 614 624) no Hoare annotation was computed. [2021-12-15 09:37:35,587 INFO L858 garLoopResultBuilder]: For program point L350(lines 350 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,587 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-15 09:37:35,587 INFO L858 garLoopResultBuilder]: For program point L285(lines 285 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,587 INFO L858 garLoopResultBuilder]: For program point L153-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:35,587 INFO L858 garLoopResultBuilder]: For program point L87-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:35,587 INFO L858 garLoopResultBuilder]: For program point L814(lines 814 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,587 INFO L858 garLoopResultBuilder]: For program point L748(lines 748 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,588 INFO L858 garLoopResultBuilder]: For program point L154(line 154) no Hoare annotation was computed. [2021-12-15 09:37:35,588 INFO L858 garLoopResultBuilder]: For program point L88(line 88) no Hoare annotation was computed. [2021-12-15 09:37:35,588 INFO L858 garLoopResultBuilder]: For program point L815(lines 815 825) no Hoare annotation was computed. [2021-12-15 09:37:35,588 INFO L858 garLoopResultBuilder]: For program point L815-2(lines 815 825) no Hoare annotation was computed. [2021-12-15 09:37:35,588 INFO L858 garLoopResultBuilder]: For program point L552(lines 552 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,588 INFO L858 garLoopResultBuilder]: For program point L156-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:35,588 INFO L858 garLoopResultBuilder]: For program point L90-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:35,588 INFO L858 garLoopResultBuilder]: For program point L1015(lines 1015 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,589 INFO L858 garLoopResultBuilder]: For program point L949(lines 949 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,589 INFO L858 garLoopResultBuilder]: For program point L685(lines 685 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,589 INFO L858 garLoopResultBuilder]: For program point L487(lines 487 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,589 INFO L858 garLoopResultBuilder]: For program point L421(lines 421 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,589 INFO L858 garLoopResultBuilder]: For program point L157(line 157) no Hoare annotation was computed. [2021-12-15 09:37:35,589 INFO L858 garLoopResultBuilder]: For program point L91(line 91) no Hoare annotation was computed. [2021-12-15 09:37:35,589 INFO L858 garLoopResultBuilder]: For program point L950(lines 950 962) no Hoare annotation was computed. [2021-12-15 09:37:35,589 INFO L858 garLoopResultBuilder]: For program point L950-2(lines 950 962) no Hoare annotation was computed. [2021-12-15 09:37:35,590 INFO L858 garLoopResultBuilder]: For program point L488(lines 488 496) no Hoare annotation was computed. [2021-12-15 09:37:35,590 INFO L858 garLoopResultBuilder]: For program point L488-2(lines 488 496) no Hoare annotation was computed. [2021-12-15 09:37:35,590 INFO L858 garLoopResultBuilder]: For program point L356(lines 356 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,590 INFO L858 garLoopResultBuilder]: For program point L290(lines 290 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,590 INFO L858 garLoopResultBuilder]: For program point L224(lines 224 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,590 INFO L858 garLoopResultBuilder]: For program point L753(lines 753 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,590 INFO L858 garLoopResultBuilder]: For program point L159-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:35,591 INFO L858 garLoopResultBuilder]: For program point L93-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:35,591 INFO L858 garLoopResultBuilder]: For program point L886(lines 886 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,591 INFO L858 garLoopResultBuilder]: For program point L160(line 160) no Hoare annotation was computed. [2021-12-15 09:37:35,591 INFO L858 garLoopResultBuilder]: For program point L94(line 94) no Hoare annotation was computed. [2021-12-15 09:37:35,591 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-15 09:37:35,591 INFO L858 garLoopResultBuilder]: For program point L162-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:35,591 INFO L858 garLoopResultBuilder]: For program point L96-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:35,591 INFO L858 garLoopResultBuilder]: For program point L691(lines 691 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,592 INFO L858 garLoopResultBuilder]: For program point L625(lines 625 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,592 INFO L858 garLoopResultBuilder]: For program point L559(lines 559 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,592 INFO L858 garLoopResultBuilder]: For program point L427(lines 427 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,592 INFO L858 garLoopResultBuilder]: For program point L163(line 163) no Hoare annotation was computed. [2021-12-15 09:37:35,592 INFO L858 garLoopResultBuilder]: For program point L97(line 97) no Hoare annotation was computed. [2021-12-15 09:37:35,592 INFO L858 garLoopResultBuilder]: For program point L1022(lines 1022 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,592 INFO L858 garLoopResultBuilder]: For program point L891(lines 891 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,593 INFO L858 garLoopResultBuilder]: For program point L363(lines 363 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,593 INFO L858 garLoopResultBuilder]: For program point L297(lines 297 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,593 INFO L858 garLoopResultBuilder]: For program point L231(lines 231 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,593 INFO L858 garLoopResultBuilder]: For program point L165-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:35,593 INFO L858 garLoopResultBuilder]: For program point L99-1(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:35,593 INFO L858 garLoopResultBuilder]: For program point L33(lines 33 35) no Hoare annotation was computed. [2021-12-15 09:37:35,593 INFO L858 garLoopResultBuilder]: For program point L33-2(lines 32 1036) no Hoare annotation was computed. [2021-12-15 09:37:35,593 INFO L858 garLoopResultBuilder]: For program point L826(lines 826 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,593 INFO L858 garLoopResultBuilder]: For program point L760(lines 760 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,594 INFO L858 garLoopResultBuilder]: For program point L166(line 166) no Hoare annotation was computed. [2021-12-15 09:37:35,594 INFO L858 garLoopResultBuilder]: For program point L100(line 100) no Hoare annotation was computed. [2021-12-15 09:37:35,594 INFO L858 garLoopResultBuilder]: For program point L34(line 34) no Hoare annotation was computed. [2021-12-15 09:37:35,594 INFO L858 garLoopResultBuilder]: For program point L497(lines 497 1034) no Hoare annotation was computed. [2021-12-15 09:37:35,597 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 09:37:35,598 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-15 09:37:35,617 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 09:37:35 BoogieIcfgContainer [2021-12-15 09:37:35,617 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-15 09:37:35,618 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-15 09:37:35,618 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-15 09:37:35,619 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-15 09:37:35,619 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 09:36:48" (3/4) ... [2021-12-15 09:37:35,622 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-15 09:37:35,656 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-12-15 09:37:35,657 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-15 09:37:35,658 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-15 09:37:35,659 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-15 09:37:35,776 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-15 09:37:35,777 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-15 09:37:35,777 INFO L158 Benchmark]: Toolchain (without parser) took 49829.10ms. Allocated memory was 94.4MB in the beginning and 1.6GB in the end (delta: 1.5GB). Free memory was 63.2MB in the beginning and 1.4GB in the end (delta: -1.3GB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. [2021-12-15 09:37:35,778 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 77.6MB. Free memory was 43.9MB in the beginning and 43.8MB in the end (delta: 44.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 09:37:35,778 INFO L158 Benchmark]: CACSL2BoogieTranslator took 678.27ms. Allocated memory is still 94.4MB. Free memory was 63.0MB in the beginning and 49.7MB in the end (delta: 13.3MB). Peak memory consumption was 30.1MB. Max. memory is 16.1GB. [2021-12-15 09:37:35,778 INFO L158 Benchmark]: Boogie Procedure Inliner took 157.16ms. Allocated memory is still 94.4MB. Free memory was 49.7MB in the beginning and 60.1MB in the end (delta: -10.4MB). Peak memory consumption was 18.5MB. Max. memory is 16.1GB. [2021-12-15 09:37:35,779 INFO L158 Benchmark]: Boogie Preprocessor took 121.25ms. Allocated memory is still 94.4MB. Free memory was 60.1MB in the beginning and 50.8MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-15 09:37:35,779 INFO L158 Benchmark]: RCFGBuilder took 1361.27ms. Allocated memory was 94.4MB in the beginning and 134.2MB in the end (delta: 39.8MB). Free memory was 50.8MB in the beginning and 54.8MB in the end (delta: -4.0MB). Peak memory consumption was 39.7MB. Max. memory is 16.1GB. [2021-12-15 09:37:35,781 INFO L158 Benchmark]: TraceAbstraction took 47344.76ms. Allocated memory was 134.2MB in the beginning and 1.6GB in the end (delta: 1.4GB). Free memory was 54.0MB in the beginning and 454.6MB in the end (delta: -400.6MB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. [2021-12-15 09:37:35,782 INFO L158 Benchmark]: Witness Printer took 158.64ms. Allocated memory is still 1.6GB. Free memory was 453.6MB in the beginning and 1.4GB in the end (delta: -922.7MB). Peak memory consumption was 3.2MB. Max. memory is 16.1GB. [2021-12-15 09:37:35,792 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 77.6MB. Free memory was 43.9MB in the beginning and 43.8MB in the end (delta: 44.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 678.27ms. Allocated memory is still 94.4MB. Free memory was 63.0MB in the beginning and 49.7MB in the end (delta: 13.3MB). Peak memory consumption was 30.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 157.16ms. Allocated memory is still 94.4MB. Free memory was 49.7MB in the beginning and 60.1MB in the end (delta: -10.4MB). Peak memory consumption was 18.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 121.25ms. Allocated memory is still 94.4MB. Free memory was 60.1MB in the beginning and 50.8MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * RCFGBuilder took 1361.27ms. Allocated memory was 94.4MB in the beginning and 134.2MB in the end (delta: 39.8MB). Free memory was 50.8MB in the beginning and 54.8MB in the end (delta: -4.0MB). Peak memory consumption was 39.7MB. Max. memory is 16.1GB. * TraceAbstraction took 47344.76ms. Allocated memory was 134.2MB in the beginning and 1.6GB in the end (delta: 1.4GB). Free memory was 54.0MB in the beginning and 454.6MB in the end (delta: -400.6MB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. * Witness Printer took 158.64ms. Allocated memory is still 1.6GB. Free memory was 453.6MB in the beginning and 1.4GB in the end (delta: -922.7MB). Peak memory consumption was 3.2MB. 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: 148]: 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, 283 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 47.3s, OverallIterations: 25, TraceHistogramMax: 9, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.3s, AutomataDifference: 20.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 9.3s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3990 SdHoareTripleChecker+Valid, 17.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3990 mSDsluCounter, 5871 SdHoareTripleChecker+Invalid, 14.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 655 mSDsCounter, 2587 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 16379 IncrementalHoareTripleChecker+Invalid, 18966 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2587 mSolverCounterUnsat, 5216 mSDtfsCounter, 16379 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3531 GetRequests, 3473 SyntacticMatches, 1 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20518occurred in iteration=22, InterpolantAutomatonStates: 82, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.3s AutomataMinimizationTime, 25 MinimizatonAttempts, 22039 StatesRemovedByMinimization, 22 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 225 NumberOfFragments, 563 HoareAnnotationTreeSize, 3 FomulaSimplifications, 10882 FormulaSimplificationTreeSizeReduction, 5.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 75206 FormulaSimplificationTreeSizeReductionInter, 4.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 1.8s SatisfiabilityAnalysisTime, 10.0s InterpolantComputationTime, 14067 NumberOfCodeBlocks, 14067 NumberOfCodeBlocksAsserted, 30 NumberOfCheckSat, 14282 ConstructedInterpolants, 0 QuantifiedInterpolants, 46070 SizeOfPredicates, 0 NumberOfNonLiveVariables, 4203 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 31 InterpolantComputations, 25 PerfectInterpolantSequences, 25958/27321 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: 1044]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((a25 == 9 && a23 <= 312) && a4 == 1) || ((0 == a4 && a25 == 12) && 141 <= a29)) || ((a25 == 13 && a23 <= 138) && a4 == 1)) || ((0 == a4 && a25 == 13) && a23 <= 138)) || ((a25 == 9 && a29 <= 130) && a4 == 1)) || (((a23 <= 312 && a25 == 13) && a29 <= 130) && a4 == 1)) || ((a25 <= 10 && 141 <= a29) && a4 == 1)) || (((a25 == 13 && 306 < a23) && a23 / 5 / 5 <= 127750) && a4 == 1)) || (((a25 <= 10 && 306 < a23) && a23 / 5 / 5 <= 127750) && a4 == 1)) || ((0 == a4 && a25 == 12) && a29 + 554036 <= 0)) || (((a25 == 11 && a23 / 5 / 5 <= 127750) && 141 <= a29) && a4 == 1)) || ((((a25 == 12 || a25 == 11) && a23 / 5 / 5 <= 127750) && a29 + 28470 <= 0) && a4 == 1)) || ((0 == a4 && a25 <= 10) && a23 / 5 / 5 <= 127750)) || ((a23 <= 138 && a25 <= 10) && a4 == 1)) || ((0 == a4 && a25 == 12) && a23 / 5 / 5 <= 127750)) || (((261 <= a29 && a23 <= 312) && a25 == 13) && a4 == 1)) || (((a25 == 13 && 141 <= a29) && a29 <= 245) && a4 == 1)) || (((a25 == 12 && a23 / 5 / 5 <= 127750) && 141 <= a29) && a4 == 1)) || ((277 < a29 && a25 == 11) && a4 == 1)) || ((a23 <= 312 && a25 == 12) && a4 == 1)) || ((a23 <= 312 && a25 == 11) && a4 == 1)) || ((0 == a4 && a25 == 11) && a23 <= 138) - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((a25 == 9 && a23 <= 312) && a4 == 1) || ((0 == a4 && a25 == 12) && 141 <= a29)) || ((a25 == 13 && a23 <= 138) && a4 == 1)) || ((0 == a4 && a25 == 13) && a23 <= 138)) || ((a25 == 9 && a29 <= 130) && a4 == 1)) || (((a23 <= 312 && a25 == 13) && a29 <= 130) && a4 == 1)) || ((a25 <= 10 && 141 <= a29) && a4 == 1)) || (((a25 == 13 && 306 < a23) && a23 / 5 / 5 <= 127750) && a4 == 1)) || (((a25 <= 10 && 306 < a23) && a23 / 5 / 5 <= 127750) && a4 == 1)) || ((0 == a4 && a25 == 12) && a29 + 554036 <= 0)) || (((a25 == 11 && a23 / 5 / 5 <= 127750) && 141 <= a29) && a4 == 1)) || ((((a25 == 12 || a25 == 11) && a23 / 5 / 5 <= 127750) && a29 + 28470 <= 0) && a4 == 1)) || ((0 == a4 && a25 <= 10) && a23 / 5 / 5 <= 127750)) || ((a23 <= 138 && a25 <= 10) && a4 == 1)) || ((0 == a4 && a25 == 12) && a23 / 5 / 5 <= 127750)) || (((261 <= a29 && a23 <= 312) && a25 == 13) && a4 == 1)) || (((a25 == 13 && 141 <= a29) && a29 <= 245) && a4 == 1)) || (((a25 == 12 && a23 / 5 / 5 <= 127750) && 141 <= a29) && a4 == 1)) || ((277 < a29 && a25 == 11) && a4 == 1)) || ((a23 <= 312 && a25 == 12) && a4 == 1)) || ((a23 <= 312 && a25 == 11) && a4 == 1)) || ((0 == a4 && a25 == 11) && a23 <= 138) - InvariantResult [Line: 1038]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-12-15 09:37:35,817 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