./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem14_label45.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 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/Problem14_label45.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 d284e8efd4e45ee6ae258c3b376fc8f91ce52940016142658227b0ca393b3ff2 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 13:00:49,618 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 13:00:49,620 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 13:00:49,645 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 13:00:49,645 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 13:00:49,646 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 13:00:49,647 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 13:00:49,648 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 13:00:49,649 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 13:00:49,650 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 13:00:49,650 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 13:00:49,651 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 13:00:49,652 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 13:00:49,652 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 13:00:49,653 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 13:00:49,654 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 13:00:49,654 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 13:00:49,655 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 13:00:49,656 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 13:00:49,657 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 13:00:49,658 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 13:00:49,659 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 13:00:49,660 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 13:00:49,660 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 13:00:49,661 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 13:00:49,663 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 13:00:49,663 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 13:00:49,663 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 13:00:49,664 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 13:00:49,664 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 13:00:49,665 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 13:00:49,665 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 13:00:49,666 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 13:00:49,666 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 13:00:49,667 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 13:00:49,668 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 13:00:49,668 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 13:00:49,669 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 13:00:49,669 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 13:00:49,669 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 13:00:49,670 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 13:00:49,671 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 13:00:49,672 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-13 13:00:49,697 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 13:00:49,698 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 13:00:49,698 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 13:00:49,698 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 13:00:49,699 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 13:00:49,699 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 13:00:49,700 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 13:00:49,700 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 13:00:49,700 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 13:00:49,701 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 13:00:49,701 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 13:00:49,701 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 13:00:49,701 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 13:00:49,701 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 13:00:49,702 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 13:00:49,702 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 13:00:49,702 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 13:00:49,702 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 13:00:49,702 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 13:00:49,703 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 13:00:49,703 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 13:00:49,704 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 13:00:49,704 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 13:00:49,704 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 13:00:49,704 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 13:00:49,704 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 13:00:49,705 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 13:00:49,705 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 13:00:49,705 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 13:00:49,705 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 13:00:49,705 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 13:00:49,705 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 13:00:49,705 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 13:00:49,706 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d284e8efd4e45ee6ae258c3b376fc8f91ce52940016142658227b0ca393b3ff2 [2022-07-13 13:00:49,889 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 13:00:49,914 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 13:00:49,916 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 13:00:49,917 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 13:00:49,918 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 13:00:49,918 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem14_label45.c [2022-07-13 13:00:49,965 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf723e0c0/98ceed74abcf4b9cb4c6c74858e72391/FLAGe17bcef1a [2022-07-13 13:00:50,394 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 13:00:50,395 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label45.c [2022-07-13 13:00:50,420 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf723e0c0/98ceed74abcf4b9cb4c6c74858e72391/FLAGe17bcef1a [2022-07-13 13:00:50,438 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf723e0c0/98ceed74abcf4b9cb4c6c74858e72391 [2022-07-13 13:00:50,440 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 13:00:50,441 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 13:00:50,452 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 13:00:50,452 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 13:00:50,454 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 13:00:50,455 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 01:00:50" (1/1) ... [2022-07-13 13:00:50,455 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63cf242 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:00:50, skipping insertion in model container [2022-07-13 13:00:50,456 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 01:00:50" (1/1) ... [2022-07-13 13:00:50,461 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 13:00:50,501 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 13:00:50,631 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/Problem14_label45.c[3828,3841] [2022-07-13 13:00:50,788 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 13:00:50,795 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 13:00:50,812 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/Problem14_label45.c[3828,3841] [2022-07-13 13:00:50,890 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 13:00:50,913 INFO L208 MainTranslator]: Completed translation [2022-07-13 13:00:50,913 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:00:50 WrapperNode [2022-07-13 13:00:50,913 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 13:00:50,915 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 13:00:50,915 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 13:00:50,915 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 13:00:50,920 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:00:50" (1/1) ... [2022-07-13 13:00:50,941 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:00:50" (1/1) ... [2022-07-13 13:00:51,024 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 858 [2022-07-13 13:00:51,025 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 13:00:51,026 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 13:00:51,026 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 13:00:51,026 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 13:00:51,032 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:00:50" (1/1) ... [2022-07-13 13:00:51,033 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:00:50" (1/1) ... [2022-07-13 13:00:51,042 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:00:50" (1/1) ... [2022-07-13 13:00:51,042 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:00:50" (1/1) ... [2022-07-13 13:00:51,068 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:00:50" (1/1) ... [2022-07-13 13:00:51,081 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:00:50" (1/1) ... [2022-07-13 13:00:51,097 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:00:50" (1/1) ... [2022-07-13 13:00:51,105 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 13:00:51,106 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 13:00:51,106 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 13:00:51,107 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 13:00:51,108 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:00:50" (1/1) ... [2022-07-13 13:00:51,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 13:00:51,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 13:00:51,131 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-13 13:00:51,132 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-13 13:00:51,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 13:00:51,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 13:00:51,173 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 13:00:51,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 13:00:51,219 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 13:00:51,220 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 13:00:52,061 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 13:00:52,068 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 13:00:52,069 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-13 13:00:52,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 01:00:52 BoogieIcfgContainer [2022-07-13 13:00:52,070 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 13:00:52,071 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 13:00:52,071 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 13:00:52,074 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 13:00:52,074 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 01:00:50" (1/3) ... [2022-07-13 13:00:52,074 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bb11230 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 01:00:52, skipping insertion in model container [2022-07-13 13:00:52,074 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:00:50" (2/3) ... [2022-07-13 13:00:52,075 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bb11230 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 01:00:52, skipping insertion in model container [2022-07-13 13:00:52,075 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 01:00:52" (3/3) ... [2022-07-13 13:00:52,076 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label45.c [2022-07-13 13:00:52,086 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 13:00:52,086 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-13 13:00:52,140 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 13:00:52,145 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@56e00c5b, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@22b6f73c [2022-07-13 13:00:52,145 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-13 13:00:52,149 INFO L276 IsEmpty]: Start isEmpty. Operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 13:00:52,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-07-13 13:00:52,154 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 13:00:52,155 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 13:00:52,155 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 13:00:52,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 13:00:52,159 INFO L85 PathProgramCache]: Analyzing trace with hash -1318097310, now seen corresponding path program 1 times [2022-07-13 13:00:52,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 13:00:52,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459541342] [2022-07-13 13:00:52,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 13:00:52,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 13:00:52,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 13:00:52,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 13:00:52,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 13:00:52,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459541342] [2022-07-13 13:00:52,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459541342] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 13:00:52,353 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 13:00:52,353 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 13:00:52,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107596879] [2022-07-13 13:00:52,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 13:00:52,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 13:00:52,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 13:00:52,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 13:00:52,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 13:00:52,386 INFO L87 Difference]: Start difference. First operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 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 12.0) internal successors, (36), 2 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 13:00:53,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 13:00:53,138 INFO L93 Difference]: Finished difference Result 685 states and 1216 transitions. [2022-07-13 13:00:53,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 13:00:53,140 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 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 36 [2022-07-13 13:00:53,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 13:00:53,149 INFO L225 Difference]: With dead ends: 685 [2022-07-13 13:00:53,149 INFO L226 Difference]: Without dead ends: 360 [2022-07-13 13:00:53,152 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 13:00:53,154 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 182 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 535 mSolverCounterSat, 176 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 176 IncrementalHoareTripleChecker+Valid, 535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-13 13:00:53,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 139 Invalid, 711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [176 Valid, 535 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-13 13:00:53,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2022-07-13 13:00:53,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2022-07-13 13:00:53,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 359 states have (on average 1.4206128133704736) internal successors, (510), 359 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 13:00:53,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 510 transitions. [2022-07-13 13:00:53,194 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 510 transitions. Word has length 36 [2022-07-13 13:00:53,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 13:00:53,194 INFO L495 AbstractCegarLoop]: Abstraction has 360 states and 510 transitions. [2022-07-13 13:00:53,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 13:00:53,194 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 510 transitions. [2022-07-13 13:00:53,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-07-13 13:00:53,196 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 13:00:53,197 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-07-13 13:00:53,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 13:00:53,197 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 13:00:53,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 13:00:53,197 INFO L85 PathProgramCache]: Analyzing trace with hash 598559029, now seen corresponding path program 1 times [2022-07-13 13:00:53,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 13:00:53,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935719749] [2022-07-13 13:00:53,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 13:00:53,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 13:00:53,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 13:00:53,410 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 13:00:53,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 13:00:53,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935719749] [2022-07-13 13:00:53,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935719749] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 13:00:53,411 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 13:00:53,411 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 13:00:53,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307850756] [2022-07-13 13:00:53,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 13:00:53,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 13:00:53,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 13:00:53,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 13:00:53,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-13 13:00:53,413 INFO L87 Difference]: Start difference. First operand 360 states and 510 transitions. Second operand has 4 states, 4 states have (on average 28.75) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 13:00:54,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 13:00:54,145 INFO L93 Difference]: Finished difference Result 1074 states and 1446 transitions. [2022-07-13 13:00:54,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-13 13:00:54,146 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 3 states have internal predecessors, (115), 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 115 [2022-07-13 13:00:54,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 13:00:54,149 INFO L225 Difference]: With dead ends: 1074 [2022-07-13 13:00:54,149 INFO L226 Difference]: Without dead ends: 716 [2022-07-13 13:00:54,150 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-13 13:00:54,150 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 418 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 976 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 418 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 1017 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 976 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-13 13:00:54,151 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [418 Valid, 121 Invalid, 1017 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 976 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-13 13:00:54,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2022-07-13 13:00:54,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 716. [2022-07-13 13:00:54,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 715 states have (on average 1.2615384615384615) internal successors, (902), 715 states have internal predecessors, (902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 13:00:54,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 902 transitions. [2022-07-13 13:00:54,173 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 902 transitions. Word has length 115 [2022-07-13 13:00:54,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 13:00:54,173 INFO L495 AbstractCegarLoop]: Abstraction has 716 states and 902 transitions. [2022-07-13 13:00:54,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 13:00:54,173 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 902 transitions. [2022-07-13 13:00:54,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-07-13 13:00:54,177 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 13:00:54,177 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-07-13 13:00:54,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-13 13:00:54,178 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 13:00:54,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 13:00:54,178 INFO L85 PathProgramCache]: Analyzing trace with hash 962256372, now seen corresponding path program 1 times [2022-07-13 13:00:54,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 13:00:54,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070175427] [2022-07-13 13:00:54,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 13:00:54,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 13:00:54,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 13:00:54,293 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-07-13 13:00:54,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 13:00:54,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070175427] [2022-07-13 13:00:54,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070175427] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 13:00:54,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [167371097] [2022-07-13 13:00:54,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 13:00:54,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 13:00:54,296 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 13:00:54,300 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 13:00:54,302 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-13 13:00:54,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 13:00:54,376 INFO L263 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 13:00:54,383 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 13:00:54,596 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-07-13 13:00:54,596 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 13:00:54,596 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [167371097] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 13:00:54,596 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 13:00:54,596 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2022-07-13 13:00:54,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005659602] [2022-07-13 13:00:54,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 13:00:54,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 13:00:54,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 13:00:54,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 13:00:54,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-13 13:00:54,598 INFO L87 Difference]: Start difference. First operand 716 states and 902 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 13:00:55,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 13:00:55,074 INFO L93 Difference]: Finished difference Result 1252 states and 1612 transitions. [2022-07-13 13:00:55,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 13:00:55,075 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2022-07-13 13:00:55,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 13:00:55,079 INFO L225 Difference]: With dead ends: 1252 [2022-07-13 13:00:55,079 INFO L226 Difference]: Without dead ends: 1250 [2022-07-13 13:00:55,079 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-13 13:00:55,080 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 91 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 574 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-13 13:00:55,080 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 36 Invalid, 599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 574 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-13 13:00:55,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2022-07-13 13:00:55,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 894. [2022-07-13 13:00:55,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 894 states, 893 states have (on average 1.3370660694288914) internal successors, (1194), 893 states have internal predecessors, (1194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 13:00:55,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1194 transitions. [2022-07-13 13:00:55,098 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1194 transitions. Word has length 141 [2022-07-13 13:00:55,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 13:00:55,099 INFO L495 AbstractCegarLoop]: Abstraction has 894 states and 1194 transitions. [2022-07-13 13:00:55,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 13:00:55,099 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1194 transitions. [2022-07-13 13:00:55,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-07-13 13:00:55,105 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 13:00:55,105 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 13:00:55,123 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-13 13:00:55,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 13:00:55,323 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 13:00:55,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 13:00:55,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1175834839, now seen corresponding path program 1 times [2022-07-13 13:00:55,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 13:00:55,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279756866] [2022-07-13 13:00:55,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 13:00:55,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 13:00:55,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 13:00:55,441 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-13 13:00:55,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 13:00:55,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279756866] [2022-07-13 13:00:55,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279756866] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 13:00:55,442 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 13:00:55,443 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 13:00:55,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479775878] [2022-07-13 13:00:55,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 13:00:55,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 13:00:55,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 13:00:55,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 13:00:55,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-13 13:00:55,448 INFO L87 Difference]: Start difference. First operand 894 states and 1194 transitions. Second operand has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 13:00:55,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 13:00:55,978 INFO L93 Difference]: Finished difference Result 1993 states and 2629 transitions. [2022-07-13 13:00:55,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-13 13:00:55,979 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 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 195 [2022-07-13 13:00:55,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 13:00:55,982 INFO L225 Difference]: With dead ends: 1993 [2022-07-13 13:00:55,982 INFO L226 Difference]: Without dead ends: 1072 [2022-07-13 13:00:55,983 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-13 13:00:55,984 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 104 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 736 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 802 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-13 13:00:55,984 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 121 Invalid, 802 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 736 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-13 13:00:55,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2022-07-13 13:00:55,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 1072. [2022-07-13 13:00:55,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1072 states, 1071 states have (on average 1.1802054154995332) internal successors, (1264), 1071 states have internal predecessors, (1264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 13:00:56,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1264 transitions. [2022-07-13 13:00:56,001 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1264 transitions. Word has length 195 [2022-07-13 13:00:56,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 13:00:56,002 INFO L495 AbstractCegarLoop]: Abstraction has 1072 states and 1264 transitions. [2022-07-13 13:00:56,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 13:00:56,002 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1264 transitions. [2022-07-13 13:00:56,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2022-07-13 13:00:56,004 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 13:00:56,004 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 13:00:56,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-13 13:00:56,004 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 13:00:56,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 13:00:56,005 INFO L85 PathProgramCache]: Analyzing trace with hash 1612317507, now seen corresponding path program 1 times [2022-07-13 13:00:56,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 13:00:56,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017350110] [2022-07-13 13:00:56,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 13:00:56,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 13:00:56,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 13:00:56,127 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 67 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 13:00:56,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 13:00:56,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017350110] [2022-07-13 13:00:56,127 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017350110] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 13:00:56,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1232997735] [2022-07-13 13:00:56,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 13:00:56,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 13:00:56,128 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 13:00:56,129 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 13:00:56,130 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-13 13:00:56,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 13:00:56,200 INFO L263 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 13:00:56,204 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 13:00:56,255 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2022-07-13 13:00:56,256 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 13:00:56,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1232997735] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 13:00:56,257 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 13:00:56,257 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2022-07-13 13:00:56,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324074495] [2022-07-13 13:00:56,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 13:00:56,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 13:00:56,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 13:00:56,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 13:00:56,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-13 13:00:56,261 INFO L87 Difference]: Start difference. First operand 1072 states and 1264 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 13:00:56,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 13:00:56,656 INFO L93 Difference]: Finished difference Result 2498 states and 3033 transitions. [2022-07-13 13:00:56,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 13:00:56,664 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 207 [2022-07-13 13:00:56,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 13:00:56,668 INFO L225 Difference]: With dead ends: 2498 [2022-07-13 13:00:56,669 INFO L226 Difference]: Without dead ends: 1428 [2022-07-13 13:00:56,670 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-13 13:00:56,672 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 147 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-13 13:00:56,672 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 85 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 439 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-13 13:00:56,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1428 states. [2022-07-13 13:00:56,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1428 to 1072. [2022-07-13 13:00:56,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1072 states, 1071 states have (on average 1.1802054154995332) internal successors, (1264), 1071 states have internal predecessors, (1264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 13:00:56,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1264 transitions. [2022-07-13 13:00:56,691 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1264 transitions. Word has length 207 [2022-07-13 13:00:56,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 13:00:56,691 INFO L495 AbstractCegarLoop]: Abstraction has 1072 states and 1264 transitions. [2022-07-13 13:00:56,691 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 13:00:56,692 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1264 transitions. [2022-07-13 13:00:56,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-07-13 13:00:56,695 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 13:00:56,695 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 13:00:56,717 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-07-13 13:00:56,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 13:00:56,912 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 13:00:56,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 13:00:56,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1756406788, now seen corresponding path program 1 times [2022-07-13 13:00:56,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 13:00:56,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290406538] [2022-07-13 13:00:56,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 13:00:56,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 13:00:56,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 13:00:57,010 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 135 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 13:00:57,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 13:00:57,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290406538] [2022-07-13 13:00:57,011 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290406538] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 13:00:57,011 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 13:00:57,011 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 13:00:57,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525946427] [2022-07-13 13:00:57,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 13:00:57,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 13:00:57,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 13:00:57,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 13:00:57,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 13:00:57,013 INFO L87 Difference]: Start difference. First operand 1072 states and 1264 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) [2022-07-13 13:00:57,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 13:00:57,393 INFO L93 Difference]: Finished difference Result 2676 states and 3213 transitions. [2022-07-13 13:00:57,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 13:00:57,394 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 210 [2022-07-13 13:00:57,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 13:00:57,398 INFO L225 Difference]: With dead ends: 2676 [2022-07-13 13:00:57,398 INFO L226 Difference]: Without dead ends: 1606 [2022-07-13 13:00:57,399 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 13:00:57,404 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 112 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-13 13:00:57,405 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 57 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 450 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-13 13:00:57,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states. [2022-07-13 13:00:57,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 1606. [2022-07-13 13:00:57,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1606 states, 1605 states have (on average 1.1576323987538941) internal successors, (1858), 1605 states have internal predecessors, (1858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 13:00:57,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1606 states and 1858 transitions. [2022-07-13 13:00:57,429 INFO L78 Accepts]: Start accepts. Automaton has 1606 states and 1858 transitions. Word has length 210 [2022-07-13 13:00:57,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 13:00:57,430 INFO L495 AbstractCegarLoop]: Abstraction has 1606 states and 1858 transitions. [2022-07-13 13:00:57,430 INFO L496 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) [2022-07-13 13:00:57,430 INFO L276 IsEmpty]: Start isEmpty. Operand 1606 states and 1858 transitions. [2022-07-13 13:00:57,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2022-07-13 13:00:57,432 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 13:00:57,433 INFO L195 NwaCegarLoop]: 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 13:00:57,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-13 13:00:57,433 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 13:00:57,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 13:00:57,434 INFO L85 PathProgramCache]: Analyzing trace with hash -1957778096, now seen corresponding path program 1 times [2022-07-13 13:00:57,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 13:00:57,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965662753] [2022-07-13 13:00:57,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 13:00:57,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 13:00:57,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 13:00:57,569 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 156 proven. 130 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2022-07-13 13:00:57,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 13:00:57,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965662753] [2022-07-13 13:00:57,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965662753] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 13:00:57,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1674342429] [2022-07-13 13:00:57,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 13:00:57,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 13:00:57,571 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 13:00:57,572 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 13:00:57,573 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-13 13:00:57,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 13:00:57,651 INFO L263 TraceCheckSpWp]: Trace formula consists of 458 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 13:00:57,659 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 13:00:57,916 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2022-07-13 13:00:57,917 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 13:00:57,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1674342429] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 13:00:57,917 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 13:00:57,917 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-07-13 13:00:57,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986707996] [2022-07-13 13:00:57,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 13:00:57,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 13:00:57,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 13:00:57,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 13:00:57,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-13 13:00:57,918 INFO L87 Difference]: Start difference. First operand 1606 states and 1858 transitions. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 2 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 13:00:58,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 13:00:58,321 INFO L93 Difference]: Finished difference Result 3566 states and 4204 transitions. [2022-07-13 13:00:58,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 13:00:58,322 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 2 states have internal predecessors, (145), 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 329 [2022-07-13 13:00:58,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 13:00:58,327 INFO L225 Difference]: With dead ends: 3566 [2022-07-13 13:00:58,327 INFO L226 Difference]: Without dead ends: 2140 [2022-07-13 13:00:58,328 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 328 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-13 13:00:58,329 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 82 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-13 13:00:58,329 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 47 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-13 13:00:58,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2140 states. [2022-07-13 13:00:58,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2140 to 1962. [2022-07-13 13:00:58,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1962 states, 1961 states have (on average 1.1330953595104538) internal successors, (2222), 1961 states have internal predecessors, (2222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 13:00:58,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1962 states to 1962 states and 2222 transitions. [2022-07-13 13:00:58,354 INFO L78 Accepts]: Start accepts. Automaton has 1962 states and 2222 transitions. Word has length 329 [2022-07-13 13:00:58,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 13:00:58,355 INFO L495 AbstractCegarLoop]: Abstraction has 1962 states and 2222 transitions. [2022-07-13 13:00:58,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 2 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 13:00:58,355 INFO L276 IsEmpty]: Start isEmpty. Operand 1962 states and 2222 transitions. [2022-07-13 13:00:58,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 407 [2022-07-13 13:00:58,358 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 13:00:58,358 INFO L195 NwaCegarLoop]: 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, 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, 2, 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] [2022-07-13 13:00:58,381 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-13 13:00:58,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 13:00:58,564 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 13:00:58,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 13:00:58,564 INFO L85 PathProgramCache]: Analyzing trace with hash 918840898, now seen corresponding path program 1 times [2022-07-13 13:00:58,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 13:00:58,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316149360] [2022-07-13 13:00:58,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 13:00:58,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 13:00:58,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 13:00:58,702 INFO L134 CoverageAnalysis]: Checked inductivity of 634 backedges. 366 proven. 0 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2022-07-13 13:00:58,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 13:00:58,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316149360] [2022-07-13 13:00:58,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316149360] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 13:00:58,702 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 13:00:58,703 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 13:00:58,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199094068] [2022-07-13 13:00:58,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 13:00:58,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 13:00:58,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 13:00:58,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 13:00:58,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-13 13:00:58,705 INFO L87 Difference]: Start difference. First operand 1962 states and 2222 transitions. Second operand has 4 states, 4 states have (on average 55.0) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 13:00:59,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 13:00:59,190 INFO L93 Difference]: Finished difference Result 3951 states and 4494 transitions. [2022-07-13 13:00:59,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-13 13:00:59,191 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 55.0) internal successors, (220), 3 states have internal predecessors, (220), 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 406 [2022-07-13 13:00:59,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 13:00:59,196 INFO L225 Difference]: With dead ends: 3951 [2022-07-13 13:00:59,196 INFO L226 Difference]: Without dead ends: 2140 [2022-07-13 13:00:59,198 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-13 13:00:59,199 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 142 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 685 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 742 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-13 13:00:59,199 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 17 Invalid, 742 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 685 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-13 13:00:59,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2140 states. [2022-07-13 13:00:59,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2140 to 1962. [2022-07-13 13:00:59,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1962 states, 1961 states have (on average 1.084140744518103) internal successors, (2126), 1961 states have internal predecessors, (2126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 13:00:59,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1962 states to 1962 states and 2126 transitions. [2022-07-13 13:00:59,226 INFO L78 Accepts]: Start accepts. Automaton has 1962 states and 2126 transitions. Word has length 406 [2022-07-13 13:00:59,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 13:00:59,226 INFO L495 AbstractCegarLoop]: Abstraction has 1962 states and 2126 transitions. [2022-07-13 13:00:59,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.0) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 13:00:59,226 INFO L276 IsEmpty]: Start isEmpty. Operand 1962 states and 2126 transitions. [2022-07-13 13:00:59,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2022-07-13 13:00:59,230 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 13:00:59,230 INFO L195 NwaCegarLoop]: 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, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 13:00:59,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-13 13:00:59,230 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 13:00:59,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 13:00:59,230 INFO L85 PathProgramCache]: Analyzing trace with hash 200589399, now seen corresponding path program 1 times [2022-07-13 13:00:59,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 13:00:59,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072430280] [2022-07-13 13:00:59,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 13:00:59,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 13:00:59,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 13:00:59,329 INFO L134 CoverageAnalysis]: Checked inductivity of 655 backedges. 341 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2022-07-13 13:00:59,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 13:00:59,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072430280] [2022-07-13 13:00:59,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072430280] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 13:00:59,330 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 13:00:59,330 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 13:00:59,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503817205] [2022-07-13 13:00:59,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 13:00:59,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 13:00:59,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 13:00:59,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 13:00:59,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 13:00:59,331 INFO L87 Difference]: Start difference. First operand 1962 states and 2126 transitions. Second operand has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 13:00:59,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 13:00:59,711 INFO L93 Difference]: Finished difference Result 4456 states and 4894 transitions. [2022-07-13 13:00:59,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 13:00:59,712 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 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 429 [2022-07-13 13:00:59,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 13:00:59,718 INFO L225 Difference]: With dead ends: 4456 [2022-07-13 13:00:59,718 INFO L226 Difference]: Without dead ends: 2674 [2022-07-13 13:00:59,720 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 13:00:59,720 INFO L413 NwaCegarLoop]: 198 mSDtfsCounter, 113 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-13 13:00:59,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 202 Invalid, 488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-13 13:00:59,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2674 states. [2022-07-13 13:00:59,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2674 to 2674. [2022-07-13 13:00:59,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2674 states, 2673 states have (on average 1.08791619902731) internal successors, (2908), 2673 states have internal predecessors, (2908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 13:00:59,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2674 states to 2674 states and 2908 transitions. [2022-07-13 13:00:59,755 INFO L78 Accepts]: Start accepts. Automaton has 2674 states and 2908 transitions. Word has length 429 [2022-07-13 13:00:59,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 13:00:59,756 INFO L495 AbstractCegarLoop]: Abstraction has 2674 states and 2908 transitions. [2022-07-13 13:00:59,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 13:00:59,756 INFO L276 IsEmpty]: Start isEmpty. Operand 2674 states and 2908 transitions. [2022-07-13 13:00:59,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 471 [2022-07-13 13:00:59,760 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 13:00:59,760 INFO L195 NwaCegarLoop]: 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 13:00:59,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-13 13:00:59,761 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 13:00:59,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 13:00:59,761 INFO L85 PathProgramCache]: Analyzing trace with hash 1994262682, now seen corresponding path program 1 times [2022-07-13 13:00:59,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 13:00:59,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722083888] [2022-07-13 13:00:59,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 13:00:59,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 13:00:59,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 13:00:59,882 INFO L134 CoverageAnalysis]: Checked inductivity of 769 backedges. 455 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2022-07-13 13:00:59,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 13:00:59,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722083888] [2022-07-13 13:00:59,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722083888] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 13:00:59,882 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 13:00:59,882 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 13:00:59,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544352273] [2022-07-13 13:00:59,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 13:00:59,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 13:00:59,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 13:00:59,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 13:00:59,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 13:00:59,883 INFO L87 Difference]: Start difference. First operand 2674 states and 2908 transitions. Second operand has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 13:01:00,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 13:01:00,289 INFO L93 Difference]: Finished difference Result 6236 states and 6878 transitions. [2022-07-13 13:01:00,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 13:01:00,290 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 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 470 [2022-07-13 13:01:00,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 13:01:00,298 INFO L225 Difference]: With dead ends: 6236 [2022-07-13 13:01:00,299 INFO L226 Difference]: Without dead ends: 3742 [2022-07-13 13:01:00,302 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 13:01:00,302 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 74 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-13 13:01:00,303 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 50 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-13 13:01:00,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3742 states. [2022-07-13 13:01:00,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3742 to 3742. [2022-07-13 13:01:00,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3742 states, 3741 states have (on average 1.083400160384924) internal successors, (4053), 3741 states have internal predecessors, (4053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 13:01:00,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3742 states to 3742 states and 4053 transitions. [2022-07-13 13:01:00,353 INFO L78 Accepts]: Start accepts. Automaton has 3742 states and 4053 transitions. Word has length 470 [2022-07-13 13:01:00,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 13:01:00,354 INFO L495 AbstractCegarLoop]: Abstraction has 3742 states and 4053 transitions. [2022-07-13 13:01:00,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 13:01:00,354 INFO L276 IsEmpty]: Start isEmpty. Operand 3742 states and 4053 transitions. [2022-07-13 13:01:00,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 507 [2022-07-13 13:01:00,359 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 13:01:00,359 INFO L195 NwaCegarLoop]: 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, 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, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 13:01:00,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-13 13:01:00,360 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 13:01:00,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 13:01:00,361 INFO L85 PathProgramCache]: Analyzing trace with hash 1478834189, now seen corresponding path program 1 times [2022-07-13 13:01:00,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 13:01:00,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129815605] [2022-07-13 13:01:00,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 13:01:00,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 13:01:00,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 13:01:00,511 INFO L134 CoverageAnalysis]: Checked inductivity of 988 backedges. 605 proven. 0 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2022-07-13 13:01:00,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 13:01:00,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129815605] [2022-07-13 13:01:00,512 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129815605] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 13:01:00,512 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 13:01:00,512 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 13:01:00,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408308597] [2022-07-13 13:01:00,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 13:01:00,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 13:01:00,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 13:01:00,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 13:01:00,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 13:01:00,513 INFO L87 Difference]: Start difference. First operand 3742 states and 4053 transitions. Second operand has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 13:01:00,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 13:01:00,865 INFO L93 Difference]: Finished difference Result 7304 states and 7925 transitions. [2022-07-13 13:01:00,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 13:01:00,866 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 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 506 [2022-07-13 13:01:00,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 13:01:00,874 INFO L225 Difference]: With dead ends: 7304 [2022-07-13 13:01:00,875 INFO L226 Difference]: Without dead ends: 3742 [2022-07-13 13:01:00,878 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 13:01:00,879 INFO L413 NwaCegarLoop]: 238 mSDtfsCounter, 103 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-13 13:01:00,879 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 242 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-13 13:01:00,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3742 states. [2022-07-13 13:01:00,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3742 to 3208. [2022-07-13 13:01:00,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3208 states, 3207 states have (on average 1.0792017461802308) internal successors, (3461), 3207 states have internal predecessors, (3461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 13:01:00,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3208 states to 3208 states and 3461 transitions. [2022-07-13 13:01:00,919 INFO L78 Accepts]: Start accepts. Automaton has 3208 states and 3461 transitions. Word has length 506 [2022-07-13 13:01:00,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 13:01:00,920 INFO L495 AbstractCegarLoop]: Abstraction has 3208 states and 3461 transitions. [2022-07-13 13:01:00,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 13:01:00,920 INFO L276 IsEmpty]: Start isEmpty. Operand 3208 states and 3461 transitions. [2022-07-13 13:01:00,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 626 [2022-07-13 13:01:00,923 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 13:01:00,924 INFO L195 NwaCegarLoop]: 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, 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, 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, 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, 1, 1] [2022-07-13 13:01:00,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-13 13:01:00,924 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 13:01:00,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 13:01:00,924 INFO L85 PathProgramCache]: Analyzing trace with hash -1228194463, now seen corresponding path program 1 times [2022-07-13 13:01:00,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 13:01:00,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466324709] [2022-07-13 13:01:00,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 13:01:00,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 13:01:00,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 13:01:01,077 INFO L134 CoverageAnalysis]: Checked inductivity of 1236 backedges. 812 proven. 110 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2022-07-13 13:01:01,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 13:01:01,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466324709] [2022-07-13 13:01:01,078 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466324709] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 13:01:01,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1666301947] [2022-07-13 13:01:01,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 13:01:01,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 13:01:01,079 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 13:01:01,080 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 13:01:01,081 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-13 13:01:01,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 13:01:01,211 INFO L263 TraceCheckSpWp]: Trace formula consists of 801 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 13:01:01,215 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 13:01:01,252 INFO L134 CoverageAnalysis]: Checked inductivity of 1236 backedges. 169 proven. 0 refuted. 0 times theorem prover too weak. 1067 trivial. 0 not checked. [2022-07-13 13:01:01,253 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 13:01:01,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1666301947] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 13:01:01,253 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 13:01:01,253 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-07-13 13:01:01,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789573486] [2022-07-13 13:01:01,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 13:01:01,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 13:01:01,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 13:01:01,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 13:01:01,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-13 13:01:01,256 INFO L87 Difference]: Start difference. First operand 3208 states and 3461 transitions. Second operand has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 13:01:01,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 13:01:01,658 INFO L93 Difference]: Finished difference Result 7304 states and 7920 transitions. [2022-07-13 13:01:01,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 13:01:01,663 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 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 625 [2022-07-13 13:01:01,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 13:01:01,674 INFO L225 Difference]: With dead ends: 7304 [2022-07-13 13:01:01,674 INFO L226 Difference]: Without dead ends: 4276 [2022-07-13 13:01:01,679 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 628 GetRequests, 625 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-13 13:01:01,680 INFO L413 NwaCegarLoop]: 232 mSDtfsCounter, 145 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-13 13:01:01,680 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 237 Invalid, 482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-13 13:01:01,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2022-07-13 13:01:01,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 4098. [2022-07-13 13:01:01,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4098 states, 4097 states have (on average 1.072247986331462) internal successors, (4393), 4097 states have internal predecessors, (4393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 13:01:01,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4098 states to 4098 states and 4393 transitions. [2022-07-13 13:01:01,745 INFO L78 Accepts]: Start accepts. Automaton has 4098 states and 4393 transitions. Word has length 625 [2022-07-13 13:01:01,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 13:01:01,746 INFO L495 AbstractCegarLoop]: Abstraction has 4098 states and 4393 transitions. [2022-07-13 13:01:01,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 13:01:01,746 INFO L276 IsEmpty]: Start isEmpty. Operand 4098 states and 4393 transitions. [2022-07-13 13:01:01,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 705 [2022-07-13 13:01:01,750 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 13:01:01,751 INFO L195 NwaCegarLoop]: 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, 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, 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, 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, 1, 1, 1] [2022-07-13 13:01:01,771 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-13 13:01:01,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 13:01:01,972 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 13:01:01,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 13:01:01,972 INFO L85 PathProgramCache]: Analyzing trace with hash -1503775658, now seen corresponding path program 1 times [2022-07-13 13:01:01,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 13:01:01,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225818099] [2022-07-13 13:01:01,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 13:01:01,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 13:01:02,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 13:01:02,161 INFO L134 CoverageAnalysis]: Checked inductivity of 1664 backedges. 1206 proven. 110 refuted. 0 times theorem prover too weak. 348 trivial. 0 not checked. [2022-07-13 13:01:02,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 13:01:02,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225818099] [2022-07-13 13:01:02,162 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225818099] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 13:01:02,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [533591389] [2022-07-13 13:01:02,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 13:01:02,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 13:01:02,162 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 13:01:02,163 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) [2022-07-13 13:01:02,164 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-13 13:01:02,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 13:01:02,309 INFO L263 TraceCheckSpWp]: Trace formula consists of 902 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 13:01:02,315 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 13:01:02,353 INFO L134 CoverageAnalysis]: Checked inductivity of 1664 backedges. 203 proven. 0 refuted. 0 times theorem prover too weak. 1461 trivial. 0 not checked. [2022-07-13 13:01:02,354 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 13:01:02,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [533591389] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 13:01:02,354 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 13:01:02,354 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-07-13 13:01:02,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042979042] [2022-07-13 13:01:02,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 13:01:02,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 13:01:02,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 13:01:02,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 13:01:02,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-13 13:01:02,355 INFO L87 Difference]: Start difference. First operand 4098 states and 4393 transitions. Second operand has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 13:01:02,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 13:01:02,688 INFO L93 Difference]: Finished difference Result 8906 states and 9550 transitions. [2022-07-13 13:01:02,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 13:01:02,688 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 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 704 [2022-07-13 13:01:02,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 13:01:02,712 INFO L225 Difference]: With dead ends: 8906 [2022-07-13 13:01:02,712 INFO L226 Difference]: Without dead ends: 4098 [2022-07-13 13:01:02,716 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 707 GetRequests, 704 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-13 13:01:02,716 INFO L413 NwaCegarLoop]: 236 mSDtfsCounter, 145 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-13 13:01:02,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 241 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-13 13:01:02,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4098 states. [2022-07-13 13:01:02,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4098 to 3564. [2022-07-13 13:01:02,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3564 states, 3563 states have (on average 1.0637103564412012) internal successors, (3790), 3563 states have internal predecessors, (3790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 13:01:02,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3564 states to 3564 states and 3790 transitions. [2022-07-13 13:01:02,762 INFO L78 Accepts]: Start accepts. Automaton has 3564 states and 3790 transitions. Word has length 704 [2022-07-13 13:01:02,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 13:01:02,762 INFO L495 AbstractCegarLoop]: Abstraction has 3564 states and 3790 transitions. [2022-07-13 13:01:02,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 13:01:02,763 INFO L276 IsEmpty]: Start isEmpty. Operand 3564 states and 3790 transitions. [2022-07-13 13:01:02,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 773 [2022-07-13 13:01:02,774 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 13:01:02,774 INFO L195 NwaCegarLoop]: 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, 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, 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, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 13:01:02,791 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-07-13 13:01:02,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-07-13 13:01:02,987 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 13:01:02,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 13:01:02,988 INFO L85 PathProgramCache]: Analyzing trace with hash -724163442, now seen corresponding path program 1 times [2022-07-13 13:01:02,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 13:01:02,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751195852] [2022-07-13 13:01:02,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 13:01:02,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 13:01:03,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 13:01:03,190 INFO L134 CoverageAnalysis]: Checked inductivity of 1727 backedges. 1224 proven. 155 refuted. 0 times theorem prover too weak. 348 trivial. 0 not checked. [2022-07-13 13:01:03,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 13:01:03,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751195852] [2022-07-13 13:01:03,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751195852] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 13:01:03,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1290099478] [2022-07-13 13:01:03,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 13:01:03,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 13:01:03,191 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 13:01:03,196 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 13:01:03,197 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-13 13:01:03,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 13:01:03,360 INFO L263 TraceCheckSpWp]: Trace formula consists of 973 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 13:01:03,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 13:01:03,426 INFO L134 CoverageAnalysis]: Checked inductivity of 1727 backedges. 203 proven. 0 refuted. 0 times theorem prover too weak. 1524 trivial. 0 not checked. [2022-07-13 13:01:03,427 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 13:01:03,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1290099478] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 13:01:03,427 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 13:01:03,427 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-07-13 13:01:03,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875887219] [2022-07-13 13:01:03,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 13:01:03,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 13:01:03,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 13:01:03,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 13:01:03,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-13 13:01:03,429 INFO L87 Difference]: Start difference. First operand 3564 states and 3790 transitions. Second operand has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 13:01:03,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 13:01:03,792 INFO L93 Difference]: Finished difference Result 7838 states and 8373 transitions. [2022-07-13 13:01:03,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 13:01:03,792 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 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 772 [2022-07-13 13:01:03,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 13:01:03,798 INFO L225 Difference]: With dead ends: 7838 [2022-07-13 13:01:03,798 INFO L226 Difference]: Without dead ends: 4454 [2022-07-13 13:01:03,801 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 775 GetRequests, 772 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-13 13:01:03,801 INFO L413 NwaCegarLoop]: 224 mSDtfsCounter, 145 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 415 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-13 13:01:03,801 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 229 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 415 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-13 13:01:03,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4454 states. [2022-07-13 13:01:03,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4454 to 4098. [2022-07-13 13:01:03,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4098 states, 4097 states have (on average 1.0573590432023432) internal successors, (4332), 4097 states have internal predecessors, (4332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 13:01:03,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4098 states to 4098 states and 4332 transitions. [2022-07-13 13:01:03,841 INFO L78 Accepts]: Start accepts. Automaton has 4098 states and 4332 transitions. Word has length 772 [2022-07-13 13:01:03,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 13:01:03,841 INFO L495 AbstractCegarLoop]: Abstraction has 4098 states and 4332 transitions. [2022-07-13 13:01:03,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 13:01:03,841 INFO L276 IsEmpty]: Start isEmpty. Operand 4098 states and 4332 transitions. [2022-07-13 13:01:03,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 792 [2022-07-13 13:01:03,847 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 13:01:03,847 INFO L195 NwaCegarLoop]: 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, 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, 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, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 13:01:03,867 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-07-13 13:01:04,063 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 13:01:04,064 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 13:01:04,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 13:01:04,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1347034201, now seen corresponding path program 1 times [2022-07-13 13:01:04,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 13:01:04,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351498536] [2022-07-13 13:01:04,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 13:01:04,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 13:01:04,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 13:01:04,269 INFO L134 CoverageAnalysis]: Checked inductivity of 1822 backedges. 1319 proven. 155 refuted. 0 times theorem prover too weak. 348 trivial. 0 not checked. [2022-07-13 13:01:04,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 13:01:04,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351498536] [2022-07-13 13:01:04,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351498536] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 13:01:04,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [486949398] [2022-07-13 13:01:04,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 13:01:04,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 13:01:04,270 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 13:01:04,271 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 13:01:04,272 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-13 13:01:04,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 13:01:04,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 993 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 13:01:04,431 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 13:01:04,540 INFO L134 CoverageAnalysis]: Checked inductivity of 1822 backedges. 707 proven. 0 refuted. 0 times theorem prover too weak. 1115 trivial. 0 not checked. [2022-07-13 13:01:04,540 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 13:01:04,540 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [486949398] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 13:01:04,540 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 13:01:04,540 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-07-13 13:01:04,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460223532] [2022-07-13 13:01:04,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 13:01:04,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 13:01:04,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 13:01:04,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 13:01:04,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-13 13:01:04,553 INFO L87 Difference]: Start difference. First operand 4098 states and 4332 transitions. Second operand has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 13:01:04,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 13:01:04,922 INFO L93 Difference]: Finished difference Result 8550 states and 9079 transitions. [2022-07-13 13:01:04,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 13:01:04,923 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 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 791 [2022-07-13 13:01:04,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 13:01:04,928 INFO L225 Difference]: With dead ends: 8550 [2022-07-13 13:01:04,928 INFO L226 Difference]: Without dead ends: 4810 [2022-07-13 13:01:04,931 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 794 GetRequests, 791 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-13 13:01:04,932 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 81 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 408 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-13 13:01:04,932 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 26 Invalid, 457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 408 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-13 13:01:04,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4810 states. [2022-07-13 13:01:04,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4810 to 4632. [2022-07-13 13:01:04,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4632 states, 4631 states have (on average 1.0563593176419779) internal successors, (4892), 4631 states have internal predecessors, (4892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 13:01:04,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4632 states to 4632 states and 4892 transitions. [2022-07-13 13:01:04,973 INFO L78 Accepts]: Start accepts. Automaton has 4632 states and 4892 transitions. Word has length 791 [2022-07-13 13:01:04,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 13:01:04,973 INFO L495 AbstractCegarLoop]: Abstraction has 4632 states and 4892 transitions. [2022-07-13 13:01:04,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 13:01:04,974 INFO L276 IsEmpty]: Start isEmpty. Operand 4632 states and 4892 transitions. [2022-07-13 13:01:04,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 806 [2022-07-13 13:01:04,980 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 13:01:04,980 INFO L195 NwaCegarLoop]: 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, 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, 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, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 13:01:05,001 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-13 13:01:05,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 13:01:05,196 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 13:01:05,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 13:01:05,196 INFO L85 PathProgramCache]: Analyzing trace with hash 380264438, now seen corresponding path program 1 times [2022-07-13 13:01:05,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 13:01:05,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404655570] [2022-07-13 13:01:05,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 13:01:05,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 13:01:05,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 13:01:05,395 INFO L134 CoverageAnalysis]: Checked inductivity of 1871 backedges. 1368 proven. 155 refuted. 0 times theorem prover too weak. 348 trivial. 0 not checked. [2022-07-13 13:01:05,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 13:01:05,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404655570] [2022-07-13 13:01:05,395 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404655570] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 13:01:05,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1027517848] [2022-07-13 13:01:05,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 13:01:05,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 13:01:05,396 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 13:01:05,397 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 13:01:05,398 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-13 13:01:05,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 13:01:05,557 INFO L263 TraceCheckSpWp]: Trace formula consists of 1005 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 13:01:05,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 13:01:05,852 INFO L134 CoverageAnalysis]: Checked inductivity of 1871 backedges. 1368 proven. 155 refuted. 0 times theorem prover too weak. 348 trivial. 0 not checked. [2022-07-13 13:01:05,852 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 13:01:06,139 INFO L134 CoverageAnalysis]: Checked inductivity of 1871 backedges. 1368 proven. 155 refuted. 0 times theorem prover too weak. 348 trivial. 0 not checked. [2022-07-13 13:01:06,139 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1027517848] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 13:01:06,140 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 13:01:06,140 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2022-07-13 13:01:06,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852850052] [2022-07-13 13:01:06,141 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 13:01:06,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 13:01:06,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 13:01:06,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 13:01:06,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-07-13 13:01:06,143 INFO L87 Difference]: Start difference. First operand 4632 states and 4892 transitions. Second operand has 6 states, 6 states have (on average 149.16666666666666) internal successors, (895), 6 states have internal predecessors, (895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 13:01:06,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 13:01:06,891 INFO L93 Difference]: Finished difference Result 10330 states and 10924 transitions. [2022-07-13 13:01:06,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 13:01:06,892 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 149.16666666666666) internal successors, (895), 6 states have internal predecessors, (895), 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 805 [2022-07-13 13:01:06,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 13:01:06,905 INFO L225 Difference]: With dead ends: 10330 [2022-07-13 13:01:06,905 INFO L226 Difference]: Without dead ends: 6056 [2022-07-13 13:01:06,908 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1612 GetRequests, 1608 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-07-13 13:01:06,909 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 40 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 1210 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 1252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 1210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-13 13:01:06,909 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 58 Invalid, 1252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 1210 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-13 13:01:06,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6056 states. [2022-07-13 13:01:06,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6056 to 5344. [2022-07-13 13:01:06,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5344 states, 5343 states have (on average 1.0533408197641774) internal successors, (5628), 5343 states have internal predecessors, (5628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 13:01:06,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5344 states to 5344 states and 5628 transitions. [2022-07-13 13:01:06,955 INFO L78 Accepts]: Start accepts. Automaton has 5344 states and 5628 transitions. Word has length 805 [2022-07-13 13:01:06,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 13:01:06,956 INFO L495 AbstractCegarLoop]: Abstraction has 5344 states and 5628 transitions. [2022-07-13 13:01:06,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 149.16666666666666) internal successors, (895), 6 states have internal predecessors, (895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 13:01:06,956 INFO L276 IsEmpty]: Start isEmpty. Operand 5344 states and 5628 transitions. [2022-07-13 13:01:06,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 883 [2022-07-13 13:01:06,963 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 13:01:06,964 INFO L195 NwaCegarLoop]: 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, 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, 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, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 13:01:06,983 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-07-13 13:01:07,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-07-13 13:01:07,172 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 13:01:07,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 13:01:07,172 INFO L85 PathProgramCache]: Analyzing trace with hash 207381265, now seen corresponding path program 1 times [2022-07-13 13:01:07,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 13:01:07,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858320392] [2022-07-13 13:01:07,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 13:01:07,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 13:01:07,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 13:01:07,410 INFO L134 CoverageAnalysis]: Checked inductivity of 2491 backedges. 1685 proven. 0 refuted. 0 times theorem prover too weak. 806 trivial. 0 not checked. [2022-07-13 13:01:07,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 13:01:07,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858320392] [2022-07-13 13:01:07,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858320392] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 13:01:07,411 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 13:01:07,411 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 13:01:07,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009811719] [2022-07-13 13:01:07,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 13:01:07,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 13:01:07,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 13:01:07,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 13:01:07,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 13:01:07,413 INFO L87 Difference]: Start difference. First operand 5344 states and 5628 transitions. Second operand has 3 states, 3 states have (on average 143.0) internal successors, (429), 3 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 13:01:07,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 13:01:07,748 INFO L93 Difference]: Finished difference Result 10152 states and 10715 transitions. [2022-07-13 13:01:07,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 13:01:07,751 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 143.0) internal successors, (429), 3 states have internal predecessors, (429), 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 882 [2022-07-13 13:01:07,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 13:01:07,758 INFO L225 Difference]: With dead ends: 10152 [2022-07-13 13:01:07,758 INFO L226 Difference]: Without dead ends: 5166 [2022-07-13 13:01:07,761 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 13:01:07,762 INFO L413 NwaCegarLoop]: 213 mSDtfsCounter, 21 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-13 13:01:07,762 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 218 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-13 13:01:07,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5166 states. [2022-07-13 13:01:07,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5166 to 4988. [2022-07-13 13:01:07,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4988 states, 4987 states have (on average 1.0449167836374573) internal successors, (5211), 4987 states have internal predecessors, (5211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 13:01:07,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4988 states to 4988 states and 5211 transitions. [2022-07-13 13:01:07,805 INFO L78 Accepts]: Start accepts. Automaton has 4988 states and 5211 transitions. Word has length 882 [2022-07-13 13:01:07,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 13:01:07,806 INFO L495 AbstractCegarLoop]: Abstraction has 4988 states and 5211 transitions. [2022-07-13 13:01:07,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 143.0) internal successors, (429), 3 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 13:01:07,806 INFO L276 IsEmpty]: Start isEmpty. Operand 4988 states and 5211 transitions. [2022-07-13 13:01:07,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 907 [2022-07-13 13:01:07,815 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 13:01:07,815 INFO L195 NwaCegarLoop]: 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, 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, 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, 5, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-07-13 13:01:07,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-13 13:01:07,815 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 13:01:07,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 13:01:07,816 INFO L85 PathProgramCache]: Analyzing trace with hash -2060216049, now seen corresponding path program 1 times [2022-07-13 13:01:07,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 13:01:07,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339187316] [2022-07-13 13:01:07,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 13:01:07,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 13:01:07,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 13:01:08,057 INFO L134 CoverageAnalysis]: Checked inductivity of 2527 backedges. 1696 proven. 93 refuted. 0 times theorem prover too weak. 738 trivial. 0 not checked. [2022-07-13 13:01:08,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 13:01:08,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339187316] [2022-07-13 13:01:08,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339187316] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 13:01:08,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1571526816] [2022-07-13 13:01:08,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 13:01:08,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 13:01:08,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 13:01:08,059 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 13:01:08,060 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-07-13 13:01:08,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 13:01:08,237 INFO L263 TraceCheckSpWp]: Trace formula consists of 1124 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 13:01:08,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 13:01:08,303 INFO L134 CoverageAnalysis]: Checked inductivity of 2527 backedges. 237 proven. 0 refuted. 0 times theorem prover too weak. 2290 trivial. 0 not checked. [2022-07-13 13:01:08,304 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 13:01:08,304 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1571526816] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 13:01:08,304 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 13:01:08,304 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2022-07-13 13:01:08,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222377545] [2022-07-13 13:01:08,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 13:01:08,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 13:01:08,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 13:01:08,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 13:01:08,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-13 13:01:08,306 INFO L87 Difference]: Start difference. First operand 4988 states and 5211 transitions. Second operand has 3 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 13:01:08,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 13:01:08,663 INFO L93 Difference]: Finished difference Result 9796 states and 10244 transitions. [2022-07-13 13:01:08,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 13:01:08,663 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 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 906 [2022-07-13 13:01:08,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 13:01:08,671 INFO L225 Difference]: With dead ends: 9796 [2022-07-13 13:01:08,671 INFO L226 Difference]: Without dead ends: 5166 [2022-07-13 13:01:08,675 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 909 GetRequests, 905 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-13 13:01:08,676 INFO L413 NwaCegarLoop]: 203 mSDtfsCounter, 147 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 413 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-13 13:01:08,676 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 208 Invalid, 447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 413 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-13 13:01:08,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5166 states. [2022-07-13 13:01:08,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5166 to 4810. [2022-07-13 13:01:08,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4810 states, 4809 states have (on average 1.0411728009981285) internal successors, (5007), 4809 states have internal predecessors, (5007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 13:01:08,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4810 states to 4810 states and 5007 transitions. [2022-07-13 13:01:08,730 INFO L78 Accepts]: Start accepts. Automaton has 4810 states and 5007 transitions. Word has length 906 [2022-07-13 13:01:08,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 13:01:08,731 INFO L495 AbstractCegarLoop]: Abstraction has 4810 states and 5007 transitions. [2022-07-13 13:01:08,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 13:01:08,731 INFO L276 IsEmpty]: Start isEmpty. Operand 4810 states and 5007 transitions. [2022-07-13 13:01:08,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 915 [2022-07-13 13:01:08,739 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 13:01:08,740 INFO L195 NwaCegarLoop]: 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, 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, 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, 5, 5, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 13:01:08,760 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-07-13 13:01:08,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-07-13 13:01:08,948 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 13:01:08,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 13:01:08,948 INFO L85 PathProgramCache]: Analyzing trace with hash 1395619067, now seen corresponding path program 1 times [2022-07-13 13:01:08,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 13:01:08,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135297297] [2022-07-13 13:01:08,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 13:01:08,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 13:01:09,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 13:01:09,178 INFO L134 CoverageAnalysis]: Checked inductivity of 2550 backedges. 1710 proven. 93 refuted. 0 times theorem prover too weak. 747 trivial. 0 not checked. [2022-07-13 13:01:09,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 13:01:09,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135297297] [2022-07-13 13:01:09,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135297297] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 13:01:09,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [59644137] [2022-07-13 13:01:09,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 13:01:09,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 13:01:09,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 13:01:09,181 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 13:01:09,195 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-07-13 13:01:09,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 13:01:09,376 INFO L263 TraceCheckSpWp]: Trace formula consists of 1130 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 13:01:09,382 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 13:01:10,030 INFO L134 CoverageAnalysis]: Checked inductivity of 2550 backedges. 864 proven. 0 refuted. 0 times theorem prover too weak. 1686 trivial. 0 not checked. [2022-07-13 13:01:10,030 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 13:01:10,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [59644137] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 13:01:10,032 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 13:01:10,032 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-07-13 13:01:10,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129061478] [2022-07-13 13:01:10,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 13:01:10,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 13:01:10,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 13:01:10,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 13:01:10,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-13 13:01:10,035 INFO L87 Difference]: Start difference. First operand 4810 states and 5007 transitions. Second operand has 3 states, 3 states have (on average 99.0) internal successors, (297), 2 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 13:01:10,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 13:01:10,338 INFO L93 Difference]: Finished difference Result 9974 states and 10392 transitions. [2022-07-13 13:01:10,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 13:01:10,339 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 99.0) internal successors, (297), 2 states have internal predecessors, (297), 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 914 [2022-07-13 13:01:10,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 13:01:10,347 INFO L225 Difference]: With dead ends: 9974 [2022-07-13 13:01:10,348 INFO L226 Difference]: Without dead ends: 5522 [2022-07-13 13:01:10,351 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 917 GetRequests, 913 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-13 13:01:10,352 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 10 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-13 13:01:10,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 38 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-13 13:01:10,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5522 states. [2022-07-13 13:01:10,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5522 to 4988. [2022-07-13 13:01:10,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4988 states, 4987 states have (on average 1.040304792460397) internal successors, (5188), 4987 states have internal predecessors, (5188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 13:01:10,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4988 states to 4988 states and 5188 transitions. [2022-07-13 13:01:10,400 INFO L78 Accepts]: Start accepts. Automaton has 4988 states and 5188 transitions. Word has length 914 [2022-07-13 13:01:10,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 13:01:10,401 INFO L495 AbstractCegarLoop]: Abstraction has 4988 states and 5188 transitions. [2022-07-13 13:01:10,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 99.0) internal successors, (297), 2 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 13:01:10,401 INFO L276 IsEmpty]: Start isEmpty. Operand 4988 states and 5188 transitions. [2022-07-13 13:01:10,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 939 [2022-07-13 13:01:10,414 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 13:01:10,415 INFO L195 NwaCegarLoop]: 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, 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, 7, 6, 5, 5, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 13:01:10,432 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-07-13 13:01:10,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 13:01:10,632 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 13:01:10,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 13:01:10,632 INFO L85 PathProgramCache]: Analyzing trace with hash 751779683, now seen corresponding path program 1 times [2022-07-13 13:01:10,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 13:01:10,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400750428] [2022-07-13 13:01:10,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 13:01:10,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 13:01:10,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 13:01:10,871 INFO L134 CoverageAnalysis]: Checked inductivity of 3031 backedges. 1946 proven. 93 refuted. 0 times theorem prover too weak. 992 trivial. 0 not checked. [2022-07-13 13:01:10,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 13:01:10,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400750428] [2022-07-13 13:01:10,872 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400750428] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 13:01:10,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [174324330] [2022-07-13 13:01:10,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 13:01:10,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 13:01:10,872 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 13:01:10,876 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 13:01:10,877 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-07-13 13:01:11,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 13:01:11,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 1182 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 13:01:11,074 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 13:01:11,438 INFO L134 CoverageAnalysis]: Checked inductivity of 3031 backedges. 2039 proven. 0 refuted. 0 times theorem prover too weak. 992 trivial. 0 not checked. [2022-07-13 13:01:11,438 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 13:01:11,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [174324330] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 13:01:11,438 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 13:01:11,439 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2022-07-13 13:01:11,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583640363] [2022-07-13 13:01:11,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 13:01:11,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 13:01:11,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 13:01:11,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 13:01:11,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-13 13:01:11,440 INFO L87 Difference]: Start difference. First operand 4988 states and 5188 transitions. Second operand has 3 states, 3 states have (on average 136.66666666666666) internal successors, (410), 3 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 13:01:11,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 13:01:11,772 INFO L93 Difference]: Finished difference Result 9796 states and 10198 transitions. [2022-07-13 13:01:11,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 13:01:11,773 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 136.66666666666666) internal successors, (410), 3 states have internal predecessors, (410), 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 938 [2022-07-13 13:01:11,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 13:01:11,778 INFO L225 Difference]: With dead ends: 9796 [2022-07-13 13:01:11,779 INFO L226 Difference]: Without dead ends: 5166 [2022-07-13 13:01:11,782 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 941 GetRequests, 937 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-13 13:01:11,783 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 8 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-13 13:01:11,783 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 52 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-13 13:01:11,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5166 states. [2022-07-13 13:01:11,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5166 to 4810. [2022-07-13 13:01:11,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4810 states, 4809 states have (on average 1.0411728009981285) internal successors, (5007), 4809 states have internal predecessors, (5007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 13:01:11,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4810 states to 4810 states and 5007 transitions. [2022-07-13 13:01:11,832 INFO L78 Accepts]: Start accepts. Automaton has 4810 states and 5007 transitions. Word has length 938 [2022-07-13 13:01:11,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 13:01:11,833 INFO L495 AbstractCegarLoop]: Abstraction has 4810 states and 5007 transitions. [2022-07-13 13:01:11,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 136.66666666666666) internal successors, (410), 3 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 13:01:11,833 INFO L276 IsEmpty]: Start isEmpty. Operand 4810 states and 5007 transitions. [2022-07-13 13:01:11,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1016 [2022-07-13 13:01:11,845 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 13:01:11,846 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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, 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, 5, 5, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 13:01:11,866 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-07-13 13:01:12,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 13:01:12,050 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 13:01:12,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 13:01:12,050 INFO L85 PathProgramCache]: Analyzing trace with hash 1927304045, now seen corresponding path program 1 times [2022-07-13 13:01:12,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 13:01:12,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566475932] [2022-07-13 13:01:12,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 13:01:12,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 13:01:12,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 13:01:12,325 INFO L134 CoverageAnalysis]: Checked inductivity of 3675 backedges. 1701 proven. 0 refuted. 0 times theorem prover too weak. 1974 trivial. 0 not checked. [2022-07-13 13:01:12,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 13:01:12,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566475932] [2022-07-13 13:01:12,325 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566475932] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 13:01:12,326 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 13:01:12,326 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-13 13:01:12,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75471993] [2022-07-13 13:01:12,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 13:01:12,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 13:01:12,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 13:01:12,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 13:01:12,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-07-13 13:01:12,327 INFO L87 Difference]: Start difference. First operand 4810 states and 5007 transitions. Second operand has 7 states, 7 states have (on average 49.857142857142854) internal successors, (349), 6 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 13:01:12,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 13:01:12,833 INFO L93 Difference]: Finished difference Result 9490 states and 9886 transitions. [2022-07-13 13:01:12,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-13 13:01:12,834 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 49.857142857142854) internal successors, (349), 6 states have internal predecessors, (349), 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 1015 [2022-07-13 13:01:12,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 13:01:12,838 INFO L225 Difference]: With dead ends: 9490 [2022-07-13 13:01:12,839 INFO L226 Difference]: Without dead ends: 4988 [2022-07-13 13:01:12,842 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-07-13 13:01:12,842 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 77 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 946 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 958 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 946 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-13 13:01:12,842 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 28 Invalid, 958 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 946 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-13 13:01:12,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4988 states. [2022-07-13 13:01:12,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4988 to 4810. [2022-07-13 13:01:12,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4810 states, 4809 states have (on average 1.0330630068621336) internal successors, (4968), 4809 states have internal predecessors, (4968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 13:01:12,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4810 states to 4810 states and 4968 transitions. [2022-07-13 13:01:12,882 INFO L78 Accepts]: Start accepts. Automaton has 4810 states and 4968 transitions. Word has length 1015 [2022-07-13 13:01:12,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 13:01:12,883 INFO L495 AbstractCegarLoop]: Abstraction has 4810 states and 4968 transitions. [2022-07-13 13:01:12,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 49.857142857142854) internal successors, (349), 6 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 13:01:12,883 INFO L276 IsEmpty]: Start isEmpty. Operand 4810 states and 4968 transitions. [2022-07-13 13:01:12,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1048 [2022-07-13 13:01:12,893 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 13:01:12,893 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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, 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, 5, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 13:01:12,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-07-13 13:01:12,894 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 13:01:12,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 13:01:12,894 INFO L85 PathProgramCache]: Analyzing trace with hash -1401544166, now seen corresponding path program 1 times [2022-07-13 13:01:12,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 13:01:12,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470363934] [2022-07-13 13:01:12,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 13:01:12,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 13:01:12,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 13:01:13,139 INFO L134 CoverageAnalysis]: Checked inductivity of 3551 backedges. 1082 proven. 0 refuted. 0 times theorem prover too weak. 2469 trivial. 0 not checked. [2022-07-13 13:01:13,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 13:01:13,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470363934] [2022-07-13 13:01:13,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470363934] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 13:01:13,140 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 13:01:13,140 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 13:01:13,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036698099] [2022-07-13 13:01:13,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 13:01:13,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 13:01:13,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 13:01:13,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 13:01:13,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 13:01:13,141 INFO L87 Difference]: Start difference. First operand 4810 states and 4968 transitions. Second operand has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 13:01:13,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 13:01:13,447 INFO L93 Difference]: Finished difference Result 9262 states and 9576 transitions. [2022-07-13 13:01:13,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 13:01:13,449 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 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 1047 [2022-07-13 13:01:13,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 13:01:13,453 INFO L225 Difference]: With dead ends: 9262 [2022-07-13 13:01:13,453 INFO L226 Difference]: Without dead ends: 4810 [2022-07-13 13:01:13,455 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 13:01:13,456 INFO L413 NwaCegarLoop]: 218 mSDtfsCounter, 66 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-13 13:01:13,456 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 223 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-13 13:01:13,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4810 states. [2022-07-13 13:01:13,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4810 to 4810. [2022-07-13 13:01:13,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4810 states, 4809 states have (on average 1.0295279683925973) internal successors, (4951), 4809 states have internal predecessors, (4951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 13:01:13,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4810 states to 4810 states and 4951 transitions. [2022-07-13 13:01:13,488 INFO L78 Accepts]: Start accepts. Automaton has 4810 states and 4951 transitions. Word has length 1047 [2022-07-13 13:01:13,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 13:01:13,488 INFO L495 AbstractCegarLoop]: Abstraction has 4810 states and 4951 transitions. [2022-07-13 13:01:13,488 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 13:01:13,489 INFO L276 IsEmpty]: Start isEmpty. Operand 4810 states and 4951 transitions. [2022-07-13 13:01:13,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1096 [2022-07-13 13:01:13,499 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 13:01:13,499 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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, 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, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-07-13 13:01:13,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-07-13 13:01:13,500 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 13:01:13,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 13:01:13,500 INFO L85 PathProgramCache]: Analyzing trace with hash -1689291374, now seen corresponding path program 1 times [2022-07-13 13:01:13,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 13:01:13,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476238099] [2022-07-13 13:01:13,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 13:01:13,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 13:01:13,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 13:01:13,753 INFO L134 CoverageAnalysis]: Checked inductivity of 3788 backedges. 2738 proven. 72 refuted. 0 times theorem prover too weak. 978 trivial. 0 not checked. [2022-07-13 13:01:13,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 13:01:13,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476238099] [2022-07-13 13:01:13,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476238099] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 13:01:13,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [191438701] [2022-07-13 13:01:13,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 13:01:13,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 13:01:13,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 13:01:13,755 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 13:01:13,756 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-07-13 13:01:13,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 13:01:13,992 INFO L263 TraceCheckSpWp]: Trace formula consists of 1364 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-13 13:01:13,998 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 13:01:14,303 INFO L134 CoverageAnalysis]: Checked inductivity of 3788 backedges. 2451 proven. 0 refuted. 0 times theorem prover too weak. 1337 trivial. 0 not checked. [2022-07-13 13:01:14,304 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 13:01:14,304 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [191438701] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 13:01:14,304 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 13:01:14,304 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2022-07-13 13:01:14,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712009691] [2022-07-13 13:01:14,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 13:01:14,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 13:01:14,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 13:01:14,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 13:01:14,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-07-13 13:01:14,306 INFO L87 Difference]: Start difference. First operand 4810 states and 4951 transitions. Second operand has 4 states, 4 states have (on average 148.75) internal successors, (595), 4 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 13:01:14,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 13:01:14,822 INFO L93 Difference]: Finished difference Result 9796 states and 10101 transitions. [2022-07-13 13:01:14,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-13 13:01:14,822 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 148.75) internal successors, (595), 4 states have internal predecessors, (595), 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 1095 [2022-07-13 13:01:14,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 13:01:14,827 INFO L225 Difference]: With dead ends: 9796 [2022-07-13 13:01:14,827 INFO L226 Difference]: Without dead ends: 5344 [2022-07-13 13:01:14,829 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1099 GetRequests, 1094 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-07-13 13:01:14,830 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 68 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 773 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 811 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 773 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-13 13:01:14,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 39 Invalid, 811 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 773 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-13 13:01:14,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5344 states. [2022-07-13 13:01:14,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5344 to 5166. [2022-07-13 13:01:14,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5166 states, 5165 states have (on average 1.028460793804453) internal successors, (5312), 5165 states have internal predecessors, (5312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 13:01:14,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5166 states to 5166 states and 5312 transitions. [2022-07-13 13:01:14,865 INFO L78 Accepts]: Start accepts. Automaton has 5166 states and 5312 transitions. Word has length 1095 [2022-07-13 13:01:14,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 13:01:14,866 INFO L495 AbstractCegarLoop]: Abstraction has 5166 states and 5312 transitions. [2022-07-13 13:01:14,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 148.75) internal successors, (595), 4 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 13:01:14,866 INFO L276 IsEmpty]: Start isEmpty. Operand 5166 states and 5312 transitions. [2022-07-13 13:01:14,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1336 [2022-07-13 13:01:14,879 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 13:01:14,879 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 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, 7, 7, 7, 7, 7, 7, 7, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 13:01:14,898 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-07-13 13:01:15,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2022-07-13 13:01:15,081 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 13:01:15,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 13:01:15,082 INFO L85 PathProgramCache]: Analyzing trace with hash -808907614, now seen corresponding path program 1 times [2022-07-13 13:01:15,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 13:01:15,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153307875] [2022-07-13 13:01:15,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 13:01:15,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 13:01:15,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 13:01:15,426 INFO L134 CoverageAnalysis]: Checked inductivity of 5860 backedges. 3029 proven. 0 refuted. 0 times theorem prover too weak. 2831 trivial. 0 not checked. [2022-07-13 13:01:15,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 13:01:15,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153307875] [2022-07-13 13:01:15,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153307875] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 13:01:15,427 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 13:01:15,427 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 13:01:15,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380470256] [2022-07-13 13:01:15,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 13:01:15,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 13:01:15,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 13:01:15,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 13:01:15,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 13:01:15,429 INFO L87 Difference]: Start difference. First operand 5166 states and 5312 transitions. Second operand has 3 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 13:01:15,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 13:01:15,746 INFO L93 Difference]: Finished difference Result 9974 states and 10264 transitions. [2022-07-13 13:01:15,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 13:01:15,747 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 states have internal predecessors, (436), 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 1335 [2022-07-13 13:01:15,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 13:01:15,751 INFO L225 Difference]: With dead ends: 9974 [2022-07-13 13:01:15,751 INFO L226 Difference]: Without dead ends: 5166 [2022-07-13 13:01:15,757 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 13:01:15,760 INFO L413 NwaCegarLoop]: 220 mSDtfsCounter, 53 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-13 13:01:15,760 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 225 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 390 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-13 13:01:15,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5166 states. [2022-07-13 13:01:15,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5166 to 4988. [2022-07-13 13:01:15,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4988 states, 4987 states have (on average 1.0280729897734109) internal successors, (5127), 4987 states have internal predecessors, (5127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 13:01:15,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4988 states to 4988 states and 5127 transitions. [2022-07-13 13:01:15,795 INFO L78 Accepts]: Start accepts. Automaton has 4988 states and 5127 transitions. Word has length 1335 [2022-07-13 13:01:15,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 13:01:15,795 INFO L495 AbstractCegarLoop]: Abstraction has 4988 states and 5127 transitions. [2022-07-13 13:01:15,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 13:01:15,795 INFO L276 IsEmpty]: Start isEmpty. Operand 4988 states and 5127 transitions. [2022-07-13 13:01:15,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1633 [2022-07-13 13:01:15,813 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 13:01:15,813 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 9, 9, 9, 8, 8, 8, 8, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 13:01:15,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-07-13 13:01:15,813 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 13:01:15,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 13:01:15,814 INFO L85 PathProgramCache]: Analyzing trace with hash 2046809236, now seen corresponding path program 1 times [2022-07-13 13:01:15,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 13:01:15,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981031843] [2022-07-13 13:01:15,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 13:01:15,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 13:01:15,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 13:01:16,349 INFO L134 CoverageAnalysis]: Checked inductivity of 8487 backedges. 4301 proven. 571 refuted. 0 times theorem prover too weak. 3615 trivial. 0 not checked. [2022-07-13 13:01:16,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 13:01:16,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981031843] [2022-07-13 13:01:16,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981031843] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 13:01:16,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1563710108] [2022-07-13 13:01:16,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 13:01:16,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 13:01:16,351 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 13:01:16,352 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 13:01:16,353 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-07-13 13:01:16,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 13:01:16,653 INFO L263 TraceCheckSpWp]: Trace formula consists of 1991 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-13 13:01:16,683 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 13:01:17,784 INFO L134 CoverageAnalysis]: Checked inductivity of 8487 backedges. 3476 proven. 435 refuted. 0 times theorem prover too weak. 4576 trivial. 0 not checked. [2022-07-13 13:01:17,785 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 13:01:18,322 INFO L134 CoverageAnalysis]: Checked inductivity of 8487 backedges. 3578 proven. 333 refuted. 0 times theorem prover too weak. 4576 trivial. 0 not checked. [2022-07-13 13:01:18,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1563710108] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 13:01:18,323 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 13:01:18,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 15 [2022-07-13 13:01:18,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563107024] [2022-07-13 13:01:18,323 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 13:01:18,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-07-13 13:01:18,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 13:01:18,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-13 13:01:18,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2022-07-13 13:01:18,326 INFO L87 Difference]: Start difference. First operand 4988 states and 5127 transitions. Second operand has 15 states, 15 states have (on average 105.93333333333334) internal successors, (1589), 15 states have internal predecessors, (1589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 13:01:21,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 13:01:21,267 INFO L93 Difference]: Finished difference Result 14795 states and 15274 transitions. [2022-07-13 13:01:21,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-13 13:01:21,268 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 105.93333333333334) internal successors, (1589), 15 states have internal predecessors, (1589), 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 1632 [2022-07-13 13:01:21,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 13:01:21,269 INFO L225 Difference]: With dead ends: 14795 [2022-07-13 13:01:21,269 INFO L226 Difference]: Without dead ends: 0 [2022-07-13 13:01:21,274 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3286 GetRequests, 3264 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=168, Invalid=384, Unknown=0, NotChecked=0, Total=552 [2022-07-13 13:01:21,275 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 1179 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 5460 mSolverCounterSat, 230 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1179 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 6632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 230 IncrementalHoareTripleChecker+Valid, 5460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 942 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-07-13 13:01:21,275 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1179 Valid, 117 Invalid, 6632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [230 Valid, 5460 Invalid, 0 Unknown, 942 Unchecked, 2.7s Time] [2022-07-13 13:01:21,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-13 13:01:21,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-13 13:01:21,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 13:01:21,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-13 13:01:21,276 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1632 [2022-07-13 13:01:21,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 13:01:21,276 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-13 13:01:21,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 105.93333333333334) internal successors, (1589), 15 states have internal predecessors, (1589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 13:01:21,277 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-13 13:01:21,277 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-13 13:01:21,278 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-13 13:01:21,302 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-07-13 13:01:21,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-07-13 13:01:21,481 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-13 13:01:30,185 INFO L899 garLoopResultBuilder]: For program point L762(lines 762 880) no Hoare annotation was computed. [2022-07-13 13:01:30,185 INFO L899 garLoopResultBuilder]: For program point L895(line 895) no Hoare annotation was computed. [2022-07-13 13:01:30,185 INFO L899 garLoopResultBuilder]: For program point L829(lines 829 880) no Hoare annotation was computed. [2022-07-13 13:01:30,185 INFO L899 garLoopResultBuilder]: For program point L631(lines 631 880) no Hoare annotation was computed. [2022-07-13 13:01:30,185 INFO L899 garLoopResultBuilder]: For program point L565(lines 565 880) no Hoare annotation was computed. [2022-07-13 13:01:30,186 INFO L899 garLoopResultBuilder]: For program point L169-1(lines 30 882) no Hoare annotation was computed. [2022-07-13 13:01:30,186 INFO L899 garLoopResultBuilder]: For program point L103-1(lines 30 882) no Hoare annotation was computed. [2022-07-13 13:01:30,186 INFO L899 garLoopResultBuilder]: For program point L37-1(lines 30 882) no Hoare annotation was computed. [2022-07-13 13:01:30,186 INFO L899 garLoopResultBuilder]: For program point L698(lines 698 880) no Hoare annotation was computed. [2022-07-13 13:01:30,186 INFO L899 garLoopResultBuilder]: For program point L500(lines 500 880) no Hoare annotation was computed. [2022-07-13 13:01:30,186 INFO L899 garLoopResultBuilder]: For program point L170(line 170) no Hoare annotation was computed. [2022-07-13 13:01:30,186 INFO L899 garLoopResultBuilder]: For program point L104(line 104) no Hoare annotation was computed. [2022-07-13 13:01:30,186 INFO L899 garLoopResultBuilder]: For program point L38(line 38) no Hoare annotation was computed. [2022-07-13 13:01:30,187 INFO L899 garLoopResultBuilder]: For program point L369(lines 369 880) no Hoare annotation was computed. [2022-07-13 13:01:30,187 INFO L899 garLoopResultBuilder]: For program point L303(lines 303 880) no Hoare annotation was computed. [2022-07-13 13:01:30,187 INFO L899 garLoopResultBuilder]: For program point L436(lines 436 880) no Hoare annotation was computed. [2022-07-13 13:01:30,187 INFO L899 garLoopResultBuilder]: For program point L172-1(lines 30 882) no Hoare annotation was computed. [2022-07-13 13:01:30,187 INFO L899 garLoopResultBuilder]: For program point L106-1(lines 30 882) no Hoare annotation was computed. [2022-07-13 13:01:30,187 INFO L899 garLoopResultBuilder]: For program point L40-1(lines 30 882) no Hoare annotation was computed. [2022-07-13 13:01:30,187 INFO L899 garLoopResultBuilder]: For program point L239(lines 239 880) no Hoare annotation was computed. [2022-07-13 13:01:30,187 INFO L899 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2022-07-13 13:01:30,187 INFO L899 garLoopResultBuilder]: For program point L107(line 107) no Hoare annotation was computed. [2022-07-13 13:01:30,187 INFO L899 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2022-07-13 13:01:30,188 INFO L899 garLoopResultBuilder]: For program point L768(lines 768 880) no Hoare annotation was computed. [2022-07-13 13:01:30,188 INFO L899 garLoopResultBuilder]: For program point L636(lines 636 880) no Hoare annotation was computed. [2022-07-13 13:01:30,188 INFO L899 garLoopResultBuilder]: For program point L835(lines 835 880) no Hoare annotation was computed. [2022-07-13 13:01:30,188 INFO L899 garLoopResultBuilder]: For program point L571(lines 571 880) no Hoare annotation was computed. [2022-07-13 13:01:30,188 INFO L899 garLoopResultBuilder]: For program point L505(lines 505 880) no Hoare annotation was computed. [2022-07-13 13:01:30,188 INFO L899 garLoopResultBuilder]: For program point L175-1(lines 30 882) no Hoare annotation was computed. [2022-07-13 13:01:30,188 INFO L899 garLoopResultBuilder]: For program point L109-1(lines 30 882) no Hoare annotation was computed. [2022-07-13 13:01:30,188 INFO L899 garLoopResultBuilder]: For program point L43-1(lines 30 882) no Hoare annotation was computed. [2022-07-13 13:01:30,188 INFO L899 garLoopResultBuilder]: For program point L704(lines 704 880) no Hoare annotation was computed. [2022-07-13 13:01:30,188 INFO L899 garLoopResultBuilder]: For program point L176(line 176) no Hoare annotation was computed. [2022-07-13 13:01:30,189 INFO L899 garLoopResultBuilder]: For program point L110(line 110) no Hoare annotation was computed. [2022-07-13 13:01:30,189 INFO L899 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2022-07-13 13:01:30,189 INFO L899 garLoopResultBuilder]: For program point L309(lines 309 880) no Hoare annotation was computed. [2022-07-13 13:01:30,189 INFO L899 garLoopResultBuilder]: For program point L442(lines 442 880) no Hoare annotation was computed. [2022-07-13 13:01:30,189 INFO L899 garLoopResultBuilder]: For program point L376(lines 376 880) no Hoare annotation was computed. [2022-07-13 13:01:30,189 INFO L899 garLoopResultBuilder]: For program point L178-1(lines 30 882) no Hoare annotation was computed. [2022-07-13 13:01:30,189 INFO L899 garLoopResultBuilder]: For program point L112-1(lines 30 882) no Hoare annotation was computed. [2022-07-13 13:01:30,189 INFO L899 garLoopResultBuilder]: For program point L46-1(lines 30 882) no Hoare annotation was computed. [2022-07-13 13:01:30,189 INFO L899 garLoopResultBuilder]: For program point L245(lines 245 880) no Hoare annotation was computed. [2022-07-13 13:01:30,189 INFO L899 garLoopResultBuilder]: For program point L179(line 179) no Hoare annotation was computed. [2022-07-13 13:01:30,190 INFO L899 garLoopResultBuilder]: For program point L113(line 113) no Hoare annotation was computed. [2022-07-13 13:01:30,190 INFO L899 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2022-07-13 13:01:30,190 INFO L899 garLoopResultBuilder]: For program point L774(lines 774 880) no Hoare annotation was computed. [2022-07-13 13:01:30,190 INFO L899 garLoopResultBuilder]: For program point L642(lines 642 880) no Hoare annotation was computed. [2022-07-13 13:01:30,190 INFO L899 garLoopResultBuilder]: For program point L510(lines 510 880) no Hoare annotation was computed. [2022-07-13 13:01:30,190 INFO L899 garLoopResultBuilder]: For program point L841(lines 841 880) no Hoare annotation was computed. [2022-07-13 13:01:30,190 INFO L899 garLoopResultBuilder]: For program point L181-1(lines 30 882) no Hoare annotation was computed. [2022-07-13 13:01:30,190 INFO L899 garLoopResultBuilder]: For program point L115-1(lines 30 882) no Hoare annotation was computed. [2022-07-13 13:01:30,190 INFO L899 garLoopResultBuilder]: For program point L49-1(lines 30 882) no Hoare annotation was computed. [2022-07-13 13:01:30,190 INFO L899 garLoopResultBuilder]: For program point L710(lines 710 880) no Hoare annotation was computed. [2022-07-13 13:01:30,191 INFO L899 garLoopResultBuilder]: For program point L578(lines 578 880) no Hoare annotation was computed. [2022-07-13 13:01:30,191 INFO L899 garLoopResultBuilder]: For program point L182(line 182) no Hoare annotation was computed. [2022-07-13 13:01:30,191 INFO L899 garLoopResultBuilder]: For program point L116(line 116) no Hoare annotation was computed. [2022-07-13 13:01:30,191 INFO L899 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2022-07-13 13:01:30,191 INFO L899 garLoopResultBuilder]: For program point L315(lines 315 880) no Hoare annotation was computed. [2022-07-13 13:01:30,191 INFO L899 garLoopResultBuilder]: For program point L448(lines 448 880) no Hoare annotation was computed. [2022-07-13 13:01:30,191 INFO L899 garLoopResultBuilder]: For program point L382(lines 382 880) no Hoare annotation was computed. [2022-07-13 13:01:30,191 INFO L899 garLoopResultBuilder]: For program point L184-1(lines 30 882) no Hoare annotation was computed. [2022-07-13 13:01:30,191 INFO L899 garLoopResultBuilder]: For program point L118-1(lines 30 882) no Hoare annotation was computed. [2022-07-13 13:01:30,191 INFO L899 garLoopResultBuilder]: For program point L52-1(lines 30 882) no Hoare annotation was computed. [2022-07-13 13:01:30,192 INFO L899 garLoopResultBuilder]: For program point L251(lines 251 880) no Hoare annotation was computed. [2022-07-13 13:01:30,192 INFO L899 garLoopResultBuilder]: For program point L185(line 185) no Hoare annotation was computed. [2022-07-13 13:01:30,192 INFO L899 garLoopResultBuilder]: For program point L119(line 119) no Hoare annotation was computed. [2022-07-13 13:01:30,192 INFO L899 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2022-07-13 13:01:30,192 INFO L899 garLoopResultBuilder]: For program point L648(lines 648 880) no Hoare annotation was computed. [2022-07-13 13:01:30,192 INFO L899 garLoopResultBuilder]: For program point L516(lines 516 880) no Hoare annotation was computed. [2022-07-13 13:01:30,192 INFO L899 garLoopResultBuilder]: For program point L847(lines 847 880) no Hoare annotation was computed. [2022-07-13 13:01:30,192 INFO L899 garLoopResultBuilder]: For program point L781(lines 781 880) no Hoare annotation was computed. [2022-07-13 13:01:30,192 INFO L899 garLoopResultBuilder]: For program point L583(lines 583 880) no Hoare annotation was computed. [2022-07-13 13:01:30,192 INFO L899 garLoopResultBuilder]: For program point L187-1(lines 30 882) no Hoare annotation was computed. [2022-07-13 13:01:30,193 INFO L899 garLoopResultBuilder]: For program point L121-1(lines 30 882) no Hoare annotation was computed. [2022-07-13 13:01:30,193 INFO L899 garLoopResultBuilder]: For program point L55-1(lines 30 882) no Hoare annotation was computed. [2022-07-13 13:01:30,193 INFO L899 garLoopResultBuilder]: For program point L716(lines 716 880) no Hoare annotation was computed. [2022-07-13 13:01:30,193 INFO L899 garLoopResultBuilder]: For program point L188(line 188) no Hoare annotation was computed. [2022-07-13 13:01:30,193 INFO L899 garLoopResultBuilder]: For program point L122(line 122) no Hoare annotation was computed. [2022-07-13 13:01:30,193 INFO L899 garLoopResultBuilder]: For program point L56(line 56) no Hoare annotation was computed. [2022-07-13 13:01:30,193 INFO L899 garLoopResultBuilder]: For program point L321(lines 321 880) no Hoare annotation was computed. [2022-07-13 13:01:30,193 INFO L899 garLoopResultBuilder]: For program point L454(lines 454 880) no Hoare annotation was computed. [2022-07-13 13:01:30,193 INFO L899 garLoopResultBuilder]: For program point L388(lines 388 880) no Hoare annotation was computed. [2022-07-13 13:01:30,193 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-13 13:01:30,194 INFO L899 garLoopResultBuilder]: For program point L190-1(lines 30 882) no Hoare annotation was computed. [2022-07-13 13:01:30,194 INFO L899 garLoopResultBuilder]: For program point L124-1(lines 30 882) no Hoare annotation was computed. [2022-07-13 13:01:30,194 INFO L899 garLoopResultBuilder]: For program point L58-1(lines 30 882) no Hoare annotation was computed. [2022-07-13 13:01:30,194 INFO L899 garLoopResultBuilder]: For program point L257(lines 257 880) no Hoare annotation was computed. [2022-07-13 13:01:30,194 INFO L899 garLoopResultBuilder]: For program point L191(line 191) no Hoare annotation was computed. [2022-07-13 13:01:30,194 INFO L899 garLoopResultBuilder]: For program point L125(line 125) no Hoare annotation was computed. [2022-07-13 13:01:30,194 INFO L899 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2022-07-13 13:01:30,194 INFO L899 garLoopResultBuilder]: For program point L852(lines 852 880) no Hoare annotation was computed. [2022-07-13 13:01:30,194 INFO L899 garLoopResultBuilder]: For program point L654(lines 654 880) no Hoare annotation was computed. [2022-07-13 13:01:30,194 INFO L899 garLoopResultBuilder]: For program point L522(lines 522 880) no Hoare annotation was computed. [2022-07-13 13:01:30,195 INFO L899 garLoopResultBuilder]: For program point L787(lines 787 880) no Hoare annotation was computed. [2022-07-13 13:01:30,195 INFO L899 garLoopResultBuilder]: For program point L589(lines 589 880) no Hoare annotation was computed. [2022-07-13 13:01:30,195 INFO L899 garLoopResultBuilder]: For program point L193-1(lines 30 882) no Hoare annotation was computed. [2022-07-13 13:01:30,195 INFO L899 garLoopResultBuilder]: For program point L127-1(lines 30 882) no Hoare annotation was computed. [2022-07-13 13:01:30,195 INFO L899 garLoopResultBuilder]: For program point L61-1(lines 30 882) no Hoare annotation was computed. [2022-07-13 13:01:30,195 INFO L899 garLoopResultBuilder]: For program point L722(lines 722 880) no Hoare annotation was computed. [2022-07-13 13:01:30,195 INFO L899 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2022-07-13 13:01:30,195 INFO L899 garLoopResultBuilder]: For program point L128(line 128) no Hoare annotation was computed. [2022-07-13 13:01:30,195 INFO L899 garLoopResultBuilder]: For program point L62(line 62) no Hoare annotation was computed. [2022-07-13 13:01:30,195 INFO L899 garLoopResultBuilder]: For program point L459(lines 459 880) no Hoare annotation was computed. [2022-07-13 13:01:30,195 INFO L899 garLoopResultBuilder]: For program point L327(lines 327 880) no Hoare annotation was computed. [2022-07-13 13:01:30,196 INFO L899 garLoopResultBuilder]: For program point L394(lines 394 880) no Hoare annotation was computed. [2022-07-13 13:01:30,196 INFO L899 garLoopResultBuilder]: For program point L262(lines 262 880) no Hoare annotation was computed. [2022-07-13 13:01:30,196 INFO L899 garLoopResultBuilder]: For program point L196-1(lines 30 882) no Hoare annotation was computed. [2022-07-13 13:01:30,196 INFO L899 garLoopResultBuilder]: For program point L130-1(lines 30 882) no Hoare annotation was computed. [2022-07-13 13:01:30,196 INFO L899 garLoopResultBuilder]: For program point L64-1(lines 30 882) no Hoare annotation was computed. [2022-07-13 13:01:30,196 INFO L899 garLoopResultBuilder]: For program point L197(line 197) no Hoare annotation was computed. [2022-07-13 13:01:30,196 INFO L899 garLoopResultBuilder]: For program point L131(line 131) no Hoare annotation was computed. [2022-07-13 13:01:30,196 INFO L899 garLoopResultBuilder]: For program point L65(line 65) no Hoare annotation was computed. [2022-07-13 13:01:30,196 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-13 13:01:30,196 INFO L899 garLoopResultBuilder]: For program point L858(lines 858 880) no Hoare annotation was computed. [2022-07-13 13:01:30,197 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 122) no Hoare annotation was computed. [2022-07-13 13:01:30,197 INFO L899 garLoopResultBuilder]: For program point L660(lines 660 880) no Hoare annotation was computed. [2022-07-13 13:01:30,197 INFO L899 garLoopResultBuilder]: For program point L528(lines 528 880) no Hoare annotation was computed. [2022-07-13 13:01:30,197 INFO L899 garLoopResultBuilder]: For program point L793(lines 793 880) no Hoare annotation was computed. [2022-07-13 13:01:30,197 INFO L899 garLoopResultBuilder]: For program point L595(lines 595 880) no Hoare annotation was computed. [2022-07-13 13:01:30,197 INFO L899 garLoopResultBuilder]: For program point L199-1(lines 30 882) no Hoare annotation was computed. [2022-07-13 13:01:30,197 INFO L899 garLoopResultBuilder]: For program point L133-1(lines 30 882) no Hoare annotation was computed. [2022-07-13 13:01:30,197 INFO L899 garLoopResultBuilder]: For program point L67-1(lines 30 882) no Hoare annotation was computed. [2022-07-13 13:01:30,197 INFO L899 garLoopResultBuilder]: For program point L728(lines 728 880) no Hoare annotation was computed. [2022-07-13 13:01:30,197 INFO L899 garLoopResultBuilder]: For program point L464(lines 464 880) no Hoare annotation was computed. [2022-07-13 13:01:30,197 INFO L899 garLoopResultBuilder]: For program point L200(line 200) no Hoare annotation was computed. [2022-07-13 13:01:30,198 INFO L899 garLoopResultBuilder]: For program point L134(line 134) no Hoare annotation was computed. [2022-07-13 13:01:30,198 INFO L899 garLoopResultBuilder]: For program point L68(line 68) no Hoare annotation was computed. [2022-07-13 13:01:30,198 INFO L899 garLoopResultBuilder]: For program point L333(lines 333 880) no Hoare annotation was computed. [2022-07-13 13:01:30,198 INFO L899 garLoopResultBuilder]: For program point L400(lines 400 880) no Hoare annotation was computed. [2022-07-13 13:01:30,198 INFO L899 garLoopResultBuilder]: For program point L268(lines 268 880) no Hoare annotation was computed. [2022-07-13 13:01:30,198 INFO L899 garLoopResultBuilder]: For program point L202-1(lines 30 882) no Hoare annotation was computed. [2022-07-13 13:01:30,198 INFO L899 garLoopResultBuilder]: For program point L136-1(lines 30 882) no Hoare annotation was computed. [2022-07-13 13:01:30,198 INFO L899 garLoopResultBuilder]: For program point L70-1(lines 30 882) no Hoare annotation was computed. [2022-07-13 13:01:30,198 INFO L899 garLoopResultBuilder]: For program point L203(line 203) no Hoare annotation was computed. [2022-07-13 13:01:30,198 INFO L899 garLoopResultBuilder]: For program point L137(line 137) no Hoare annotation was computed. [2022-07-13 13:01:30,199 INFO L899 garLoopResultBuilder]: For program point L71(line 71) no Hoare annotation was computed. [2022-07-13 13:01:30,199 INFO L899 garLoopResultBuilder]: For program point L864(lines 864 880) no Hoare annotation was computed. [2022-07-13 13:01:30,199 INFO L899 garLoopResultBuilder]: For program point L666(lines 666 880) no Hoare annotation was computed. [2022-07-13 13:01:30,199 INFO L899 garLoopResultBuilder]: For program point L534(lines 534 880) no Hoare annotation was computed. [2022-07-13 13:01:30,199 INFO L899 garLoopResultBuilder]: For program point L799(lines 799 880) no Hoare annotation was computed. [2022-07-13 13:01:30,199 INFO L899 garLoopResultBuilder]: For program point L601(lines 601 880) no Hoare annotation was computed. [2022-07-13 13:01:30,199 INFO L899 garLoopResultBuilder]: For program point L205-1(lines 30 882) no Hoare annotation was computed. [2022-07-13 13:01:30,199 INFO L899 garLoopResultBuilder]: For program point L139-1(lines 30 882) no Hoare annotation was computed. [2022-07-13 13:01:30,199 INFO L899 garLoopResultBuilder]: For program point L73-1(lines 30 882) no Hoare annotation was computed. [2022-07-13 13:01:30,199 INFO L899 garLoopResultBuilder]: For program point L734(lines 734 880) no Hoare annotation was computed. [2022-07-13 13:01:30,199 INFO L899 garLoopResultBuilder]: For program point L470(lines 470 880) no Hoare annotation was computed. [2022-07-13 13:01:30,200 INFO L899 garLoopResultBuilder]: For program point L206(line 206) no Hoare annotation was computed. [2022-07-13 13:01:30,200 INFO L899 garLoopResultBuilder]: For program point L140(line 140) no Hoare annotation was computed. [2022-07-13 13:01:30,200 INFO L899 garLoopResultBuilder]: For program point L74(line 74) no Hoare annotation was computed. [2022-07-13 13:01:30,200 INFO L899 garLoopResultBuilder]: For program point L339(lines 339 880) no Hoare annotation was computed. [2022-07-13 13:01:30,200 INFO L899 garLoopResultBuilder]: For program point L406(lines 406 880) no Hoare annotation was computed. [2022-07-13 13:01:30,200 INFO L899 garLoopResultBuilder]: For program point L274(lines 274 880) no Hoare annotation was computed. [2022-07-13 13:01:30,200 INFO L899 garLoopResultBuilder]: For program point L208-1(lines 30 882) no Hoare annotation was computed. [2022-07-13 13:01:30,200 INFO L899 garLoopResultBuilder]: For program point L142-1(lines 30 882) no Hoare annotation was computed. [2022-07-13 13:01:30,200 INFO L899 garLoopResultBuilder]: For program point L76-1(lines 30 882) no Hoare annotation was computed. [2022-07-13 13:01:30,200 INFO L899 garLoopResultBuilder]: For program point L869(lines 869 880) no Hoare annotation was computed. [2022-07-13 13:01:30,201 INFO L899 garLoopResultBuilder]: For program point L209(line 209) no Hoare annotation was computed. [2022-07-13 13:01:30,201 INFO L899 garLoopResultBuilder]: For program point L143(line 143) no Hoare annotation was computed. [2022-07-13 13:01:30,201 INFO L899 garLoopResultBuilder]: For program point L77(line 77) no Hoare annotation was computed. [2022-07-13 13:01:30,201 INFO L899 garLoopResultBuilder]: For program point L672(lines 672 880) no Hoare annotation was computed. [2022-07-13 13:01:30,201 INFO L899 garLoopResultBuilder]: For program point L540(lines 540 880) no Hoare annotation was computed. [2022-07-13 13:01:30,201 INFO L899 garLoopResultBuilder]: For program point L805(lines 805 880) no Hoare annotation was computed. [2022-07-13 13:01:30,201 INFO L899 garLoopResultBuilder]: For program point L607(lines 607 880) no Hoare annotation was computed. [2022-07-13 13:01:30,201 INFO L899 garLoopResultBuilder]: For program point L211-1(lines 30 882) no Hoare annotation was computed. [2022-07-13 13:01:30,201 INFO L899 garLoopResultBuilder]: For program point L145-1(lines 30 882) no Hoare annotation was computed. [2022-07-13 13:01:30,201 INFO L899 garLoopResultBuilder]: For program point L79-1(lines 30 882) no Hoare annotation was computed. [2022-07-13 13:01:30,201 INFO L899 garLoopResultBuilder]: For program point L740(lines 740 880) no Hoare annotation was computed. [2022-07-13 13:01:30,202 INFO L899 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2022-07-13 13:01:30,202 INFO L899 garLoopResultBuilder]: For program point L146(line 146) no Hoare annotation was computed. [2022-07-13 13:01:30,202 INFO L899 garLoopResultBuilder]: For program point L80(line 80) no Hoare annotation was computed. [2022-07-13 13:01:30,202 INFO L899 garLoopResultBuilder]: For program point L477(lines 477 880) no Hoare annotation was computed. [2022-07-13 13:01:30,202 INFO L899 garLoopResultBuilder]: For program point L345(lines 345 880) no Hoare annotation was computed. [2022-07-13 13:01:30,202 INFO L899 garLoopResultBuilder]: For program point L279(lines 279 880) no Hoare annotation was computed. [2022-07-13 13:01:30,202 INFO L899 garLoopResultBuilder]: For program point L412(lines 412 880) no Hoare annotation was computed. [2022-07-13 13:01:30,202 INFO L899 garLoopResultBuilder]: For program point L148-1(lines 30 882) no Hoare annotation was computed. [2022-07-13 13:01:30,202 INFO L899 garLoopResultBuilder]: For program point L82-1(lines 30 882) no Hoare annotation was computed. [2022-07-13 13:01:30,202 INFO L899 garLoopResultBuilder]: For program point L875(lines 875 880) no Hoare annotation was computed. [2022-07-13 13:01:30,203 INFO L899 garLoopResultBuilder]: For program point L149(line 149) no Hoare annotation was computed. [2022-07-13 13:01:30,203 INFO L899 garLoopResultBuilder]: For program point L83(line 83) no Hoare annotation was computed. [2022-07-13 13:01:30,203 INFO L899 garLoopResultBuilder]: For program point L678(lines 678 880) no Hoare annotation was computed. [2022-07-13 13:01:30,203 INFO L899 garLoopResultBuilder]: For program point L546(lines 546 880) no Hoare annotation was computed. [2022-07-13 13:01:30,203 INFO L899 garLoopResultBuilder]: For program point L811(lines 811 880) no Hoare annotation was computed. [2022-07-13 13:01:30,203 INFO L899 garLoopResultBuilder]: For program point L745(lines 745 880) no Hoare annotation was computed. [2022-07-13 13:01:30,203 INFO L899 garLoopResultBuilder]: For program point L613(lines 613 880) no Hoare annotation was computed. [2022-07-13 13:01:30,203 INFO L899 garLoopResultBuilder]: For program point L151-1(lines 30 882) no Hoare annotation was computed. [2022-07-13 13:01:30,203 INFO L899 garLoopResultBuilder]: For program point L85-1(lines 30 882) no Hoare annotation was computed. [2022-07-13 13:01:30,203 INFO L899 garLoopResultBuilder]: For program point L482(lines 482 880) no Hoare annotation was computed. [2022-07-13 13:01:30,204 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-13 13:01:30,204 INFO L899 garLoopResultBuilder]: For program point L152(line 152) no Hoare annotation was computed. [2022-07-13 13:01:30,204 INFO L899 garLoopResultBuilder]: For program point L86(line 86) no Hoare annotation was computed. [2022-07-13 13:01:30,204 INFO L899 garLoopResultBuilder]: For program point L351(lines 351 880) no Hoare annotation was computed. [2022-07-13 13:01:30,204 INFO L899 garLoopResultBuilder]: For program point L285(lines 285 880) no Hoare annotation was computed. [2022-07-13 13:01:30,204 INFO L899 garLoopResultBuilder]: For program point L418(lines 418 880) no Hoare annotation was computed. [2022-07-13 13:01:30,204 INFO L899 garLoopResultBuilder]: For program point L154-1(lines 30 882) no Hoare annotation was computed. [2022-07-13 13:01:30,204 INFO L899 garLoopResultBuilder]: For program point L88-1(lines 30 882) no Hoare annotation was computed. [2022-07-13 13:01:30,205 INFO L895 garLoopResultBuilder]: At program point L881(lines 30 882) the Hoare annotation is: (let ((.cse6 (* ~a12~0 9)) (.cse12 (+ ~a12~0 43))) (let ((.cse0 (<= 9 ~a21~0)) (.cse2 (< 80 ~a12~0)) (.cse8 (<= .cse12 0)) (.cse10 (<= 7 ~a21~0)) (.cse11 (<= ~a21~0 7)) (.cse5 (< 0 .cse12)) (.cse3 (<= (div .cse6 10) 546080)) (.cse9 (<= ~a15~0 6)) (.cse1 (= ~a24~0 1)) (.cse7 (<= ~a15~0 8)) (.cse4 (<= ~a21~0 6))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse1 (<= 8 ~a21~0) (<= ~a21~0 8) .cse3) (and .cse1 .cse4 .cse5 (<= (div (+ .cse6 858807) 10) 546080)) (and .cse0 .cse1 .cse7 (not .cse8) (not .cse2)) (and .cse8 .cse9) (and .cse1 (<= 10 ~a21~0) .cse3) (and .cse1 .cse10 .cse11 .cse5 (<= 8 ~a15~0) .cse3) (and .cse8 .cse1 .cse10 .cse7 .cse11) (and .cse1 .cse7 .cse4 .cse5 .cse3) (and (<= ~a21~0 9) .cse1 .cse9) (and .cse1 .cse7 .cse4 (<= (+ 49 ~a12~0) 0))))) [2022-07-13 13:01:30,205 INFO L899 garLoopResultBuilder]: For program point L551(lines 551 880) no Hoare annotation was computed. [2022-07-13 13:01:30,205 INFO L899 garLoopResultBuilder]: For program point L221(lines 221 880) no Hoare annotation was computed. [2022-07-13 13:01:30,205 INFO L899 garLoopResultBuilder]: For program point L155(line 155) no Hoare annotation was computed. [2022-07-13 13:01:30,205 INFO L899 garLoopResultBuilder]: For program point L89(line 89) no Hoare annotation was computed. [2022-07-13 13:01:30,205 INFO L899 garLoopResultBuilder]: For program point L684(lines 684 880) no Hoare annotation was computed. [2022-07-13 13:01:30,205 INFO L899 garLoopResultBuilder]: For program point L817(lines 817 880) no Hoare annotation was computed. [2022-07-13 13:01:30,205 INFO L899 garLoopResultBuilder]: For program point L751(lines 751 880) no Hoare annotation was computed. [2022-07-13 13:01:30,205 INFO L899 garLoopResultBuilder]: For program point L619(lines 619 880) no Hoare annotation was computed. [2022-07-13 13:01:30,205 INFO L899 garLoopResultBuilder]: For program point L157-1(lines 30 882) no Hoare annotation was computed. [2022-07-13 13:01:30,206 INFO L899 garLoopResultBuilder]: For program point L91-1(lines 30 882) no Hoare annotation was computed. [2022-07-13 13:01:30,206 INFO L902 garLoopResultBuilder]: At program point L884(lines 884 900) the Hoare annotation is: true [2022-07-13 13:01:30,206 INFO L899 garLoopResultBuilder]: For program point L488(lines 488 880) no Hoare annotation was computed. [2022-07-13 13:01:30,206 INFO L899 garLoopResultBuilder]: For program point L290(lines 290 880) no Hoare annotation was computed. [2022-07-13 13:01:30,206 INFO L899 garLoopResultBuilder]: For program point L158(line 158) no Hoare annotation was computed. [2022-07-13 13:01:30,206 INFO L899 garLoopResultBuilder]: For program point L92(line 92) no Hoare annotation was computed. [2022-07-13 13:01:30,206 INFO L899 garLoopResultBuilder]: For program point L687(lines 687 880) no Hoare annotation was computed. [2022-07-13 13:01:30,206 INFO L899 garLoopResultBuilder]: For program point L357(lines 357 880) no Hoare annotation was computed. [2022-07-13 13:01:30,206 INFO L899 garLoopResultBuilder]: For program point L424(lines 424 880) no Hoare annotation was computed. [2022-07-13 13:01:30,206 INFO L899 garLoopResultBuilder]: For program point L160-1(lines 30 882) no Hoare annotation was computed. [2022-07-13 13:01:30,206 INFO L899 garLoopResultBuilder]: For program point L94-1(lines 30 882) no Hoare annotation was computed. [2022-07-13 13:01:30,207 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-13 13:01:30,207 INFO L899 garLoopResultBuilder]: For program point L557(lines 557 880) no Hoare annotation was computed. [2022-07-13 13:01:30,207 INFO L899 garLoopResultBuilder]: For program point L227(lines 227 880) no Hoare annotation was computed. [2022-07-13 13:01:30,207 INFO L899 garLoopResultBuilder]: For program point L161(line 161) no Hoare annotation was computed. [2022-07-13 13:01:30,208 INFO L899 garLoopResultBuilder]: For program point L95(line 95) no Hoare annotation was computed. [2022-07-13 13:01:30,208 INFO L899 garLoopResultBuilder]: For program point L757(lines 757 880) no Hoare annotation was computed. [2022-07-13 13:01:30,208 INFO L899 garLoopResultBuilder]: For program point L625(lines 625 880) no Hoare annotation was computed. [2022-07-13 13:01:30,208 INFO L899 garLoopResultBuilder]: For program point L163-1(lines 30 882) no Hoare annotation was computed. [2022-07-13 13:01:30,208 INFO L899 garLoopResultBuilder]: For program point L97-1(lines 30 882) no Hoare annotation was computed. [2022-07-13 13:01:30,208 INFO L899 garLoopResultBuilder]: For program point L31(lines 31 33) no Hoare annotation was computed. [2022-07-13 13:01:30,208 INFO L899 garLoopResultBuilder]: For program point L31-2(lines 30 882) no Hoare annotation was computed. [2022-07-13 13:01:30,208 INFO L899 garLoopResultBuilder]: For program point L824(lines 824 880) no Hoare annotation was computed. [2022-07-13 13:01:30,209 INFO L895 garLoopResultBuilder]: At program point L890-2(lines 890 899) the Hoare annotation is: (let ((.cse6 (* ~a12~0 9)) (.cse12 (+ ~a12~0 43))) (let ((.cse0 (<= 9 ~a21~0)) (.cse2 (< 80 ~a12~0)) (.cse8 (<= .cse12 0)) (.cse10 (<= 7 ~a21~0)) (.cse11 (<= ~a21~0 7)) (.cse5 (< 0 .cse12)) (.cse3 (<= (div .cse6 10) 546080)) (.cse9 (<= ~a15~0 6)) (.cse1 (= ~a24~0 1)) (.cse7 (<= ~a15~0 8)) (.cse4 (<= ~a21~0 6))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse1 (<= 8 ~a21~0) (<= ~a21~0 8) .cse3) (and .cse1 .cse4 .cse5 (<= (div (+ .cse6 858807) 10) 546080)) (and .cse0 .cse1 .cse7 (not .cse8) (not .cse2)) (and .cse8 .cse9) (and .cse1 (<= 10 ~a21~0) .cse3) (and .cse1 .cse10 .cse11 .cse5 (<= 8 ~a15~0) .cse3) (and .cse8 .cse1 .cse10 .cse7 .cse11) (and .cse1 .cse7 .cse4 .cse5 .cse3) (and (<= ~a21~0 9) .cse1 .cse9) (and .cse1 .cse7 .cse4 (<= (+ 49 ~a12~0) 0))))) [2022-07-13 13:01:30,209 INFO L899 garLoopResultBuilder]: For program point L494(lines 494 880) no Hoare annotation was computed. [2022-07-13 13:01:30,209 INFO L899 garLoopResultBuilder]: For program point L296(lines 296 880) no Hoare annotation was computed. [2022-07-13 13:01:30,209 INFO L899 garLoopResultBuilder]: For program point L164(line 164) no Hoare annotation was computed. [2022-07-13 13:01:30,209 INFO L899 garLoopResultBuilder]: For program point L98(line 98) no Hoare annotation was computed. [2022-07-13 13:01:30,209 INFO L899 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2022-07-13 13:01:30,209 INFO L899 garLoopResultBuilder]: For program point L693(lines 693 880) no Hoare annotation was computed. [2022-07-13 13:01:30,209 INFO L899 garLoopResultBuilder]: For program point L363(lines 363 880) no Hoare annotation was computed. [2022-07-13 13:01:30,209 INFO L899 garLoopResultBuilder]: For program point L562(lines 562 880) no Hoare annotation was computed. [2022-07-13 13:01:30,210 INFO L899 garLoopResultBuilder]: For program point L430(lines 430 880) no Hoare annotation was computed. [2022-07-13 13:01:30,210 INFO L899 garLoopResultBuilder]: For program point L166-1(lines 30 882) no Hoare annotation was computed. [2022-07-13 13:01:30,210 INFO L899 garLoopResultBuilder]: For program point L100-1(lines 30 882) no Hoare annotation was computed. [2022-07-13 13:01:30,210 INFO L899 garLoopResultBuilder]: For program point L34-1(lines 30 882) no Hoare annotation was computed. [2022-07-13 13:01:30,210 INFO L899 garLoopResultBuilder]: For program point L233(lines 233 880) no Hoare annotation was computed. [2022-07-13 13:01:30,210 INFO L899 garLoopResultBuilder]: For program point L167(line 167) no Hoare annotation was computed. [2022-07-13 13:01:30,210 INFO L899 garLoopResultBuilder]: For program point L101(line 101) no Hoare annotation was computed. [2022-07-13 13:01:30,210 INFO L899 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2022-07-13 13:01:30,213 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 13:01:30,215 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-13 13:01:30,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.07 01:01:30 BoogieIcfgContainer [2022-07-13 13:01:30,246 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-13 13:01:30,247 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-13 13:01:30,247 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-13 13:01:30,247 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-13 13:01:30,248 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 01:00:52" (3/4) ... [2022-07-13 13:01:30,250 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-13 13:01:30,270 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-07-13 13:01:30,271 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-07-13 13:01:30,272 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-13 13:01:30,272 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-13 13:01:30,357 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-13 13:01:30,358 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-13 13:01:30,358 INFO L158 Benchmark]: Toolchain (without parser) took 39917.23ms. Allocated memory was 102.8MB in the beginning and 708.8MB in the end (delta: 606.1MB). Free memory was 67.9MB in the beginning and 299.9MB in the end (delta: -232.0MB). Peak memory consumption was 374.9MB. Max. memory is 16.1GB. [2022-07-13 13:01:30,358 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 102.8MB. Free memory was 57.5MB in the beginning and 57.5MB in the end (delta: 47.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 13:01:30,358 INFO L158 Benchmark]: CACSL2BoogieTranslator took 462.47ms. Allocated memory is still 102.8MB. Free memory was 67.7MB in the beginning and 55.7MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-13 13:01:30,359 INFO L158 Benchmark]: Boogie Procedure Inliner took 110.14ms. Allocated memory was 102.8MB in the beginning and 132.1MB in the end (delta: 29.4MB). Free memory was 55.7MB in the beginning and 101.9MB in the end (delta: -46.2MB). Peak memory consumption was 15.4MB. Max. memory is 16.1GB. [2022-07-13 13:01:30,359 INFO L158 Benchmark]: Boogie Preprocessor took 79.57ms. Allocated memory is still 132.1MB. Free memory was 101.9MB in the beginning and 95.5MB in the end (delta: 6.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-07-13 13:01:30,360 INFO L158 Benchmark]: RCFGBuilder took 964.31ms. Allocated memory is still 132.1MB. Free memory was 95.5MB in the beginning and 73.9MB in the end (delta: 21.7MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. [2022-07-13 13:01:30,361 INFO L158 Benchmark]: TraceAbstraction took 38175.16ms. Allocated memory was 132.1MB in the beginning and 708.8MB in the end (delta: 576.7MB). Free memory was 73.0MB in the beginning and 311.4MB in the end (delta: -238.4MB). Peak memory consumption was 419.2MB. Max. memory is 16.1GB. [2022-07-13 13:01:30,361 INFO L158 Benchmark]: Witness Printer took 110.52ms. Allocated memory is still 708.8MB. Free memory was 311.4MB in the beginning and 299.9MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-13 13:01:30,367 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 102.8MB. Free memory was 57.5MB in the beginning and 57.5MB in the end (delta: 47.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 462.47ms. Allocated memory is still 102.8MB. Free memory was 67.7MB in the beginning and 55.7MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 110.14ms. Allocated memory was 102.8MB in the beginning and 132.1MB in the end (delta: 29.4MB). Free memory was 55.7MB in the beginning and 101.9MB in the end (delta: -46.2MB). Peak memory consumption was 15.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 79.57ms. Allocated memory is still 132.1MB. Free memory was 101.9MB in the beginning and 95.5MB in the end (delta: 6.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 964.31ms. Allocated memory is still 132.1MB. Free memory was 95.5MB in the beginning and 73.9MB in the end (delta: 21.7MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. * TraceAbstraction took 38175.16ms. Allocated memory was 132.1MB in the beginning and 708.8MB in the end (delta: 576.7MB). Free memory was 73.0MB in the beginning and 311.4MB in the end (delta: -238.4MB). Peak memory consumption was 419.2MB. Max. memory is 16.1GB. * Witness Printer took 110.52ms. Allocated memory is still 708.8MB. Free memory was 311.4MB in the beginning and 299.9MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. 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: 122]: 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, 245 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 38.1s, OverallIterations: 25, TraceHistogramMax: 14, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 13.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 8.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3753 SdHoareTripleChecker+Valid, 12.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3753 mSDsluCounter, 3056 SdHoareTripleChecker+Invalid, 9.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 942 IncrementalHoareTripleChecker+Unchecked, 248 mSDsCounter, 1350 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 18507 IncrementalHoareTripleChecker+Invalid, 20799 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1350 mSolverCounterUnsat, 2808 mSDtfsCounter, 18507 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12392 GetRequests, 12306 SyntacticMatches, 0 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5344occurred in iteration=16, InterpolantAutomatonStates: 96, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 25 MinimizatonAttempts, 5518 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 135 NumberOfFragments, 379 HoareAnnotationTreeSize, 3 FomulaSimplifications, 196462 FormulaSimplificationTreeSizeReduction, 7.5s HoareSimplificationTime, 3 FomulaSimplificationsInter, 121922 FormulaSimplificationTreeSizeReductionInter, 1.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 2.3s SatisfiabilityAnalysisTime, 7.8s InterpolantComputationTime, 26364 NumberOfCodeBlocks, 26364 NumberOfCodeBlocksAsserted, 38 NumberOfCheckSat, 28761 ConstructedInterpolants, 34 QuantifiedInterpolants, 88198 SizeOfPredicates, 2 NumberOfNonLiveVariables, 12458 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 40 InterpolantComputations, 23 PerfectInterpolantSequences, 84870/87766 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: 30]: Loop Invariant Derived loop invariant: ((((((((((((9 <= a21 && a24 == 1) && 80 < a12) && a12 * 9 / 10 <= 546080) || (((a24 == 1 && 8 <= a21) && a21 <= 8) && a12 * 9 / 10 <= 546080)) || (((a24 == 1 && a21 <= 6) && 0 < a12 + 43) && (a12 * 9 + 858807) / 10 <= 546080)) || ((((9 <= a21 && a24 == 1) && a15 <= 8) && !(a12 + 43 <= 0)) && !(80 < a12))) || (a12 + 43 <= 0 && a15 <= 6)) || ((a24 == 1 && 10 <= a21) && a12 * 9 / 10 <= 546080)) || (((((a24 == 1 && 7 <= a21) && a21 <= 7) && 0 < a12 + 43) && 8 <= a15) && a12 * 9 / 10 <= 546080)) || ((((a12 + 43 <= 0 && a24 == 1) && 7 <= a21) && a15 <= 8) && a21 <= 7)) || ((((a24 == 1 && a15 <= 8) && a21 <= 6) && 0 < a12 + 43) && a12 * 9 / 10 <= 546080)) || ((a21 <= 9 && a24 == 1) && a15 <= 6)) || (((a24 == 1 && a15 <= 8) && a21 <= 6) && 49 + a12 <= 0) - InvariantResult [Line: 884]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 890]: Loop Invariant Derived loop invariant: ((((((((((((9 <= a21 && a24 == 1) && 80 < a12) && a12 * 9 / 10 <= 546080) || (((a24 == 1 && 8 <= a21) && a21 <= 8) && a12 * 9 / 10 <= 546080)) || (((a24 == 1 && a21 <= 6) && 0 < a12 + 43) && (a12 * 9 + 858807) / 10 <= 546080)) || ((((9 <= a21 && a24 == 1) && a15 <= 8) && !(a12 + 43 <= 0)) && !(80 < a12))) || (a12 + 43 <= 0 && a15 <= 6)) || ((a24 == 1 && 10 <= a21) && a12 * 9 / 10 <= 546080)) || (((((a24 == 1 && 7 <= a21) && a21 <= 7) && 0 < a12 + 43) && 8 <= a15) && a12 * 9 / 10 <= 546080)) || ((((a12 + 43 <= 0 && a24 == 1) && 7 <= a21) && a15 <= 8) && a21 <= 7)) || ((((a24 == 1 && a15 <= 8) && a21 <= 6) && 0 < a12 + 43) && a12 * 9 / 10 <= 546080)) || ((a21 <= 9 && a24 == 1) && a15 <= 6)) || (((a24 == 1 && a15 <= 8) && a21 <= 6) && 49 + a12 <= 0) RESULT: Ultimate proved your program to be correct! [2022-07-13 13:01:30,393 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