./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem14_label24.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem14_label24.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 052d87c43f9a6a303e543fa72a6072828b82ea75a73030e4fb80f0f24076f245 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-17 04:44:20,535 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-17 04:44:20,537 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-17 04:44:20,575 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-17 04:44:20,575 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-17 04:44:20,578 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-17 04:44:20,579 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-17 04:44:20,581 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-17 04:44:20,582 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-17 04:44:20,585 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-17 04:44:20,586 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-17 04:44:20,587 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-17 04:44:20,587 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-17 04:44:20,589 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-17 04:44:20,590 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-17 04:44:20,593 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-17 04:44:20,593 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-17 04:44:20,594 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-17 04:44:20,596 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-17 04:44:20,599 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-17 04:44:20,600 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-17 04:44:20,601 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-17 04:44:20,602 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-17 04:44:20,603 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-17 04:44:20,604 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-17 04:44:20,605 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-17 04:44:20,605 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-17 04:44:20,606 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-17 04:44:20,606 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-17 04:44:20,607 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-17 04:44:20,607 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-17 04:44:20,607 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-17 04:44:20,609 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-17 04:44:20,609 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-17 04:44:20,610 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-17 04:44:20,610 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-17 04:44:20,611 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-17 04:44:20,612 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-17 04:44:20,612 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-17 04:44:20,612 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-17 04:44:20,613 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-17 04:44:20,614 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-17 04:44:20,638 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-17 04:44:20,639 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-17 04:44:20,639 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-17 04:44:20,639 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-17 04:44:20,640 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-17 04:44:20,640 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-17 04:44:20,641 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-17 04:44:20,641 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-17 04:44:20,641 INFO L138 SettingsManager]: * Use SBE=true [2021-12-17 04:44:20,641 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-17 04:44:20,642 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-17 04:44:20,642 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-17 04:44:20,642 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-17 04:44:20,642 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-17 04:44:20,642 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-17 04:44:20,642 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-17 04:44:20,642 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-17 04:44:20,643 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-17 04:44:20,643 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-17 04:44:20,643 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-17 04:44:20,643 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-17 04:44:20,643 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-17 04:44:20,643 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-17 04:44:20,643 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-17 04:44:20,643 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 04:44:20,644 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-17 04:44:20,644 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-17 04:44:20,645 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-17 04:44:20,645 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-17 04:44:20,645 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-17 04:44:20,645 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-17 04:44:20,645 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-17 04:44:20,646 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-17 04:44:20,646 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-17 04:44:20,646 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 052d87c43f9a6a303e543fa72a6072828b82ea75a73030e4fb80f0f24076f245 [2021-12-17 04:44:20,843 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-17 04:44:20,863 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-17 04:44:20,865 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-17 04:44:20,866 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-17 04:44:20,867 INFO L275 PluginConnector]: CDTParser initialized [2021-12-17 04:44:20,868 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem14_label24.c [2021-12-17 04:44:20,921 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ea94c77f/98498aa8cbba4029b22d8bec6e06f660/FLAG40f3eaaa2 [2021-12-17 04:44:21,366 INFO L306 CDTParser]: Found 1 translation units. [2021-12-17 04:44:21,367 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label24.c [2021-12-17 04:44:21,384 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ea94c77f/98498aa8cbba4029b22d8bec6e06f660/FLAG40f3eaaa2 [2021-12-17 04:44:21,904 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ea94c77f/98498aa8cbba4029b22d8bec6e06f660 [2021-12-17 04:44:21,906 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-17 04:44:21,907 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-17 04:44:21,909 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-17 04:44:21,909 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-17 04:44:21,921 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-17 04:44:21,922 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 04:44:21" (1/1) ... [2021-12-17 04:44:21,922 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@226f31f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:44:21, skipping insertion in model container [2021-12-17 04:44:21,923 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 04:44:21" (1/1) ... [2021-12-17 04:44:21,927 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-17 04:44:21,973 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-17 04:44:22,097 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_label24.c[4340,4353] [2021-12-17 04:44:22,217 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 04:44:22,223 INFO L203 MainTranslator]: Completed pre-run [2021-12-17 04:44:22,237 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_label24.c[4340,4353] [2021-12-17 04:44:22,329 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 04:44:22,339 INFO L208 MainTranslator]: Completed translation [2021-12-17 04:44:22,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:44:22 WrapperNode [2021-12-17 04:44:22,340 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-17 04:44:22,341 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-17 04:44:22,341 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-17 04:44:22,341 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-17 04:44:22,346 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:44:22" (1/1) ... [2021-12-17 04:44:22,366 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:44:22" (1/1) ... [2021-12-17 04:44:22,424 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 858 [2021-12-17 04:44:22,425 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-17 04:44:22,426 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-17 04:44:22,426 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-17 04:44:22,426 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-17 04:44:22,432 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:44:22" (1/1) ... [2021-12-17 04:44:22,432 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:44:22" (1/1) ... [2021-12-17 04:44:22,440 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:44:22" (1/1) ... [2021-12-17 04:44:22,441 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:44:22" (1/1) ... [2021-12-17 04:44:22,464 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:44:22" (1/1) ... [2021-12-17 04:44:22,481 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:44:22" (1/1) ... [2021-12-17 04:44:22,487 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:44:22" (1/1) ... [2021-12-17 04:44:22,496 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-17 04:44:22,501 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-17 04:44:22,501 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-17 04:44:22,501 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-17 04:44:22,502 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:44:22" (1/1) ... [2021-12-17 04:44:22,507 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 04:44:22,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 04:44:22,535 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-17 04:44:22,554 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-17 04:44:22,566 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-17 04:44:22,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-17 04:44:22,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-17 04:44:22,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-17 04:44:22,628 INFO L236 CfgBuilder]: Building ICFG [2021-12-17 04:44:22,629 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-17 04:44:23,284 INFO L277 CfgBuilder]: Performing block encoding [2021-12-17 04:44:23,293 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-17 04:44:23,293 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-17 04:44:23,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 04:44:23 BoogieIcfgContainer [2021-12-17 04:44:23,295 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-17 04:44:23,297 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-17 04:44:23,297 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-17 04:44:23,300 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-17 04:44:23,300 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 04:44:21" (1/3) ... [2021-12-17 04:44:23,300 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c4c9379 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 04:44:23, skipping insertion in model container [2021-12-17 04:44:23,301 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:44:22" (2/3) ... [2021-12-17 04:44:23,301 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c4c9379 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 04:44:23, skipping insertion in model container [2021-12-17 04:44:23,301 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 04:44:23" (3/3) ... [2021-12-17 04:44:23,302 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label24.c [2021-12-17 04:44:23,306 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-17 04:44:23,306 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-17 04:44:23,344 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-17 04:44:23,349 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-17 04:44:23,349 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-17 04:44:23,363 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) [2021-12-17 04:44:23,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-12-17 04:44:23,371 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:44:23,372 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 04:44:23,372 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:44:23,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:44:23,379 INFO L85 PathProgramCache]: Analyzing trace with hash 751578873, now seen corresponding path program 1 times [2021-12-17 04:44:23,384 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:44:23,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287015000] [2021-12-17 04:44:23,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:44:23,388 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:44:23,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:44:23,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 04:44:23,618 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:44:23,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287015000] [2021-12-17 04:44:23,619 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287015000] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:44:23,619 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 04:44:23,619 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 04:44:23,620 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210698322] [2021-12-17 04:44:23,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:44:23,624 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 04:44:23,624 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:44:23,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 04:44:23,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-17 04:44:23,651 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 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:44:24,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:44:24,881 INFO L93 Difference]: Finished difference Result 850 states and 1558 transitions. [2021-12-17 04:44:24,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 04:44:24,883 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 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 41 [2021-12-17 04:44:24,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:44:24,895 INFO L225 Difference]: With dead ends: 850 [2021-12-17 04:44:24,895 INFO L226 Difference]: Without dead ends: 538 [2021-12-17 04:44:24,899 INFO L932 BasicCegarLoop]: 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 [2021-12-17 04:44:24,901 INFO L933 BasicCegarLoop]: 174 mSDtfsCounter, 506 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 1337 mSolverCounterSat, 267 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 506 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 1604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 267 IncrementalHoareTripleChecker+Valid, 1337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-17 04:44:24,901 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [506 Valid, 194 Invalid, 1604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [267 Valid, 1337 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-17 04:44:24,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2021-12-17 04:44:24,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2021-12-17 04:44:24,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 537 states have (on average 1.4487895716945995) internal successors, (778), 537 states have internal predecessors, (778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:44:24,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 778 transitions. [2021-12-17 04:44:24,951 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 778 transitions. Word has length 41 [2021-12-17 04:44:24,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:44:24,952 INFO L470 AbstractCegarLoop]: Abstraction has 538 states and 778 transitions. [2021-12-17 04:44:24,952 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:44:24,952 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 778 transitions. [2021-12-17 04:44:24,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-12-17 04:44:24,955 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:44:24,955 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 04:44:24,956 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-17 04:44:24,956 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:44:24,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:44:24,956 INFO L85 PathProgramCache]: Analyzing trace with hash 92265580, now seen corresponding path program 1 times [2021-12-17 04:44:24,957 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:44:24,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909399680] [2021-12-17 04:44:24,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:44:24,957 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:44:24,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:44:25,112 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 04:44:25,112 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:44:25,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909399680] [2021-12-17 04:44:25,113 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909399680] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:44:25,113 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 04:44:25,113 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 04:44:25,113 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040161902] [2021-12-17 04:44:25,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:44:25,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 04:44:25,114 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:44:25,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 04:44:25,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-17 04:44:25,115 INFO L87 Difference]: Start difference. First operand 538 states and 778 transitions. Second operand has 4 states, 4 states have (on average 30.25) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:44:25,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:44:25,743 INFO L93 Difference]: Finished difference Result 1281 states and 1978 transitions. [2021-12-17 04:44:25,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 04:44:25,744 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2021-12-17 04:44:25,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:44:25,747 INFO L225 Difference]: With dead ends: 1281 [2021-12-17 04:44:25,747 INFO L226 Difference]: Without dead ends: 894 [2021-12-17 04:44:25,748 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-17 04:44:25,749 INFO L933 BasicCegarLoop]: 111 mSDtfsCounter, 118 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 661 mSolverCounterSat, 189 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 850 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 189 IncrementalHoareTripleChecker+Valid, 661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-17 04:44:25,750 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 119 Invalid, 850 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [189 Valid, 661 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-17 04:44:25,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2021-12-17 04:44:25,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 716. [2021-12-17 04:44:25,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 715 states have (on average 1.220979020979021) internal successors, (873), 715 states have internal predecessors, (873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:44:25,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 873 transitions. [2021-12-17 04:44:25,777 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 873 transitions. Word has length 121 [2021-12-17 04:44:25,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:44:25,777 INFO L470 AbstractCegarLoop]: Abstraction has 716 states and 873 transitions. [2021-12-17 04:44:25,777 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:44:25,778 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 873 transitions. [2021-12-17 04:44:25,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2021-12-17 04:44:25,796 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:44:25,797 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 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] [2021-12-17 04:44:25,797 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-17 04:44:25,797 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:44:25,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:44:25,797 INFO L85 PathProgramCache]: Analyzing trace with hash -538338920, now seen corresponding path program 1 times [2021-12-17 04:44:25,798 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:44:25,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376852096] [2021-12-17 04:44:25,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:44:25,798 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:44:25,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:44:25,991 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 77 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 04:44:25,991 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:44:25,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376852096] [2021-12-17 04:44:25,991 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376852096] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 04:44:25,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1570928439] [2021-12-17 04:44:25,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:44:25,992 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 04:44:25,992 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 04:44:25,993 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-17 04:44:25,994 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-17 04:44:26,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:44:26,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-17 04:44:26,067 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 04:44:26,388 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2021-12-17 04:44:26,389 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 04:44:26,389 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1570928439] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:44:26,389 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 04:44:26,389 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2021-12-17 04:44:26,390 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780638706] [2021-12-17 04:44:26,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:44:26,394 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 04:44:26,394 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:44:26,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 04:44:26,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-12-17 04:44:26,395 INFO L87 Difference]: Start difference. First operand 716 states and 873 transitions. Second operand has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:44:26,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:44:26,825 INFO L93 Difference]: Finished difference Result 1608 states and 2071 transitions. [2021-12-17 04:44:26,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 04:44:26,826 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 212 [2021-12-17 04:44:26,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:44:26,829 INFO L225 Difference]: With dead ends: 1608 [2021-12-17 04:44:26,829 INFO L226 Difference]: Without dead ends: 1072 [2021-12-17 04:44:26,830 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-12-17 04:44:26,831 INFO L933 BasicCegarLoop]: 81 mSDtfsCounter, 142 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 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 [2021-12-17 04:44:26,831 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 85 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 439 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-17 04:44:26,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2021-12-17 04:44:26,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 894. [2021-12-17 04:44:26,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 894 states, 893 states have (on average 1.211646136618141) internal successors, (1082), 893 states have internal predecessors, (1082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:44:26,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1082 transitions. [2021-12-17 04:44:26,847 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1082 transitions. Word has length 212 [2021-12-17 04:44:26,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:44:26,847 INFO L470 AbstractCegarLoop]: Abstraction has 894 states and 1082 transitions. [2021-12-17 04:44:26,848 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:44:26,848 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1082 transitions. [2021-12-17 04:44:26,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2021-12-17 04:44:26,850 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:44:26,851 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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] [2021-12-17 04:44:26,870 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-17 04:44:27,067 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 04:44:27,067 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:44:27,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:44:27,068 INFO L85 PathProgramCache]: Analyzing trace with hash 350300863, now seen corresponding path program 1 times [2021-12-17 04:44:27,068 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:44:27,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925124689] [2021-12-17 04:44:27,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:44:27,068 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:44:27,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:44:27,128 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 145 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 04:44:27,129 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:44:27,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925124689] [2021-12-17 04:44:27,129 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925124689] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:44:27,129 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 04:44:27,129 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 04:44:27,129 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370898306] [2021-12-17 04:44:27,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:44:27,130 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 04:44:27,130 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:44:27,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 04:44:27,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 04:44:27,130 INFO L87 Difference]: Start difference. First operand 894 states and 1082 transitions. Second operand has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:44:27,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:44:27,535 INFO L93 Difference]: Finished difference Result 1964 states and 2415 transitions. [2021-12-17 04:44:27,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 04:44:27,536 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 0 states have call successors, (0), 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 215 [2021-12-17 04:44:27,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:44:27,539 INFO L225 Difference]: With dead ends: 1964 [2021-12-17 04:44:27,539 INFO L226 Difference]: Without dead ends: 1250 [2021-12-17 04:44:27,540 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 04:44:27,541 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 111 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-17 04:44:27,541 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 58 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 450 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-17 04:44:27,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2021-12-17 04:44:27,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 1250. [2021-12-17 04:44:27,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1250 states, 1249 states have (on average 1.1753402722177742) internal successors, (1468), 1249 states have internal predecessors, (1468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:44:27,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 1468 transitions. [2021-12-17 04:44:27,558 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 1468 transitions. Word has length 215 [2021-12-17 04:44:27,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:44:27,558 INFO L470 AbstractCegarLoop]: Abstraction has 1250 states and 1468 transitions. [2021-12-17 04:44:27,559 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:44:27,559 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 1468 transitions. [2021-12-17 04:44:27,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 376 [2021-12-17 04:44:27,562 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:44:27,562 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 04:44:27,563 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-17 04:44:27,563 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:44:27,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:44:27,563 INFO L85 PathProgramCache]: Analyzing trace with hash -952795878, now seen corresponding path program 1 times [2021-12-17 04:44:27,564 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:44:27,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22301783] [2021-12-17 04:44:27,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:44:27,564 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:44:27,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:44:27,676 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 195 proven. 130 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-12-17 04:44:27,676 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:44:27,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22301783] [2021-12-17 04:44:27,677 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22301783] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 04:44:27,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1401606307] [2021-12-17 04:44:27,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:44:27,677 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 04:44:27,677 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 04:44:27,678 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-17 04:44:27,679 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-17 04:44:27,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:44:27,782 INFO L263 TraceCheckSpWp]: Trace formula consists of 503 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-17 04:44:27,787 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 04:44:28,316 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 116 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-12-17 04:44:28,317 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 04:44:28,317 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1401606307] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:44:28,317 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 04:44:28,317 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-12-17 04:44:28,317 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121260219] [2021-12-17 04:44:28,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:44:28,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 04:44:28,318 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:44:28,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 04:44:28,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-12-17 04:44:28,318 INFO L87 Difference]: Start difference. First operand 1250 states and 1468 transitions. Second operand has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 2 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:44:28,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:44:28,703 INFO L93 Difference]: Finished difference Result 2854 states and 3498 transitions. [2021-12-17 04:44:28,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 04:44:28,706 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 2 states have internal predecessors, (167), 0 states have call successors, (0), 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 375 [2021-12-17 04:44:28,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:44:28,711 INFO L225 Difference]: With dead ends: 2854 [2021-12-17 04:44:28,712 INFO L226 Difference]: Without dead ends: 1962 [2021-12-17 04:44:28,713 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 378 GetRequests, 374 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-12-17 04:44:28,713 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 65 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-17 04:44:28,714 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 47 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-17 04:44:28,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1962 states. [2021-12-17 04:44:28,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1962 to 1962. [2021-12-17 04:44:28,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1962 states, 1961 states have (on average 1.1662417134115248) internal successors, (2287), 1961 states have internal predecessors, (2287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:44:28,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1962 states to 1962 states and 2287 transitions. [2021-12-17 04:44:28,761 INFO L78 Accepts]: Start accepts. Automaton has 1962 states and 2287 transitions. Word has length 375 [2021-12-17 04:44:28,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:44:28,762 INFO L470 AbstractCegarLoop]: Abstraction has 1962 states and 2287 transitions. [2021-12-17 04:44:28,762 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 2 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:44:28,762 INFO L276 IsEmpty]: Start isEmpty. Operand 1962 states and 2287 transitions. [2021-12-17 04:44:28,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 422 [2021-12-17 04:44:28,766 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:44:28,767 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 04:44:28,823 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-17 04:44:28,983 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 04:44:28,984 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:44:28,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:44:28,984 INFO L85 PathProgramCache]: Analyzing trace with hash 818186285, now seen corresponding path program 1 times [2021-12-17 04:44:28,984 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:44:28,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673874509] [2021-12-17 04:44:28,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:44:28,985 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:44:29,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:44:29,108 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 0 proven. 152 refuted. 0 times theorem prover too weak. 278 trivial. 0 not checked. [2021-12-17 04:44:29,108 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:44:29,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673874509] [2021-12-17 04:44:29,109 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673874509] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 04:44:29,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1570179603] [2021-12-17 04:44:29,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:44:29,109 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 04:44:29,109 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 04:44:29,110 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-17 04:44:29,111 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-17 04:44:29,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:44:29,205 INFO L263 TraceCheckSpWp]: Trace formula consists of 549 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-17 04:44:29,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 04:44:29,765 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 430 trivial. 0 not checked. [2021-12-17 04:44:29,765 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 04:44:29,766 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1570179603] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:44:29,766 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 04:44:29,766 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2021-12-17 04:44:29,766 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851969065] [2021-12-17 04:44:29,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:44:29,766 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 04:44:29,766 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:44:29,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 04:44:29,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-17 04:44:29,767 INFO L87 Difference]: Start difference. First operand 1962 states and 2287 transitions. Second operand has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 2 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:44:30,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:44:30,094 INFO L93 Difference]: Finished difference Result 2854 states and 3290 transitions. [2021-12-17 04:44:30,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 04:44:30,095 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 2 states have internal predecessors, (175), 0 states have call successors, (0), 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 421 [2021-12-17 04:44:30,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:44:30,102 INFO L225 Difference]: With dead ends: 2854 [2021-12-17 04:44:30,102 INFO L226 Difference]: Without dead ends: 2852 [2021-12-17 04:44:30,103 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 423 GetRequests, 420 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-17 04:44:30,103 INFO L933 BasicCegarLoop]: 24 mSDtfsCounter, 27 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-17 04:44:30,103 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 28 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 491 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-17 04:44:30,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2852 states. [2021-12-17 04:44:30,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2852 to 1784. [2021-12-17 04:44:30,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1784 states, 1783 states have (on average 1.1402131239484015) internal successors, (2033), 1783 states have internal predecessors, (2033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:44:30,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1784 states to 1784 states and 2033 transitions. [2021-12-17 04:44:30,131 INFO L78 Accepts]: Start accepts. Automaton has 1784 states and 2033 transitions. Word has length 421 [2021-12-17 04:44:30,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:44:30,131 INFO L470 AbstractCegarLoop]: Abstraction has 1784 states and 2033 transitions. [2021-12-17 04:44:30,131 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 2 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:44:30,132 INFO L276 IsEmpty]: Start isEmpty. Operand 1784 states and 2033 transitions. [2021-12-17 04:44:30,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 424 [2021-12-17 04:44:30,135 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:44:30,135 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 04:44:30,157 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-17 04:44:30,352 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 04:44:30,352 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:44:30,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:44:30,353 INFO L85 PathProgramCache]: Analyzing trace with hash 1460043639, now seen corresponding path program 1 times [2021-12-17 04:44:30,353 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:44:30,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350286298] [2021-12-17 04:44:30,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:44:30,353 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:44:30,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:44:30,499 INFO L134 CoverageAnalysis]: Checked inductivity of 679 backedges. 406 proven. 0 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2021-12-17 04:44:30,499 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:44:30,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350286298] [2021-12-17 04:44:30,499 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350286298] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:44:30,499 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 04:44:30,499 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 04:44:30,499 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899596972] [2021-12-17 04:44:30,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:44:30,500 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 04:44:30,500 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:44:30,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 04:44:30,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-17 04:44:30,501 INFO L87 Difference]: Start difference. First operand 1784 states and 2033 transitions. Second operand has 4 states, 4 states have (on average 58.0) internal successors, (232), 3 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:44:30,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:44:30,924 INFO L93 Difference]: Finished difference Result 3417 states and 3936 transitions. [2021-12-17 04:44:30,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 04:44:30,925 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 58.0) internal successors, (232), 3 states have internal predecessors, (232), 0 states have call successors, (0), 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 423 [2021-12-17 04:44:30,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:44:30,929 INFO L225 Difference]: With dead ends: 3417 [2021-12-17 04:44:30,930 INFO L226 Difference]: Without dead ends: 1962 [2021-12-17 04:44:30,931 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-17 04:44:30,931 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 125 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 686 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-17 04:44:30,932 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 17 Invalid, 731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 686 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-17 04:44:30,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1962 states. [2021-12-17 04:44:30,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1962 to 1784. [2021-12-17 04:44:30,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1784 states, 1783 states have (on average 1.089736399326977) internal successors, (1943), 1783 states have internal predecessors, (1943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:44:30,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1784 states to 1784 states and 1943 transitions. [2021-12-17 04:44:30,953 INFO L78 Accepts]: Start accepts. Automaton has 1784 states and 1943 transitions. Word has length 423 [2021-12-17 04:44:30,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:44:30,954 INFO L470 AbstractCegarLoop]: Abstraction has 1784 states and 1943 transitions. [2021-12-17 04:44:30,954 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.0) internal successors, (232), 3 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:44:30,954 INFO L276 IsEmpty]: Start isEmpty. Operand 1784 states and 1943 transitions. [2021-12-17 04:44:30,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 435 [2021-12-17 04:44:30,959 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:44:30,959 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 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] [2021-12-17 04:44:30,959 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-17 04:44:30,960 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:44:30,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:44:30,961 INFO L85 PathProgramCache]: Analyzing trace with hash -1911071162, now seen corresponding path program 1 times [2021-12-17 04:44:30,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:44:30,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411165040] [2021-12-17 04:44:30,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:44:30,964 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:44:31,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:44:31,086 INFO L134 CoverageAnalysis]: Checked inductivity of 675 backedges. 361 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-12-17 04:44:31,087 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:44:31,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411165040] [2021-12-17 04:44:31,087 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411165040] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:44:31,087 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 04:44:31,087 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 04:44:31,087 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482156934] [2021-12-17 04:44:31,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:44:31,088 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 04:44:31,088 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:44:31,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 04:44:31,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 04:44:31,088 INFO L87 Difference]: Start difference. First operand 1784 states and 1943 transitions. Second operand has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:44:31,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:44:31,447 INFO L93 Difference]: Finished difference Result 3922 states and 4347 transitions. [2021-12-17 04:44:31,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 04:44:31,448 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 0 states have call successors, (0), 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 434 [2021-12-17 04:44:31,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:44:31,453 INFO L225 Difference]: With dead ends: 3922 [2021-12-17 04:44:31,454 INFO L226 Difference]: Without dead ends: 2496 [2021-12-17 04:44:31,455 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 04:44:31,455 INFO L933 BasicCegarLoop]: 238 mSDtfsCounter, 112 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-17 04:44:31,456 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 242 Invalid, 470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-17 04:44:31,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2496 states. [2021-12-17 04:44:31,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2496 to 2496. [2021-12-17 04:44:31,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2496 states, 2495 states have (on average 1.072945891783567) internal successors, (2677), 2495 states have internal predecessors, (2677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:44:31,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2496 states to 2496 states and 2677 transitions. [2021-12-17 04:44:31,485 INFO L78 Accepts]: Start accepts. Automaton has 2496 states and 2677 transitions. Word has length 434 [2021-12-17 04:44:31,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:44:31,485 INFO L470 AbstractCegarLoop]: Abstraction has 2496 states and 2677 transitions. [2021-12-17 04:44:31,485 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:44:31,485 INFO L276 IsEmpty]: Start isEmpty. Operand 2496 states and 2677 transitions. [2021-12-17 04:44:31,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 590 [2021-12-17 04:44:31,488 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:44:31,489 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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] [2021-12-17 04:44:31,489 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-17 04:44:31,489 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:44:31,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:44:31,490 INFO L85 PathProgramCache]: Analyzing trace with hash -1333921814, now seen corresponding path program 1 times [2021-12-17 04:44:31,490 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:44:31,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006147046] [2021-12-17 04:44:31,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:44:31,490 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:44:31,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:44:31,624 INFO L134 CoverageAnalysis]: Checked inductivity of 1106 backedges. 469 proven. 0 refuted. 0 times theorem prover too weak. 637 trivial. 0 not checked. [2021-12-17 04:44:31,625 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:44:31,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006147046] [2021-12-17 04:44:31,625 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006147046] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:44:31,625 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 04:44:31,625 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 04:44:31,625 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194766538] [2021-12-17 04:44:31,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:44:31,626 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 04:44:31,626 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:44:31,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 04:44:31,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 04:44:31,627 INFO L87 Difference]: Start difference. First operand 2496 states and 2677 transitions. Second operand has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:44:31,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:44:31,994 INFO L93 Difference]: Finished difference Result 5168 states and 5620 transitions. [2021-12-17 04:44:31,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 04:44:31,995 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 0 states have call successors, (0), 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 589 [2021-12-17 04:44:31,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:44:32,002 INFO L225 Difference]: With dead ends: 5168 [2021-12-17 04:44:32,002 INFO L226 Difference]: Without dead ends: 3030 [2021-12-17 04:44:32,005 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 04:44:32,005 INFO L933 BasicCegarLoop]: 236 mSDtfsCounter, 110 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-17 04:44:32,005 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 241 Invalid, 479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 435 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-17 04:44:32,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3030 states. [2021-12-17 04:44:32,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3030 to 3030. [2021-12-17 04:44:32,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3030 states, 3029 states have (on average 1.0706503796632552) internal successors, (3243), 3029 states have internal predecessors, (3243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:44:32,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3030 states to 3030 states and 3243 transitions. [2021-12-17 04:44:32,041 INFO L78 Accepts]: Start accepts. Automaton has 3030 states and 3243 transitions. Word has length 589 [2021-12-17 04:44:32,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:44:32,042 INFO L470 AbstractCegarLoop]: Abstraction has 3030 states and 3243 transitions. [2021-12-17 04:44:32,042 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:44:32,042 INFO L276 IsEmpty]: Start isEmpty. Operand 3030 states and 3243 transitions. [2021-12-17 04:44:32,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 608 [2021-12-17 04:44:32,045 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:44:32,046 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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] [2021-12-17 04:44:32,046 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-17 04:44:32,046 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:44:32,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:44:32,047 INFO L85 PathProgramCache]: Analyzing trace with hash 1035139389, now seen corresponding path program 1 times [2021-12-17 04:44:32,047 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:44:32,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071014050] [2021-12-17 04:44:32,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:44:32,047 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:44:32,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:44:32,228 INFO L134 CoverageAnalysis]: Checked inductivity of 1106 backedges. 660 proven. 93 refuted. 0 times theorem prover too weak. 353 trivial. 0 not checked. [2021-12-17 04:44:32,228 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:44:32,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071014050] [2021-12-17 04:44:32,228 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071014050] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 04:44:32,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1692108581] [2021-12-17 04:44:32,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:44:32,229 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 04:44:32,229 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 04:44:32,244 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-17 04:44:32,287 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-17 04:44:32,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:44:32,379 INFO L263 TraceCheckSpWp]: Trace formula consists of 777 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-17 04:44:32,383 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 04:44:33,061 INFO L134 CoverageAnalysis]: Checked inductivity of 1106 backedges. 194 proven. 0 refuted. 0 times theorem prover too weak. 912 trivial. 0 not checked. [2021-12-17 04:44:33,062 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 04:44:33,062 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1692108581] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:44:33,062 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 04:44:33,062 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-12-17 04:44:33,062 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74531892] [2021-12-17 04:44:33,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:44:33,062 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 04:44:33,063 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:44:33,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 04:44:33,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-17 04:44:33,063 INFO L87 Difference]: Start difference. First operand 3030 states and 3243 transitions. Second operand has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:44:33,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:44:33,417 INFO L93 Difference]: Finished difference Result 6948 states and 7451 transitions. [2021-12-17 04:44:33,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 04:44:33,418 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 607 [2021-12-17 04:44:33,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:44:33,428 INFO L225 Difference]: With dead ends: 6948 [2021-12-17 04:44:33,429 INFO L226 Difference]: Without dead ends: 3564 [2021-12-17 04:44:33,432 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 610 GetRequests, 606 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-17 04:44:33,433 INFO L933 BasicCegarLoop]: 242 mSDtfsCounter, 140 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-17 04:44:33,434 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 247 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-17 04:44:33,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3564 states. [2021-12-17 04:44:33,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3564 to 3208. [2021-12-17 04:44:33,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3208 states, 3207 states have (on average 1.0642344870595573) internal successors, (3413), 3207 states have internal predecessors, (3413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:44:33,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3208 states to 3208 states and 3413 transitions. [2021-12-17 04:44:33,470 INFO L78 Accepts]: Start accepts. Automaton has 3208 states and 3413 transitions. Word has length 607 [2021-12-17 04:44:33,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:44:33,471 INFO L470 AbstractCegarLoop]: Abstraction has 3208 states and 3413 transitions. [2021-12-17 04:44:33,471 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:44:33,471 INFO L276 IsEmpty]: Start isEmpty. Operand 3208 states and 3413 transitions. [2021-12-17 04:44:33,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 630 [2021-12-17 04:44:33,474 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:44:33,474 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 04:44:33,492 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-17 04:44:33,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 04:44:33,688 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:44:33,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:44:33,688 INFO L85 PathProgramCache]: Analyzing trace with hash -994267116, now seen corresponding path program 1 times [2021-12-17 04:44:33,688 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:44:33,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132738939] [2021-12-17 04:44:33,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:44:33,688 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:44:33,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:44:33,895 INFO L134 CoverageAnalysis]: Checked inductivity of 1194 backedges. 748 proven. 93 refuted. 0 times theorem prover too weak. 353 trivial. 0 not checked. [2021-12-17 04:44:33,895 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:44:33,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132738939] [2021-12-17 04:44:33,895 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132738939] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 04:44:33,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1818053022] [2021-12-17 04:44:33,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:44:33,896 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 04:44:33,896 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 04:44:33,897 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-17 04:44:33,923 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-17 04:44:34,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:44:34,042 INFO L263 TraceCheckSpWp]: Trace formula consists of 799 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-17 04:44:34,053 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 04:44:34,692 INFO L134 CoverageAnalysis]: Checked inductivity of 1194 backedges. 194 proven. 0 refuted. 0 times theorem prover too weak. 1000 trivial. 0 not checked. [2021-12-17 04:44:34,692 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 04:44:34,692 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1818053022] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:44:34,692 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 04:44:34,692 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-12-17 04:44:34,692 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679081366] [2021-12-17 04:44:34,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:44:34,693 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 04:44:34,693 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:44:34,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 04:44:34,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-12-17 04:44:34,694 INFO L87 Difference]: Start difference. First operand 3208 states and 3413 transitions. Second operand has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:44:35,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:44:35,015 INFO L93 Difference]: Finished difference Result 4100 states and 4374 transitions. [2021-12-17 04:44:35,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 04:44:35,016 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 629 [2021-12-17 04:44:35,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:44:35,024 INFO L225 Difference]: With dead ends: 4100 [2021-12-17 04:44:35,024 INFO L226 Difference]: Without dead ends: 4098 [2021-12-17 04:44:35,025 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 632 GetRequests, 628 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-12-17 04:44:35,025 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 161 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-17 04:44:35,025 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 11 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-17 04:44:35,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4098 states. [2021-12-17 04:44:35,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4098 to 3030. [2021-12-17 04:44:35,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3030 states, 3029 states have (on average 1.066358534169693) internal successors, (3230), 3029 states have internal predecessors, (3230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:44:35,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3030 states to 3030 states and 3230 transitions. [2021-12-17 04:44:35,059 INFO L78 Accepts]: Start accepts. Automaton has 3030 states and 3230 transitions. Word has length 629 [2021-12-17 04:44:35,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:44:35,059 INFO L470 AbstractCegarLoop]: Abstraction has 3030 states and 3230 transitions. [2021-12-17 04:44:35,059 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:44:35,060 INFO L276 IsEmpty]: Start isEmpty. Operand 3030 states and 3230 transitions. [2021-12-17 04:44:35,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 717 [2021-12-17 04:44:35,064 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:44:35,064 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 04:44:35,084 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-17 04:44:35,277 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-12-17 04:44:35,278 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:44:35,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:44:35,278 INFO L85 PathProgramCache]: Analyzing trace with hash -901514019, now seen corresponding path program 1 times [2021-12-17 04:44:35,278 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:44:35,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752180308] [2021-12-17 04:44:35,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:44:35,278 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:44:35,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:44:35,475 INFO L134 CoverageAnalysis]: Checked inductivity of 1645 backedges. 1090 proven. 93 refuted. 0 times theorem prover too weak. 462 trivial. 0 not checked. [2021-12-17 04:44:35,475 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:44:35,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752180308] [2021-12-17 04:44:35,475 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752180308] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 04:44:35,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1599284300] [2021-12-17 04:44:35,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:44:35,476 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 04:44:35,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 04:44:35,477 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) [2021-12-17 04:44:35,478 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-17 04:44:35,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:44:35,619 INFO L263 TraceCheckSpWp]: Trace formula consists of 910 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-17 04:44:35,625 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 04:44:39,291 INFO L134 CoverageAnalysis]: Checked inductivity of 1645 backedges. 1184 proven. 108 refuted. 0 times theorem prover too weak. 353 trivial. 0 not checked. [2021-12-17 04:44:39,291 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-17 04:44:45,745 INFO L134 CoverageAnalysis]: Checked inductivity of 1645 backedges. 651 proven. 323 refuted. 0 times theorem prover too weak. 671 trivial. 0 not checked. [2021-12-17 04:44:45,746 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1599284300] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-17 04:44:45,746 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-17 04:44:45,746 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 4] total 11 [2021-12-17 04:44:45,746 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389888560] [2021-12-17 04:44:45,747 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-17 04:44:45,748 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 04:44:45,748 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:44:45,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 04:44:45,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2021-12-17 04:44:45,749 INFO L87 Difference]: Start difference. First operand 3030 states and 3230 transitions. Second operand has 12 states, 12 states have (on average 90.83333333333333) internal successors, (1090), 11 states have internal predecessors, (1090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:44:47,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:44:47,878 INFO L93 Difference]: Finished difference Result 7180 states and 7655 transitions. [2021-12-17 04:44:47,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-12-17 04:44:47,879 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 90.83333333333333) internal successors, (1090), 11 states have internal predecessors, (1090), 0 states have call successors, (0), 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 716 [2021-12-17 04:44:47,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:44:47,888 INFO L225 Difference]: With dead ends: 7180 [2021-12-17 04:44:47,888 INFO L226 Difference]: Without dead ends: 4327 [2021-12-17 04:44:47,890 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1444 GetRequests, 1424 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=173, Invalid=289, Unknown=0, NotChecked=0, Total=462 [2021-12-17 04:44:47,890 INFO L933 BasicCegarLoop]: 17 mSDtfsCounter, 1253 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 3167 mSolverCounterSat, 194 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1253 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 3361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 194 IncrementalHoareTripleChecker+Valid, 3167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-12-17 04:44:47,891 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1253 Valid, 74 Invalid, 3361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [194 Valid, 3167 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-12-17 04:44:47,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4327 states. [2021-12-17 04:44:47,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4327 to 3208. [2021-12-17 04:44:47,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3208 states, 3207 states have (on average 1.043654505768631) internal successors, (3347), 3207 states have internal predecessors, (3347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:44:47,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3208 states to 3208 states and 3347 transitions. [2021-12-17 04:44:47,925 INFO L78 Accepts]: Start accepts. Automaton has 3208 states and 3347 transitions. Word has length 716 [2021-12-17 04:44:47,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:44:47,926 INFO L470 AbstractCegarLoop]: Abstraction has 3208 states and 3347 transitions. [2021-12-17 04:44:47,926 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 90.83333333333333) internal successors, (1090), 11 states have internal predecessors, (1090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:44:47,926 INFO L276 IsEmpty]: Start isEmpty. Operand 3208 states and 3347 transitions. [2021-12-17 04:44:47,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 841 [2021-12-17 04:44:47,932 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:44:47,932 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 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, 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, 1] [2021-12-17 04:44:47,950 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-12-17 04:44:48,143 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 04:44:48,144 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:44:48,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:44:48,144 INFO L85 PathProgramCache]: Analyzing trace with hash -27094563, now seen corresponding path program 1 times [2021-12-17 04:44:48,144 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:44:48,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891094862] [2021-12-17 04:44:48,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:44:48,144 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:44:48,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:44:48,350 INFO L134 CoverageAnalysis]: Checked inductivity of 2180 backedges. 1563 proven. 155 refuted. 0 times theorem prover too weak. 462 trivial. 0 not checked. [2021-12-17 04:44:48,350 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:44:48,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891094862] [2021-12-17 04:44:48,350 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891094862] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 04:44:48,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1300666777] [2021-12-17 04:44:48,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:44:48,351 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 04:44:48,351 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 04:44:48,352 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) [2021-12-17 04:44:48,353 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-17 04:44:48,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:44:48,515 INFO L263 TraceCheckSpWp]: Trace formula consists of 1061 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-17 04:44:48,523 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 04:44:49,481 INFO L134 CoverageAnalysis]: Checked inductivity of 2180 backedges. 691 proven. 0 refuted. 0 times theorem prover too weak. 1489 trivial. 0 not checked. [2021-12-17 04:44:49,481 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 04:44:49,481 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1300666777] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:44:49,481 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 04:44:49,481 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-12-17 04:44:49,482 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316035715] [2021-12-17 04:44:49,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:44:49,482 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 04:44:49,482 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:44:49,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 04:44:49,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-17 04:44:49,483 INFO L87 Difference]: Start difference. First operand 3208 states and 3347 transitions. Second operand has 3 states, 3 states have (on average 97.33333333333333) internal successors, (292), 3 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:44:49,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:44:49,790 INFO L93 Difference]: Finished difference Result 6414 states and 6733 transitions. [2021-12-17 04:44:49,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 04:44:49,791 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 97.33333333333333) internal successors, (292), 3 states have internal predecessors, (292), 0 states have call successors, (0), 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 840 [2021-12-17 04:44:49,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:44:49,798 INFO L225 Difference]: With dead ends: 6414 [2021-12-17 04:44:49,798 INFO L226 Difference]: Without dead ends: 3564 [2021-12-17 04:44:49,800 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 843 GetRequests, 840 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-17 04:44:49,801 INFO L933 BasicCegarLoop]: 217 mSDtfsCounter, 111 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-17 04:44:49,801 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 222 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 397 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-17 04:44:49,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3564 states. [2021-12-17 04:44:49,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3564 to 3564. [2021-12-17 04:44:49,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3564 states, 3563 states have (on average 1.043222003929273) internal successors, (3717), 3563 states have internal predecessors, (3717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:44:49,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3564 states to 3564 states and 3717 transitions. [2021-12-17 04:44:49,843 INFO L78 Accepts]: Start accepts. Automaton has 3564 states and 3717 transitions. Word has length 840 [2021-12-17 04:44:49,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:44:49,844 INFO L470 AbstractCegarLoop]: Abstraction has 3564 states and 3717 transitions. [2021-12-17 04:44:49,844 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 97.33333333333333) internal successors, (292), 3 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:44:49,845 INFO L276 IsEmpty]: Start isEmpty. Operand 3564 states and 3717 transitions. [2021-12-17 04:44:49,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 889 [2021-12-17 04:44:49,859 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:44:49,860 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 5, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 04:44:49,890 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-12-17 04:44:50,077 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 04:44:50,078 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:44:50,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:44:50,079 INFO L85 PathProgramCache]: Analyzing trace with hash 1696783189, now seen corresponding path program 1 times [2021-12-17 04:44:50,079 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:44:50,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73296644] [2021-12-17 04:44:50,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:44:50,079 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:44:50,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:44:50,255 INFO L134 CoverageAnalysis]: Checked inductivity of 2375 backedges. 1758 proven. 155 refuted. 0 times theorem prover too weak. 462 trivial. 0 not checked. [2021-12-17 04:44:50,255 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:44:50,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73296644] [2021-12-17 04:44:50,255 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73296644] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 04:44:50,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [57574992] [2021-12-17 04:44:50,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:44:50,255 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 04:44:50,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 04:44:50,256 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) [2021-12-17 04:44:50,258 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-12-17 04:44:50,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:44:50,417 INFO L263 TraceCheckSpWp]: Trace formula consists of 1112 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-17 04:44:50,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 04:44:51,392 INFO L134 CoverageAnalysis]: Checked inductivity of 2375 backedges. 1758 proven. 155 refuted. 0 times theorem prover too weak. 462 trivial. 0 not checked. [2021-12-17 04:44:51,393 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-17 04:44:52,294 INFO L134 CoverageAnalysis]: Checked inductivity of 2375 backedges. 1758 proven. 155 refuted. 0 times theorem prover too weak. 462 trivial. 0 not checked. [2021-12-17 04:44:52,295 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [57574992] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-17 04:44:52,295 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-17 04:44:52,295 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2021-12-17 04:44:52,295 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277155655] [2021-12-17 04:44:52,295 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-17 04:44:52,296 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-17 04:44:52,296 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:44:52,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-17 04:44:52,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-12-17 04:44:52,297 INFO L87 Difference]: Start difference. First operand 3564 states and 3717 transitions. Second operand has 6 states, 6 states have (on average 150.66666666666666) internal successors, (904), 6 states have internal predecessors, (904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:44:52,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:44:52,876 INFO L93 Difference]: Finished difference Result 7838 states and 8198 transitions. [2021-12-17 04:44:52,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-17 04:44:52,877 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 150.66666666666666) internal successors, (904), 6 states have internal predecessors, (904), 0 states have call successors, (0), 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 888 [2021-12-17 04:44:52,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:44:52,885 INFO L225 Difference]: With dead ends: 7838 [2021-12-17 04:44:52,885 INFO L226 Difference]: Without dead ends: 4632 [2021-12-17 04:44:52,888 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1778 GetRequests, 1774 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-12-17 04:44:52,888 INFO L933 BasicCegarLoop]: 33 mSDtfsCounter, 88 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 765 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 842 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 765 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-17 04:44:52,889 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [88 Valid, 42 Invalid, 842 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 765 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-17 04:44:52,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4632 states. [2021-12-17 04:44:52,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4632 to 4276. [2021-12-17 04:44:52,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4276 states, 4275 states have (on average 1.0437426900584796) internal successors, (4462), 4275 states have internal predecessors, (4462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:44:52,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 4462 transitions. [2021-12-17 04:44:52,939 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 4462 transitions. Word has length 888 [2021-12-17 04:44:52,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:44:52,940 INFO L470 AbstractCegarLoop]: Abstraction has 4276 states and 4462 transitions. [2021-12-17 04:44:52,940 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 150.66666666666666) internal successors, (904), 6 states have internal predecessors, (904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:44:52,940 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 4462 transitions. [2021-12-17 04:44:52,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1056 [2021-12-17 04:44:52,949 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:44:52,949 INFO L514 BasicCegarLoop]: 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, 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, 8, 8, 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, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 04:44:52,966 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-12-17 04:44:53,166 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-12-17 04:44:53,167 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:44:53,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:44:53,167 INFO L85 PathProgramCache]: Analyzing trace with hash -1824429464, now seen corresponding path program 1 times [2021-12-17 04:44:53,167 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:44:53,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706462660] [2021-12-17 04:44:53,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:44:53,168 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:44:53,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:44:53,441 INFO L134 CoverageAnalysis]: Checked inductivity of 3575 backedges. 2520 proven. 72 refuted. 0 times theorem prover too weak. 983 trivial. 0 not checked. [2021-12-17 04:44:53,441 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:44:53,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706462660] [2021-12-17 04:44:53,441 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706462660] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 04:44:53,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1600418088] [2021-12-17 04:44:53,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:44:53,442 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 04:44:53,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 04:44:53,456 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) [2021-12-17 04:44:53,498 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-12-17 04:44:53,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:44:53,674 INFO L263 TraceCheckSpWp]: Trace formula consists of 1324 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-17 04:44:53,704 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 04:44:55,017 INFO L134 CoverageAnalysis]: Checked inductivity of 3575 backedges. 2479 proven. 666 refuted. 0 times theorem prover too weak. 430 trivial. 0 not checked. [2021-12-17 04:44:55,017 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-17 04:44:56,150 INFO L134 CoverageAnalysis]: Checked inductivity of 3575 backedges. 2592 proven. 0 refuted. 0 times theorem prover too weak. 983 trivial. 0 not checked. [2021-12-17 04:44:56,151 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1600418088] provided 1 perfect and 1 imperfect interpolant sequences [2021-12-17 04:44:56,151 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-12-17 04:44:56,151 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 6] total 9 [2021-12-17 04:44:56,151 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972395678] [2021-12-17 04:44:56,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:44:56,152 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 04:44:56,152 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:44:56,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 04:44:56,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-12-17 04:44:56,153 INFO L87 Difference]: Start difference. First operand 4276 states and 4462 transitions. Second operand has 5 states, 5 states have (on average 124.2) internal successors, (621), 5 states have internal predecessors, (621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:44:56,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:44:56,524 INFO L93 Difference]: Finished difference Result 8550 states and 8934 transitions. [2021-12-17 04:44:56,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 04:44:56,524 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 124.2) internal successors, (621), 5 states have internal predecessors, (621), 0 states have call successors, (0), 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 1055 [2021-12-17 04:44:56,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:44:56,530 INFO L225 Difference]: With dead ends: 8550 [2021-12-17 04:44:56,530 INFO L226 Difference]: Without dead ends: 4632 [2021-12-17 04:44:56,540 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2113 GetRequests, 2105 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-12-17 04:44:56,541 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 301 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 420 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-17 04:44:56,541 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [301 Valid, 9 Invalid, 491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 420 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-17 04:44:56,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4632 states. [2021-12-17 04:44:56,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4632 to 4632. [2021-12-17 04:44:56,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4632 states, 4631 states have (on average 1.0395163031742605) internal successors, (4814), 4631 states have internal predecessors, (4814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:44:56,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4632 states to 4632 states and 4814 transitions. [2021-12-17 04:44:56,583 INFO L78 Accepts]: Start accepts. Automaton has 4632 states and 4814 transitions. Word has length 1055 [2021-12-17 04:44:56,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:44:56,583 INFO L470 AbstractCegarLoop]: Abstraction has 4632 states and 4814 transitions. [2021-12-17 04:44:56,583 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 124.2) internal successors, (621), 5 states have internal predecessors, (621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:44:56,583 INFO L276 IsEmpty]: Start isEmpty. Operand 4632 states and 4814 transitions. [2021-12-17 04:44:56,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1215 [2021-12-17 04:44:56,595 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:44:56,596 INFO L514 BasicCegarLoop]: 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, 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 04:44:56,614 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-12-17 04:44:56,811 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-12-17 04:44:56,812 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:44:56,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:44:56,812 INFO L85 PathProgramCache]: Analyzing trace with hash 1652705126, now seen corresponding path program 1 times [2021-12-17 04:44:56,812 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:44:56,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758627826] [2021-12-17 04:44:56,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:44:56,812 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:44:56,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:44:57,113 INFO L134 CoverageAnalysis]: Checked inductivity of 4111 backedges. 3056 proven. 72 refuted. 0 times theorem prover too weak. 983 trivial. 0 not checked. [2021-12-17 04:44:57,114 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:44:57,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758627826] [2021-12-17 04:44:57,114 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758627826] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 04:44:57,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1261662545] [2021-12-17 04:44:57,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:44:57,114 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 04:44:57,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 04:44:57,115 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) [2021-12-17 04:44:57,133 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-12-17 04:44:57,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:44:57,382 INFO L263 TraceCheckSpWp]: Trace formula consists of 1484 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-17 04:44:57,388 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 04:44:58,831 INFO L134 CoverageAnalysis]: Checked inductivity of 4111 backedges. 2769 proven. 0 refuted. 0 times theorem prover too weak. 1342 trivial. 0 not checked. [2021-12-17 04:44:58,831 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 04:44:58,831 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1261662545] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:44:58,831 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 04:44:58,832 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2021-12-17 04:44:58,832 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192379257] [2021-12-17 04:44:58,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:44:58,832 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 04:44:58,832 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:44:58,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 04:44:58,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-12-17 04:44:58,833 INFO L87 Difference]: Start difference. First operand 4632 states and 4814 transitions. Second operand has 4 states, 4 states have (on average 177.25) internal successors, (709), 4 states have internal predecessors, (709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:44:59,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:44:59,344 INFO L93 Difference]: Finished difference Result 9618 states and 10000 transitions. [2021-12-17 04:44:59,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 04:44:59,345 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 177.25) internal successors, (709), 4 states have internal predecessors, (709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1214 [2021-12-17 04:44:59,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:44:59,353 INFO L225 Difference]: With dead ends: 9618 [2021-12-17 04:44:59,353 INFO L226 Difference]: Without dead ends: 5344 [2021-12-17 04:44:59,356 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1218 GetRequests, 1213 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-12-17 04:44:59,356 INFO L933 BasicCegarLoop]: 25 mSDtfsCounter, 16 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 801 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 832 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 801 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-17 04:44:59,356 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 33 Invalid, 832 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 801 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-17 04:44:59,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5344 states. [2021-12-17 04:44:59,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5344 to 4988. [2021-12-17 04:44:59,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4988 states, 4987 states have (on average 1.0378985361941047) internal successors, (5176), 4987 states have internal predecessors, (5176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:44:59,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4988 states to 4988 states and 5176 transitions. [2021-12-17 04:44:59,435 INFO L78 Accepts]: Start accepts. Automaton has 4988 states and 5176 transitions. Word has length 1214 [2021-12-17 04:44:59,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:44:59,435 INFO L470 AbstractCegarLoop]: Abstraction has 4988 states and 5176 transitions. [2021-12-17 04:44:59,436 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 177.25) internal successors, (709), 4 states have internal predecessors, (709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:44:59,436 INFO L276 IsEmpty]: Start isEmpty. Operand 4988 states and 5176 transitions. [2021-12-17 04:44:59,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1217 [2021-12-17 04:44:59,448 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:44:59,449 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 04:44:59,467 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-12-17 04:44:59,664 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-12-17 04:44:59,664 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:44:59,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:44:59,665 INFO L85 PathProgramCache]: Analyzing trace with hash -1564182830, now seen corresponding path program 1 times [2021-12-17 04:44:59,665 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:44:59,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880109397] [2021-12-17 04:44:59,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:44:59,665 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:44:59,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:44:59,963 INFO L134 CoverageAnalysis]: Checked inductivity of 3890 backedges. 2523 proven. 0 refuted. 0 times theorem prover too weak. 1367 trivial. 0 not checked. [2021-12-17 04:44:59,963 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:44:59,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880109397] [2021-12-17 04:44:59,963 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880109397] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:44:59,963 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 04:44:59,963 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 04:44:59,964 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935757226] [2021-12-17 04:44:59,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:44:59,965 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 04:44:59,965 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:44:59,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 04:44:59,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 04:44:59,965 INFO L87 Difference]: Start difference. First operand 4988 states and 5176 transitions. Second operand has 3 states, 3 states have (on average 177.0) internal successors, (531), 3 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:45:00,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:45:00,293 INFO L93 Difference]: Finished difference Result 9974 states and 10354 transitions. [2021-12-17 04:45:00,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 04:45:00,294 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 177.0) internal successors, (531), 3 states have internal predecessors, (531), 0 states have call successors, (0), 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 1216 [2021-12-17 04:45:00,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:45:00,300 INFO L225 Difference]: With dead ends: 9974 [2021-12-17 04:45:00,300 INFO L226 Difference]: Without dead ends: 5344 [2021-12-17 04:45:00,304 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 04:45:00,304 INFO L933 BasicCegarLoop]: 221 mSDtfsCounter, 6 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-17 04:45:00,305 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 225 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 409 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-17 04:45:00,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5344 states. [2021-12-17 04:45:00,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5344 to 5166. [2021-12-17 04:45:00,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5166 states, 5165 states have (on average 1.0288480154888673) internal successors, (5314), 5165 states have internal predecessors, (5314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:45:00,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5166 states to 5166 states and 5314 transitions. [2021-12-17 04:45:00,383 INFO L78 Accepts]: Start accepts. Automaton has 5166 states and 5314 transitions. Word has length 1216 [2021-12-17 04:45:00,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:45:00,384 INFO L470 AbstractCegarLoop]: Abstraction has 5166 states and 5314 transitions. [2021-12-17 04:45:00,384 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 177.0) internal successors, (531), 3 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:45:00,384 INFO L276 IsEmpty]: Start isEmpty. Operand 5166 states and 5314 transitions. [2021-12-17 04:45:00,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1272 [2021-12-17 04:45:00,398 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:45:00,398 INFO L514 BasicCegarLoop]: 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, 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, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 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, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 04:45:00,398 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-17 04:45:00,398 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:45:00,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:45:00,399 INFO L85 PathProgramCache]: Analyzing trace with hash -1879916566, now seen corresponding path program 1 times [2021-12-17 04:45:00,399 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:45:00,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458023233] [2021-12-17 04:45:00,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:45:00,400 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:45:00,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:45:00,708 INFO L134 CoverageAnalysis]: Checked inductivity of 4452 backedges. 2933 proven. 325 refuted. 0 times theorem prover too weak. 1194 trivial. 0 not checked. [2021-12-17 04:45:00,709 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:45:00,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458023233] [2021-12-17 04:45:00,709 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458023233] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 04:45:00,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1643143988] [2021-12-17 04:45:00,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:45:00,709 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 04:45:00,710 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 04:45:00,710 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) [2021-12-17 04:45:00,712 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-12-17 04:45:00,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:45:00,936 INFO L263 TraceCheckSpWp]: Trace formula consists of 1538 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-17 04:45:00,962 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 04:45:02,718 INFO L134 CoverageAnalysis]: Checked inductivity of 4452 backedges. 2868 proven. 0 refuted. 0 times theorem prover too weak. 1584 trivial. 0 not checked. [2021-12-17 04:45:02,718 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 04:45:02,719 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1643143988] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:45:02,719 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 04:45:02,719 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2021-12-17 04:45:02,719 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931865446] [2021-12-17 04:45:02,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:45:02,720 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 04:45:02,720 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:45:02,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 04:45:02,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-17 04:45:02,720 INFO L87 Difference]: Start difference. First operand 5166 states and 5314 transitions. Second operand has 4 states, 4 states have (on average 122.5) internal successors, (490), 3 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:45:03,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:45:03,221 INFO L93 Difference]: Finished difference Result 10508 states and 10810 transitions. [2021-12-17 04:45:03,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 04:45:03,222 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 122.5) internal successors, (490), 3 states have internal predecessors, (490), 0 states have call successors, (0), 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 1271 [2021-12-17 04:45:03,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:45:03,229 INFO L225 Difference]: With dead ends: 10508 [2021-12-17 04:45:03,229 INFO L226 Difference]: Without dead ends: 5522 [2021-12-17 04:45:03,233 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1275 GetRequests, 1269 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-17 04:45:03,234 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 60 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-17 04:45:03,234 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 44 Invalid, 621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 584 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-17 04:45:03,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5522 states. [2021-12-17 04:45:03,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5522 to 5344. [2021-12-17 04:45:03,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5344 states, 5343 states have (on average 1.0275126333520495) internal successors, (5490), 5343 states have internal predecessors, (5490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:45:03,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5344 states to 5344 states and 5490 transitions. [2021-12-17 04:45:03,283 INFO L78 Accepts]: Start accepts. Automaton has 5344 states and 5490 transitions. Word has length 1271 [2021-12-17 04:45:03,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:45:03,283 INFO L470 AbstractCegarLoop]: Abstraction has 5344 states and 5490 transitions. [2021-12-17 04:45:03,283 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 122.5) internal successors, (490), 3 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:45:03,283 INFO L276 IsEmpty]: Start isEmpty. Operand 5344 states and 5490 transitions. [2021-12-17 04:45:03,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1301 [2021-12-17 04:45:03,298 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:45:03,298 INFO L514 BasicCegarLoop]: 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, 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, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 04:45:03,318 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-12-17 04:45:03,516 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-12-17 04:45:03,516 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:45:03,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:45:03,517 INFO L85 PathProgramCache]: Analyzing trace with hash 1050045103, now seen corresponding path program 1 times [2021-12-17 04:45:03,517 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:45:03,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843891757] [2021-12-17 04:45:03,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:45:03,517 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:45:03,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:45:03,776 INFO L134 CoverageAnalysis]: Checked inductivity of 4568 backedges. 2984 proven. 0 refuted. 0 times theorem prover too weak. 1584 trivial. 0 not checked. [2021-12-17 04:45:03,777 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:45:03,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843891757] [2021-12-17 04:45:03,777 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843891757] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:45:03,777 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 04:45:03,777 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 04:45:03,777 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170530471] [2021-12-17 04:45:03,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:45:03,779 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 04:45:03,779 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:45:03,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 04:45:03,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 04:45:03,780 INFO L87 Difference]: Start difference. First operand 5344 states and 5490 transitions. Second operand has 3 states, 3 states have (on average 173.0) internal successors, (519), 3 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:45:04,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:45:04,081 INFO L93 Difference]: Finished difference Result 10686 states and 10991 transitions. [2021-12-17 04:45:04,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 04:45:04,082 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 173.0) internal successors, (519), 3 states have internal predecessors, (519), 0 states have call successors, (0), 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 1300 [2021-12-17 04:45:04,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:45:04,088 INFO L225 Difference]: With dead ends: 10686 [2021-12-17 04:45:04,089 INFO L226 Difference]: Without dead ends: 5700 [2021-12-17 04:45:04,092 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 04:45:04,093 INFO L933 BasicCegarLoop]: 218 mSDtfsCounter, 23 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-17 04:45:04,094 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 223 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-17 04:45:04,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5700 states. [2021-12-17 04:45:04,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5700 to 5522. [2021-12-17 04:45:04,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5522 states, 5521 states have (on average 1.0266256113023002) internal successors, (5668), 5521 states have internal predecessors, (5668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:45:04,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5522 states to 5522 states and 5668 transitions. [2021-12-17 04:45:04,147 INFO L78 Accepts]: Start accepts. Automaton has 5522 states and 5668 transitions. Word has length 1300 [2021-12-17 04:45:04,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:45:04,147 INFO L470 AbstractCegarLoop]: Abstraction has 5522 states and 5668 transitions. [2021-12-17 04:45:04,148 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 173.0) internal successors, (519), 3 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:45:04,148 INFO L276 IsEmpty]: Start isEmpty. Operand 5522 states and 5668 transitions. [2021-12-17 04:45:04,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1375 [2021-12-17 04:45:04,163 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:45:04,164 INFO L514 BasicCegarLoop]: 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, 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, 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 04:45:04,164 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-17 04:45:04,164 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:45:04,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:45:04,164 INFO L85 PathProgramCache]: Analyzing trace with hash 795492892, now seen corresponding path program 1 times [2021-12-17 04:45:04,166 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:45:04,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291804787] [2021-12-17 04:45:04,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:45:04,166 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:45:04,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:45:04,499 INFO L134 CoverageAnalysis]: Checked inductivity of 5039 backedges. 3036 proven. 0 refuted. 0 times theorem prover too weak. 2003 trivial. 0 not checked. [2021-12-17 04:45:04,499 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:45:04,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291804787] [2021-12-17 04:45:04,499 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291804787] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:45:04,499 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 04:45:04,500 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 04:45:04,500 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022425407] [2021-12-17 04:45:04,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:45:04,500 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 04:45:04,501 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:45:04,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 04:45:04,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 04:45:04,501 INFO L87 Difference]: Start difference. First operand 5522 states and 5668 transitions. Second operand has 3 states, 3 states have (on average 177.33333333333334) internal successors, (532), 3 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:45:04,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:45:04,824 INFO L93 Difference]: Finished difference Result 10864 states and 11155 transitions. [2021-12-17 04:45:04,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 04:45:04,825 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 177.33333333333334) internal successors, (532), 3 states have internal predecessors, (532), 0 states have call successors, (0), 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 1374 [2021-12-17 04:45:04,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:45:04,831 INFO L225 Difference]: With dead ends: 10864 [2021-12-17 04:45:04,831 INFO L226 Difference]: Without dead ends: 5344 [2021-12-17 04:45:04,835 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 04:45:04,836 INFO L933 BasicCegarLoop]: 212 mSDtfsCounter, 4 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-17 04:45:04,836 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 217 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 396 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-17 04:45:04,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5344 states. [2021-12-17 04:45:04,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5344 to 4632. [2021-12-17 04:45:04,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4632 states, 4631 states have (on average 1.0224573526236234) internal successors, (4735), 4631 states have internal predecessors, (4735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:45:04,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4632 states to 4632 states and 4735 transitions. [2021-12-17 04:45:04,888 INFO L78 Accepts]: Start accepts. Automaton has 4632 states and 4735 transitions. Word has length 1374 [2021-12-17 04:45:04,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:45:04,889 INFO L470 AbstractCegarLoop]: Abstraction has 4632 states and 4735 transitions. [2021-12-17 04:45:04,889 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 177.33333333333334) internal successors, (532), 3 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:45:04,889 INFO L276 IsEmpty]: Start isEmpty. Operand 4632 states and 4735 transitions. [2021-12-17 04:45:04,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1465 [2021-12-17 04:45:04,905 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:45:04,905 INFO L514 BasicCegarLoop]: 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, 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, 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, 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, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 04:45:04,905 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-17 04:45:04,905 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:45:04,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:45:04,906 INFO L85 PathProgramCache]: Analyzing trace with hash 1326804845, now seen corresponding path program 1 times [2021-12-17 04:45:04,906 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:45:04,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798261449] [2021-12-17 04:45:04,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:45:04,906 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:45:05,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:45:05,297 INFO L134 CoverageAnalysis]: Checked inductivity of 6247 backedges. 2663 proven. 78 refuted. 0 times theorem prover too weak. 3506 trivial. 0 not checked. [2021-12-17 04:45:05,297 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:45:05,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798261449] [2021-12-17 04:45:05,298 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798261449] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 04:45:05,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1948029108] [2021-12-17 04:45:05,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:45:05,298 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 04:45:05,298 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 04:45:05,299 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) [2021-12-17 04:45:05,300 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-12-17 04:45:05,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:45:05,544 INFO L263 TraceCheckSpWp]: Trace formula consists of 1777 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-17 04:45:05,556 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 04:45:07,490 INFO L134 CoverageAnalysis]: Checked inductivity of 6247 backedges. 1632 proven. 39 refuted. 0 times theorem prover too weak. 4576 trivial. 0 not checked. [2021-12-17 04:45:07,490 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-17 04:45:08,919 INFO L134 CoverageAnalysis]: Checked inductivity of 6247 backedges. 1632 proven. 39 refuted. 0 times theorem prover too weak. 4576 trivial. 0 not checked. [2021-12-17 04:45:08,919 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1948029108] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-17 04:45:08,919 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-17 04:45:08,919 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 8 [2021-12-17 04:45:08,935 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411213558] [2021-12-17 04:45:08,935 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-17 04:45:08,937 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-17 04:45:08,937 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:45:08,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-17 04:45:08,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-12-17 04:45:08,937 INFO L87 Difference]: Start difference. First operand 4632 states and 4735 transitions. Second operand has 8 states, 8 states have (on average 121.25) internal successors, (970), 8 states have internal predecessors, (970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:45:10,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:45:10,581 INFO L93 Difference]: Finished difference Result 11040 states and 11296 transitions. [2021-12-17 04:45:10,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 04:45:10,582 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 121.25) internal successors, (970), 8 states have internal predecessors, (970), 0 states have call successors, (0), 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 1464 [2021-12-17 04:45:10,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:45:10,583 INFO L225 Difference]: With dead ends: 11040 [2021-12-17 04:45:10,583 INFO L226 Difference]: Without dead ends: 0 [2021-12-17 04:45:10,588 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2935 GetRequests, 2926 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-12-17 04:45:10,589 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 756 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 3391 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 756 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 3467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 3391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-17 04:45:10,589 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [756 Valid, 59 Invalid, 3467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 3391 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-17 04:45:10,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-17 04:45:10,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-17 04:45:10,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:45:10,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-17 04:45:10,590 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1464 [2021-12-17 04:45:10,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:45:10,590 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-17 04:45:10,590 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 121.25) internal successors, (970), 8 states have internal predecessors, (970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:45:10,590 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-17 04:45:10,590 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-17 04:45:10,592 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-17 04:45:10,611 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-12-17 04:45:10,808 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2021-12-17 04:45:10,809 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-17 04:45:13,693 INFO L858 garLoopResultBuilder]: For program point L762(lines 762 880) no Hoare annotation was computed. [2021-12-17 04:45:13,693 INFO L858 garLoopResultBuilder]: For program point L895(line 895) no Hoare annotation was computed. [2021-12-17 04:45:13,693 INFO L858 garLoopResultBuilder]: For program point L829(lines 829 880) no Hoare annotation was computed. [2021-12-17 04:45:13,693 INFO L858 garLoopResultBuilder]: For program point L631(lines 631 880) no Hoare annotation was computed. [2021-12-17 04:45:13,693 INFO L858 garLoopResultBuilder]: For program point L565(lines 565 880) no Hoare annotation was computed. [2021-12-17 04:45:13,694 INFO L858 garLoopResultBuilder]: For program point L169-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:13,694 INFO L858 garLoopResultBuilder]: For program point L103-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:13,694 INFO L858 garLoopResultBuilder]: For program point L37-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:13,694 INFO L858 garLoopResultBuilder]: For program point L698(lines 698 880) no Hoare annotation was computed. [2021-12-17 04:45:13,694 INFO L858 garLoopResultBuilder]: For program point L500(lines 500 880) no Hoare annotation was computed. [2021-12-17 04:45:13,694 INFO L858 garLoopResultBuilder]: For program point L170(line 170) no Hoare annotation was computed. [2021-12-17 04:45:13,694 INFO L858 garLoopResultBuilder]: For program point L104(line 104) no Hoare annotation was computed. [2021-12-17 04:45:13,694 INFO L858 garLoopResultBuilder]: For program point L38(line 38) no Hoare annotation was computed. [2021-12-17 04:45:13,694 INFO L858 garLoopResultBuilder]: For program point L369(lines 369 880) no Hoare annotation was computed. [2021-12-17 04:45:13,694 INFO L858 garLoopResultBuilder]: For program point L303(lines 303 880) no Hoare annotation was computed. [2021-12-17 04:45:13,694 INFO L858 garLoopResultBuilder]: For program point L436(lines 436 880) no Hoare annotation was computed. [2021-12-17 04:45:13,694 INFO L858 garLoopResultBuilder]: For program point L172-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:13,694 INFO L858 garLoopResultBuilder]: For program point L106-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:13,694 INFO L858 garLoopResultBuilder]: For program point L40-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:13,694 INFO L858 garLoopResultBuilder]: For program point L239(lines 239 880) no Hoare annotation was computed. [2021-12-17 04:45:13,694 INFO L858 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2021-12-17 04:45:13,694 INFO L858 garLoopResultBuilder]: For program point L107(line 107) no Hoare annotation was computed. [2021-12-17 04:45:13,694 INFO L858 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2021-12-17 04:45:13,694 INFO L858 garLoopResultBuilder]: For program point L768(lines 768 880) no Hoare annotation was computed. [2021-12-17 04:45:13,694 INFO L858 garLoopResultBuilder]: For program point L636(lines 636 880) no Hoare annotation was computed. [2021-12-17 04:45:13,695 INFO L858 garLoopResultBuilder]: For program point L835(lines 835 880) no Hoare annotation was computed. [2021-12-17 04:45:13,695 INFO L858 garLoopResultBuilder]: For program point L571(lines 571 880) no Hoare annotation was computed. [2021-12-17 04:45:13,695 INFO L858 garLoopResultBuilder]: For program point L505(lines 505 880) no Hoare annotation was computed. [2021-12-17 04:45:13,695 INFO L858 garLoopResultBuilder]: For program point L175-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:13,695 INFO L858 garLoopResultBuilder]: For program point L109-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:13,695 INFO L858 garLoopResultBuilder]: For program point L43-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:13,695 INFO L858 garLoopResultBuilder]: For program point L704(lines 704 880) no Hoare annotation was computed. [2021-12-17 04:45:13,695 INFO L858 garLoopResultBuilder]: For program point L176(line 176) no Hoare annotation was computed. [2021-12-17 04:45:13,695 INFO L858 garLoopResultBuilder]: For program point L110(line 110) no Hoare annotation was computed. [2021-12-17 04:45:13,695 INFO L858 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2021-12-17 04:45:13,695 INFO L858 garLoopResultBuilder]: For program point L309(lines 309 880) no Hoare annotation was computed. [2021-12-17 04:45:13,695 INFO L858 garLoopResultBuilder]: For program point L442(lines 442 880) no Hoare annotation was computed. [2021-12-17 04:45:13,695 INFO L858 garLoopResultBuilder]: For program point L376(lines 376 880) no Hoare annotation was computed. [2021-12-17 04:45:13,695 INFO L858 garLoopResultBuilder]: For program point L178-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:13,695 INFO L858 garLoopResultBuilder]: For program point L112-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:13,695 INFO L858 garLoopResultBuilder]: For program point L46-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:13,695 INFO L858 garLoopResultBuilder]: For program point L245(lines 245 880) no Hoare annotation was computed. [2021-12-17 04:45:13,695 INFO L858 garLoopResultBuilder]: For program point L179(line 179) no Hoare annotation was computed. [2021-12-17 04:45:13,695 INFO L858 garLoopResultBuilder]: For program point L113(line 113) no Hoare annotation was computed. [2021-12-17 04:45:13,696 INFO L858 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2021-12-17 04:45:13,696 INFO L858 garLoopResultBuilder]: For program point L774(lines 774 880) no Hoare annotation was computed. [2021-12-17 04:45:13,696 INFO L858 garLoopResultBuilder]: For program point L642(lines 642 880) no Hoare annotation was computed. [2021-12-17 04:45:13,696 INFO L858 garLoopResultBuilder]: For program point L510(lines 510 880) no Hoare annotation was computed. [2021-12-17 04:45:13,696 INFO L858 garLoopResultBuilder]: For program point L841(lines 841 880) no Hoare annotation was computed. [2021-12-17 04:45:13,696 INFO L858 garLoopResultBuilder]: For program point L181-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:13,696 INFO L858 garLoopResultBuilder]: For program point L115-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:13,696 INFO L858 garLoopResultBuilder]: For program point L49-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:13,696 INFO L858 garLoopResultBuilder]: For program point L710(lines 710 880) no Hoare annotation was computed. [2021-12-17 04:45:13,696 INFO L858 garLoopResultBuilder]: For program point L578(lines 578 880) no Hoare annotation was computed. [2021-12-17 04:45:13,696 INFO L858 garLoopResultBuilder]: For program point L182(line 182) no Hoare annotation was computed. [2021-12-17 04:45:13,696 INFO L858 garLoopResultBuilder]: For program point L116(line 116) no Hoare annotation was computed. [2021-12-17 04:45:13,696 INFO L858 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2021-12-17 04:45:13,696 INFO L858 garLoopResultBuilder]: For program point L315(lines 315 880) no Hoare annotation was computed. [2021-12-17 04:45:13,696 INFO L858 garLoopResultBuilder]: For program point L448(lines 448 880) no Hoare annotation was computed. [2021-12-17 04:45:13,696 INFO L858 garLoopResultBuilder]: For program point L382(lines 382 880) no Hoare annotation was computed. [2021-12-17 04:45:13,696 INFO L858 garLoopResultBuilder]: For program point L184-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:13,696 INFO L858 garLoopResultBuilder]: For program point L118-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:13,696 INFO L858 garLoopResultBuilder]: For program point L52-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:13,696 INFO L858 garLoopResultBuilder]: For program point L251(lines 251 880) no Hoare annotation was computed. [2021-12-17 04:45:13,696 INFO L858 garLoopResultBuilder]: For program point L185(line 185) no Hoare annotation was computed. [2021-12-17 04:45:13,696 INFO L858 garLoopResultBuilder]: For program point L119(line 119) no Hoare annotation was computed. [2021-12-17 04:45:13,696 INFO L858 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2021-12-17 04:45:13,697 INFO L858 garLoopResultBuilder]: For program point L648(lines 648 880) no Hoare annotation was computed. [2021-12-17 04:45:13,697 INFO L858 garLoopResultBuilder]: For program point L516(lines 516 880) no Hoare annotation was computed. [2021-12-17 04:45:13,697 INFO L858 garLoopResultBuilder]: For program point L847(lines 847 880) no Hoare annotation was computed. [2021-12-17 04:45:13,697 INFO L858 garLoopResultBuilder]: For program point L781(lines 781 880) no Hoare annotation was computed. [2021-12-17 04:45:13,697 INFO L858 garLoopResultBuilder]: For program point L583(lines 583 880) no Hoare annotation was computed. [2021-12-17 04:45:13,697 INFO L858 garLoopResultBuilder]: For program point L187-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:13,697 INFO L858 garLoopResultBuilder]: For program point L121-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:13,697 INFO L858 garLoopResultBuilder]: For program point L55-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:13,697 INFO L858 garLoopResultBuilder]: For program point L716(lines 716 880) no Hoare annotation was computed. [2021-12-17 04:45:13,697 INFO L858 garLoopResultBuilder]: For program point L188(line 188) no Hoare annotation was computed. [2021-12-17 04:45:13,697 INFO L858 garLoopResultBuilder]: For program point L122(line 122) no Hoare annotation was computed. [2021-12-17 04:45:13,697 INFO L858 garLoopResultBuilder]: For program point L56(line 56) no Hoare annotation was computed. [2021-12-17 04:45:13,697 INFO L858 garLoopResultBuilder]: For program point L321(lines 321 880) no Hoare annotation was computed. [2021-12-17 04:45:13,697 INFO L858 garLoopResultBuilder]: For program point L454(lines 454 880) no Hoare annotation was computed. [2021-12-17 04:45:13,697 INFO L858 garLoopResultBuilder]: For program point L388(lines 388 880) no Hoare annotation was computed. [2021-12-17 04:45:13,697 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-17 04:45:13,697 INFO L858 garLoopResultBuilder]: For program point L190-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:13,697 INFO L858 garLoopResultBuilder]: For program point L124-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:13,697 INFO L858 garLoopResultBuilder]: For program point L58-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:13,697 INFO L858 garLoopResultBuilder]: For program point L257(lines 257 880) no Hoare annotation was computed. [2021-12-17 04:45:13,697 INFO L858 garLoopResultBuilder]: For program point L191(line 191) no Hoare annotation was computed. [2021-12-17 04:45:13,697 INFO L858 garLoopResultBuilder]: For program point L125(line 125) no Hoare annotation was computed. [2021-12-17 04:45:13,698 INFO L858 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2021-12-17 04:45:13,698 INFO L858 garLoopResultBuilder]: For program point L852(lines 852 880) no Hoare annotation was computed. [2021-12-17 04:45:13,698 INFO L858 garLoopResultBuilder]: For program point L654(lines 654 880) no Hoare annotation was computed. [2021-12-17 04:45:13,698 INFO L858 garLoopResultBuilder]: For program point L522(lines 522 880) no Hoare annotation was computed. [2021-12-17 04:45:13,698 INFO L858 garLoopResultBuilder]: For program point L787(lines 787 880) no Hoare annotation was computed. [2021-12-17 04:45:13,698 INFO L858 garLoopResultBuilder]: For program point L589(lines 589 880) no Hoare annotation was computed. [2021-12-17 04:45:13,698 INFO L858 garLoopResultBuilder]: For program point L193-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:13,698 INFO L858 garLoopResultBuilder]: For program point L127-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:13,698 INFO L858 garLoopResultBuilder]: For program point L61-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:13,698 INFO L858 garLoopResultBuilder]: For program point L722(lines 722 880) no Hoare annotation was computed. [2021-12-17 04:45:13,698 INFO L858 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2021-12-17 04:45:13,698 INFO L858 garLoopResultBuilder]: For program point L128(line 128) no Hoare annotation was computed. [2021-12-17 04:45:13,698 INFO L858 garLoopResultBuilder]: For program point L62(line 62) no Hoare annotation was computed. [2021-12-17 04:45:13,698 INFO L858 garLoopResultBuilder]: For program point L459(lines 459 880) no Hoare annotation was computed. [2021-12-17 04:45:13,698 INFO L858 garLoopResultBuilder]: For program point L327(lines 327 880) no Hoare annotation was computed. [2021-12-17 04:45:13,698 INFO L858 garLoopResultBuilder]: For program point L394(lines 394 880) no Hoare annotation was computed. [2021-12-17 04:45:13,698 INFO L858 garLoopResultBuilder]: For program point L262(lines 262 880) no Hoare annotation was computed. [2021-12-17 04:45:13,698 INFO L858 garLoopResultBuilder]: For program point L196-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:13,698 INFO L858 garLoopResultBuilder]: For program point L130-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:13,698 INFO L858 garLoopResultBuilder]: For program point L64-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:13,698 INFO L858 garLoopResultBuilder]: For program point L197(line 197) no Hoare annotation was computed. [2021-12-17 04:45:13,698 INFO L858 garLoopResultBuilder]: For program point L131(line 131) no Hoare annotation was computed. [2021-12-17 04:45:13,698 INFO L858 garLoopResultBuilder]: For program point L65(line 65) no Hoare annotation was computed. [2021-12-17 04:45:13,699 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-17 04:45:13,699 INFO L858 garLoopResultBuilder]: For program point L858(lines 858 880) no Hoare annotation was computed. [2021-12-17 04:45:13,699 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 137) no Hoare annotation was computed. [2021-12-17 04:45:13,699 INFO L858 garLoopResultBuilder]: For program point L660(lines 660 880) no Hoare annotation was computed. [2021-12-17 04:45:13,699 INFO L858 garLoopResultBuilder]: For program point L528(lines 528 880) no Hoare annotation was computed. [2021-12-17 04:45:13,699 INFO L858 garLoopResultBuilder]: For program point L793(lines 793 880) no Hoare annotation was computed. [2021-12-17 04:45:13,699 INFO L858 garLoopResultBuilder]: For program point L595(lines 595 880) no Hoare annotation was computed. [2021-12-17 04:45:13,699 INFO L858 garLoopResultBuilder]: For program point L199-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:13,699 INFO L858 garLoopResultBuilder]: For program point L133-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:13,699 INFO L858 garLoopResultBuilder]: For program point L67-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:13,699 INFO L858 garLoopResultBuilder]: For program point L728(lines 728 880) no Hoare annotation was computed. [2021-12-17 04:45:13,699 INFO L858 garLoopResultBuilder]: For program point L464(lines 464 880) no Hoare annotation was computed. [2021-12-17 04:45:13,699 INFO L858 garLoopResultBuilder]: For program point L200(line 200) no Hoare annotation was computed. [2021-12-17 04:45:13,699 INFO L858 garLoopResultBuilder]: For program point L134(line 134) no Hoare annotation was computed. [2021-12-17 04:45:13,699 INFO L858 garLoopResultBuilder]: For program point L68(line 68) no Hoare annotation was computed. [2021-12-17 04:45:13,699 INFO L858 garLoopResultBuilder]: For program point L333(lines 333 880) no Hoare annotation was computed. [2021-12-17 04:45:13,699 INFO L858 garLoopResultBuilder]: For program point L400(lines 400 880) no Hoare annotation was computed. [2021-12-17 04:45:13,699 INFO L858 garLoopResultBuilder]: For program point L268(lines 268 880) no Hoare annotation was computed. [2021-12-17 04:45:13,699 INFO L858 garLoopResultBuilder]: For program point L202-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:13,699 INFO L858 garLoopResultBuilder]: For program point L136-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:13,699 INFO L858 garLoopResultBuilder]: For program point L70-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:13,700 INFO L858 garLoopResultBuilder]: For program point L203(line 203) no Hoare annotation was computed. [2021-12-17 04:45:13,700 INFO L858 garLoopResultBuilder]: For program point L137(line 137) no Hoare annotation was computed. [2021-12-17 04:45:13,700 INFO L858 garLoopResultBuilder]: For program point L71(line 71) no Hoare annotation was computed. [2021-12-17 04:45:13,700 INFO L858 garLoopResultBuilder]: For program point L864(lines 864 880) no Hoare annotation was computed. [2021-12-17 04:45:13,700 INFO L858 garLoopResultBuilder]: For program point L666(lines 666 880) no Hoare annotation was computed. [2021-12-17 04:45:13,700 INFO L858 garLoopResultBuilder]: For program point L534(lines 534 880) no Hoare annotation was computed. [2021-12-17 04:45:13,700 INFO L858 garLoopResultBuilder]: For program point L799(lines 799 880) no Hoare annotation was computed. [2021-12-17 04:45:13,700 INFO L858 garLoopResultBuilder]: For program point L601(lines 601 880) no Hoare annotation was computed. [2021-12-17 04:45:13,700 INFO L858 garLoopResultBuilder]: For program point L205-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:13,700 INFO L858 garLoopResultBuilder]: For program point L139-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:13,700 INFO L858 garLoopResultBuilder]: For program point L73-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:13,700 INFO L858 garLoopResultBuilder]: For program point L734(lines 734 880) no Hoare annotation was computed. [2021-12-17 04:45:13,700 INFO L858 garLoopResultBuilder]: For program point L470(lines 470 880) no Hoare annotation was computed. [2021-12-17 04:45:13,700 INFO L858 garLoopResultBuilder]: For program point L206(line 206) no Hoare annotation was computed. [2021-12-17 04:45:13,700 INFO L858 garLoopResultBuilder]: For program point L140(line 140) no Hoare annotation was computed. [2021-12-17 04:45:13,700 INFO L858 garLoopResultBuilder]: For program point L74(line 74) no Hoare annotation was computed. [2021-12-17 04:45:13,700 INFO L858 garLoopResultBuilder]: For program point L339(lines 339 880) no Hoare annotation was computed. [2021-12-17 04:45:13,700 INFO L858 garLoopResultBuilder]: For program point L406(lines 406 880) no Hoare annotation was computed. [2021-12-17 04:45:13,700 INFO L858 garLoopResultBuilder]: For program point L274(lines 274 880) no Hoare annotation was computed. [2021-12-17 04:45:13,700 INFO L858 garLoopResultBuilder]: For program point L208-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:13,700 INFO L858 garLoopResultBuilder]: For program point L142-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:13,700 INFO L858 garLoopResultBuilder]: For program point L76-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:13,701 INFO L858 garLoopResultBuilder]: For program point L869(lines 869 880) no Hoare annotation was computed. [2021-12-17 04:45:13,701 INFO L858 garLoopResultBuilder]: For program point L209(line 209) no Hoare annotation was computed. [2021-12-17 04:45:13,701 INFO L858 garLoopResultBuilder]: For program point L143(line 143) no Hoare annotation was computed. [2021-12-17 04:45:13,701 INFO L858 garLoopResultBuilder]: For program point L77(line 77) no Hoare annotation was computed. [2021-12-17 04:45:13,701 INFO L858 garLoopResultBuilder]: For program point L672(lines 672 880) no Hoare annotation was computed. [2021-12-17 04:45:13,701 INFO L858 garLoopResultBuilder]: For program point L540(lines 540 880) no Hoare annotation was computed. [2021-12-17 04:45:13,701 INFO L858 garLoopResultBuilder]: For program point L805(lines 805 880) no Hoare annotation was computed. [2021-12-17 04:45:13,701 INFO L858 garLoopResultBuilder]: For program point L607(lines 607 880) no Hoare annotation was computed. [2021-12-17 04:45:13,701 INFO L858 garLoopResultBuilder]: For program point L211-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:13,701 INFO L858 garLoopResultBuilder]: For program point L145-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:13,701 INFO L858 garLoopResultBuilder]: For program point L79-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:13,701 INFO L858 garLoopResultBuilder]: For program point L740(lines 740 880) no Hoare annotation was computed. [2021-12-17 04:45:13,701 INFO L858 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2021-12-17 04:45:13,701 INFO L858 garLoopResultBuilder]: For program point L146(line 146) no Hoare annotation was computed. [2021-12-17 04:45:13,701 INFO L858 garLoopResultBuilder]: For program point L80(line 80) no Hoare annotation was computed. [2021-12-17 04:45:13,701 INFO L858 garLoopResultBuilder]: For program point L477(lines 477 880) no Hoare annotation was computed. [2021-12-17 04:45:13,701 INFO L858 garLoopResultBuilder]: For program point L345(lines 345 880) no Hoare annotation was computed. [2021-12-17 04:45:13,701 INFO L858 garLoopResultBuilder]: For program point L279(lines 279 880) no Hoare annotation was computed. [2021-12-17 04:45:13,701 INFO L858 garLoopResultBuilder]: For program point L412(lines 412 880) no Hoare annotation was computed. [2021-12-17 04:45:13,701 INFO L858 garLoopResultBuilder]: For program point L148-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:13,701 INFO L858 garLoopResultBuilder]: For program point L82-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:13,701 INFO L858 garLoopResultBuilder]: For program point L875(lines 875 880) no Hoare annotation was computed. [2021-12-17 04:45:13,701 INFO L858 garLoopResultBuilder]: For program point L149(line 149) no Hoare annotation was computed. [2021-12-17 04:45:13,702 INFO L858 garLoopResultBuilder]: For program point L83(line 83) no Hoare annotation was computed. [2021-12-17 04:45:13,702 INFO L858 garLoopResultBuilder]: For program point L678(lines 678 880) no Hoare annotation was computed. [2021-12-17 04:45:13,702 INFO L858 garLoopResultBuilder]: For program point L546(lines 546 880) no Hoare annotation was computed. [2021-12-17 04:45:13,702 INFO L858 garLoopResultBuilder]: For program point L811(lines 811 880) no Hoare annotation was computed. [2021-12-17 04:45:13,702 INFO L858 garLoopResultBuilder]: For program point L745(lines 745 880) no Hoare annotation was computed. [2021-12-17 04:45:13,702 INFO L858 garLoopResultBuilder]: For program point L613(lines 613 880) no Hoare annotation was computed. [2021-12-17 04:45:13,702 INFO L858 garLoopResultBuilder]: For program point L151-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:13,702 INFO L858 garLoopResultBuilder]: For program point L85-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:13,702 INFO L858 garLoopResultBuilder]: For program point L482(lines 482 880) no Hoare annotation was computed. [2021-12-17 04:45:13,702 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-17 04:45:13,702 INFO L858 garLoopResultBuilder]: For program point L152(line 152) no Hoare annotation was computed. [2021-12-17 04:45:13,702 INFO L858 garLoopResultBuilder]: For program point L86(line 86) no Hoare annotation was computed. [2021-12-17 04:45:13,702 INFO L858 garLoopResultBuilder]: For program point L351(lines 351 880) no Hoare annotation was computed. [2021-12-17 04:45:13,702 INFO L858 garLoopResultBuilder]: For program point L285(lines 285 880) no Hoare annotation was computed. [2021-12-17 04:45:13,702 INFO L858 garLoopResultBuilder]: For program point L418(lines 418 880) no Hoare annotation was computed. [2021-12-17 04:45:13,702 INFO L858 garLoopResultBuilder]: For program point L154-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:13,702 INFO L858 garLoopResultBuilder]: For program point L88-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:13,703 INFO L854 garLoopResultBuilder]: At program point L881(lines 30 882) the Hoare annotation is: (let ((.cse17 (<= 7 ~a15~0)) (.cse18 (< 80 ~a12~0)) (.cse15 (<= ~a12~0 11)) (.cse3 (< 11 ~a12~0)) (.cse1 (= ~a24~0 1)) (.cse2 (<= ~a15~0 8)) (.cse20 (<= (+ ~a12~0 43) 0))) (let ((.cse8 (let ((.cse21 (<= ~a15~0 5))) (or (and .cse21 .cse1) (and .cse21 .cse2 .cse20)))) (.cse10 (<= 8 ~a21~0)) (.cse11 (<= ~a21~0 8)) (.cse5 (<= ~a12~0 10)) (.cse9 (<= 8 ~a15~0)) (.cse12 (or (not (= 9 ~a15~0)) (and (or .cse18 .cse15) (or .cse3 .cse20)))) (.cse16 (<= ~a12~0 80)) (.cse13 (<= 12849 ~a12~0)) (.cse19 (<= 9 ~a21~0)) (.cse0 (<= ~a21~0 6)) (.cse4 (not (= 5 ~a15~0))) (.cse14 (<= 10 ~a21~0)) (.cse6 (or (and .cse2 (not (= ~a21~0 6))) (and .cse17 .cse2))) (.cse7 (<= ~a12~0 600060))) (or (and (<= ~a12~0 73282) .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse0 .cse1 .cse5 .cse6 .cse7) (and .cse1 .cse8) (and .cse9 .cse1 .cse10 .cse7 .cse11 .cse12) (and .cse4 .cse0 .cse1 .cse13 .cse6 .cse7) (and .cse9 .cse3 .cse1 .cse7 (<= 7 ~a21~0) .cse12 (<= ~a21~0 7)) (and .cse14 .cse1 .cse15) (and .cse1 .cse10 (<= ~a12~0 76) .cse11) (and .cse9 (< 11 (div (+ (* (div (+ (* ~a12~0 10) 2779120) 9) (- 1)) 437300) 10)) .cse1 .cse13 .cse12) (and .cse1 .cse2 .cse16 .cse10 .cse11) (and .cse0 .cse8) (and .cse1 .cse10 .cse13 .cse7 .cse11) (and .cse17 .cse1 .cse2 .cse5) (and .cse9 .cse1 .cse18 .cse7 .cse12 .cse19) (and .cse4 .cse1 (<= ~a21~0 9) .cse16 .cse6 .cse19) (and .cse4 .cse1 .cse13 .cse6 .cse7 .cse19) (and .cse0 .cse1 .cse2 .cse20) (and .cse4 .cse14 .cse1 .cse18 .cse6 .cse7)))) [2021-12-17 04:45:13,703 INFO L858 garLoopResultBuilder]: For program point L551(lines 551 880) no Hoare annotation was computed. [2021-12-17 04:45:13,703 INFO L858 garLoopResultBuilder]: For program point L221(lines 221 880) no Hoare annotation was computed. [2021-12-17 04:45:13,703 INFO L858 garLoopResultBuilder]: For program point L155(line 155) no Hoare annotation was computed. [2021-12-17 04:45:13,703 INFO L858 garLoopResultBuilder]: For program point L89(line 89) no Hoare annotation was computed. [2021-12-17 04:45:13,703 INFO L858 garLoopResultBuilder]: For program point L684(lines 684 880) no Hoare annotation was computed. [2021-12-17 04:45:13,703 INFO L858 garLoopResultBuilder]: For program point L817(lines 817 880) no Hoare annotation was computed. [2021-12-17 04:45:13,703 INFO L858 garLoopResultBuilder]: For program point L751(lines 751 880) no Hoare annotation was computed. [2021-12-17 04:45:13,703 INFO L858 garLoopResultBuilder]: For program point L619(lines 619 880) no Hoare annotation was computed. [2021-12-17 04:45:13,703 INFO L858 garLoopResultBuilder]: For program point L157-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:13,703 INFO L858 garLoopResultBuilder]: For program point L91-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:13,703 INFO L861 garLoopResultBuilder]: At program point L884(lines 884 900) the Hoare annotation is: true [2021-12-17 04:45:13,703 INFO L858 garLoopResultBuilder]: For program point L488(lines 488 880) no Hoare annotation was computed. [2021-12-17 04:45:13,703 INFO L858 garLoopResultBuilder]: For program point L290(lines 290 880) no Hoare annotation was computed. [2021-12-17 04:45:13,703 INFO L858 garLoopResultBuilder]: For program point L158(line 158) no Hoare annotation was computed. [2021-12-17 04:45:13,703 INFO L858 garLoopResultBuilder]: For program point L92(line 92) no Hoare annotation was computed. [2021-12-17 04:45:13,703 INFO L858 garLoopResultBuilder]: For program point L687(lines 687 880) no Hoare annotation was computed. [2021-12-17 04:45:13,703 INFO L858 garLoopResultBuilder]: For program point L357(lines 357 880) no Hoare annotation was computed. [2021-12-17 04:45:13,703 INFO L858 garLoopResultBuilder]: For program point L424(lines 424 880) no Hoare annotation was computed. [2021-12-17 04:45:13,703 INFO L858 garLoopResultBuilder]: For program point L160-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:13,704 INFO L858 garLoopResultBuilder]: For program point L94-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:13,704 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-17 04:45:13,704 INFO L858 garLoopResultBuilder]: For program point L557(lines 557 880) no Hoare annotation was computed. [2021-12-17 04:45:13,704 INFO L858 garLoopResultBuilder]: For program point L227(lines 227 880) no Hoare annotation was computed. [2021-12-17 04:45:13,704 INFO L858 garLoopResultBuilder]: For program point L161(line 161) no Hoare annotation was computed. [2021-12-17 04:45:13,704 INFO L858 garLoopResultBuilder]: For program point L95(line 95) no Hoare annotation was computed. [2021-12-17 04:45:13,704 INFO L858 garLoopResultBuilder]: For program point L757(lines 757 880) no Hoare annotation was computed. [2021-12-17 04:45:13,704 INFO L858 garLoopResultBuilder]: For program point L625(lines 625 880) no Hoare annotation was computed. [2021-12-17 04:45:13,704 INFO L858 garLoopResultBuilder]: For program point L163-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:13,704 INFO L858 garLoopResultBuilder]: For program point L97-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:13,704 INFO L858 garLoopResultBuilder]: For program point L31(lines 31 33) no Hoare annotation was computed. [2021-12-17 04:45:13,704 INFO L858 garLoopResultBuilder]: For program point L31-2(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:13,704 INFO L858 garLoopResultBuilder]: For program point L824(lines 824 880) no Hoare annotation was computed. [2021-12-17 04:45:13,704 INFO L854 garLoopResultBuilder]: At program point L890-2(lines 890 899) the Hoare annotation is: (let ((.cse17 (<= 7 ~a15~0)) (.cse18 (< 80 ~a12~0)) (.cse15 (<= ~a12~0 11)) (.cse3 (< 11 ~a12~0)) (.cse1 (= ~a24~0 1)) (.cse2 (<= ~a15~0 8)) (.cse20 (<= (+ ~a12~0 43) 0))) (let ((.cse8 (let ((.cse21 (<= ~a15~0 5))) (or (and .cse21 .cse1) (and .cse21 .cse2 .cse20)))) (.cse10 (<= 8 ~a21~0)) (.cse11 (<= ~a21~0 8)) (.cse5 (<= ~a12~0 10)) (.cse9 (<= 8 ~a15~0)) (.cse12 (or (not (= 9 ~a15~0)) (and (or .cse18 .cse15) (or .cse3 .cse20)))) (.cse16 (<= ~a12~0 80)) (.cse13 (<= 12849 ~a12~0)) (.cse19 (<= 9 ~a21~0)) (.cse0 (<= ~a21~0 6)) (.cse4 (not (= 5 ~a15~0))) (.cse14 (<= 10 ~a21~0)) (.cse6 (or (and .cse2 (not (= ~a21~0 6))) (and .cse17 .cse2))) (.cse7 (<= ~a12~0 600060))) (or (and (<= ~a12~0 73282) .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse0 .cse1 .cse5 .cse6 .cse7) (and .cse1 .cse8) (and .cse9 .cse1 .cse10 .cse7 .cse11 .cse12) (and .cse4 .cse0 .cse1 .cse13 .cse6 .cse7) (and .cse9 .cse3 .cse1 .cse7 (<= 7 ~a21~0) .cse12 (<= ~a21~0 7)) (and .cse14 .cse1 .cse15) (and .cse1 .cse10 (<= ~a12~0 76) .cse11) (and .cse9 (< 11 (div (+ (* (div (+ (* ~a12~0 10) 2779120) 9) (- 1)) 437300) 10)) .cse1 .cse13 .cse12) (and .cse1 .cse2 .cse16 .cse10 .cse11) (and .cse0 .cse8) (and .cse1 .cse10 .cse13 .cse7 .cse11) (and .cse17 .cse1 .cse2 .cse5) (and .cse9 .cse1 .cse18 .cse7 .cse12 .cse19) (and .cse4 .cse1 (<= ~a21~0 9) .cse16 .cse6 .cse19) (and .cse4 .cse1 .cse13 .cse6 .cse7 .cse19) (and .cse0 .cse1 .cse2 .cse20) (and .cse4 .cse14 .cse1 .cse18 .cse6 .cse7)))) [2021-12-17 04:45:13,704 INFO L858 garLoopResultBuilder]: For program point L494(lines 494 880) no Hoare annotation was computed. [2021-12-17 04:45:13,704 INFO L858 garLoopResultBuilder]: For program point L296(lines 296 880) no Hoare annotation was computed. [2021-12-17 04:45:13,704 INFO L858 garLoopResultBuilder]: For program point L164(line 164) no Hoare annotation was computed. [2021-12-17 04:45:13,704 INFO L858 garLoopResultBuilder]: For program point L98(line 98) no Hoare annotation was computed. [2021-12-17 04:45:13,704 INFO L858 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2021-12-17 04:45:13,705 INFO L858 garLoopResultBuilder]: For program point L693(lines 693 880) no Hoare annotation was computed. [2021-12-17 04:45:13,705 INFO L858 garLoopResultBuilder]: For program point L363(lines 363 880) no Hoare annotation was computed. [2021-12-17 04:45:13,705 INFO L858 garLoopResultBuilder]: For program point L562(lines 562 880) no Hoare annotation was computed. [2021-12-17 04:45:13,705 INFO L858 garLoopResultBuilder]: For program point L430(lines 430 880) no Hoare annotation was computed. [2021-12-17 04:45:13,705 INFO L858 garLoopResultBuilder]: For program point L166-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:13,705 INFO L858 garLoopResultBuilder]: For program point L100-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:13,705 INFO L858 garLoopResultBuilder]: For program point L34-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:13,705 INFO L858 garLoopResultBuilder]: For program point L233(lines 233 880) no Hoare annotation was computed. [2021-12-17 04:45:13,705 INFO L858 garLoopResultBuilder]: For program point L167(line 167) no Hoare annotation was computed. [2021-12-17 04:45:13,705 INFO L858 garLoopResultBuilder]: For program point L101(line 101) no Hoare annotation was computed. [2021-12-17 04:45:13,705 INFO L858 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2021-12-17 04:45:13,708 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 04:45:13,709 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-17 04:45:13,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.12 04:45:13 BoogieIcfgContainer [2021-12-17 04:45:13,738 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-17 04:45:13,739 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-17 04:45:13,739 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-17 04:45:13,739 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-17 04:45:13,739 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 04:44:23" (3/4) ... [2021-12-17 04:45:13,741 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-17 04:45:13,763 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-12-17 04:45:13,767 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-17 04:45:13,768 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-17 04:45:13,768 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-17 04:45:13,872 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-17 04:45:13,872 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-17 04:45:13,872 INFO L158 Benchmark]: Toolchain (without parser) took 51965.32ms. Allocated memory was 107.0MB in the beginning and 559.9MB in the end (delta: 453.0MB). Free memory was 85.7MB in the beginning and 484.3MB in the end (delta: -398.6MB). Peak memory consumption was 371.0MB. Max. memory is 16.1GB. [2021-12-17 04:45:13,873 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 77.6MB. Free memory is still 52.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-17 04:45:13,875 INFO L158 Benchmark]: CACSL2BoogieTranslator took 430.83ms. Allocated memory is still 107.0MB. Free memory was 85.5MB in the beginning and 55.4MB in the end (delta: 30.1MB). Peak memory consumption was 31.6MB. Max. memory is 16.1GB. [2021-12-17 04:45:13,876 INFO L158 Benchmark]: Boogie Procedure Inliner took 84.24ms. Allocated memory is still 107.0MB. Free memory was 55.2MB in the beginning and 79.6MB in the end (delta: -24.4MB). Peak memory consumption was 16.4MB. Max. memory is 16.1GB. [2021-12-17 04:45:13,876 INFO L158 Benchmark]: Boogie Preprocessor took 73.75ms. Allocated memory is still 107.0MB. Free memory was 79.6MB in the beginning and 73.9MB in the end (delta: 5.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-17 04:45:13,876 INFO L158 Benchmark]: RCFGBuilder took 795.07ms. Allocated memory was 107.0MB in the beginning and 144.7MB in the end (delta: 37.7MB). Free memory was 73.3MB in the beginning and 79.7MB in the end (delta: -6.4MB). Peak memory consumption was 30.7MB. Max. memory is 16.1GB. [2021-12-17 04:45:13,877 INFO L158 Benchmark]: TraceAbstraction took 50441.58ms. Allocated memory was 144.7MB in the beginning and 559.9MB in the end (delta: 415.2MB). Free memory was 79.7MB in the beginning and 176.4MB in the end (delta: -96.7MB). Peak memory consumption was 332.3MB. Max. memory is 16.1GB. [2021-12-17 04:45:13,878 INFO L158 Benchmark]: Witness Printer took 133.31ms. Allocated memory is still 559.9MB. Free memory was 176.4MB in the beginning and 484.3MB in the end (delta: -307.9MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. [2021-12-17 04:45:13,883 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 77.6MB. Free memory is still 52.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 430.83ms. Allocated memory is still 107.0MB. Free memory was 85.5MB in the beginning and 55.4MB in the end (delta: 30.1MB). Peak memory consumption was 31.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 84.24ms. Allocated memory is still 107.0MB. Free memory was 55.2MB in the beginning and 79.6MB in the end (delta: -24.4MB). Peak memory consumption was 16.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 73.75ms. Allocated memory is still 107.0MB. Free memory was 79.6MB in the beginning and 73.9MB in the end (delta: 5.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 795.07ms. Allocated memory was 107.0MB in the beginning and 144.7MB in the end (delta: 37.7MB). Free memory was 73.3MB in the beginning and 79.7MB in the end (delta: -6.4MB). Peak memory consumption was 30.7MB. Max. memory is 16.1GB. * TraceAbstraction took 50441.58ms. Allocated memory was 144.7MB in the beginning and 559.9MB in the end (delta: 415.2MB). Free memory was 79.7MB in the beginning and 176.4MB in the end (delta: -96.7MB). Peak memory consumption was 332.3MB. Max. memory is 16.1GB. * Witness Printer took 133.31ms. Allocated memory is still 559.9MB. Free memory was 176.4MB in the beginning and 484.3MB in the end (delta: -307.9MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 137]: 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: 50.4s, OverallIterations: 21, TraceHistogramMax: 12, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 12.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.9s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4235 SdHoareTripleChecker+Valid, 11.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4235 mSDsluCounter, 2437 SdHoareTripleChecker+Invalid, 8.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 216 mSDsCounter, 1499 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 16868 IncrementalHoareTripleChecker+Invalid, 18367 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1499 mSolverCounterUnsat, 2221 mSDtfsCounter, 16868 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 13893 GetRequests, 13805 SyntacticMatches, 2 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5522occurred in iteration=19, InterpolantAutomatonStates: 93, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 21 MinimizatonAttempts, 6103 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 100 NumberOfFragments, 955 HoareAnnotationTreeSize, 3 FomulaSimplifications, 5278 FormulaSimplificationTreeSizeReduction, 0.9s HoareSimplificationTime, 3 FomulaSimplificationsInter, 30736 FormulaSimplificationTreeSizeReductionInter, 2.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 2.1s SatisfiabilityAnalysisTime, 27.9s InterpolantComputationTime, 25097 NumberOfCodeBlocks, 25097 NumberOfCodeBlocksAsserted, 33 NumberOfCheckSat, 29183 ConstructedInterpolants, 0 QuantifiedInterpolants, 94808 SizeOfPredicates, 5 NumberOfNonLiveVariables, 12151 ConjunctsInSsa, 42 ConjunctsInUnsatCore, 37 InterpolantComputations, 18 PerfectInterpolantSequences, 82788/85756 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: ((((((((((((((((((((a12 <= 73282 && a21 <= 6) && a24 == 1) && a15 <= 8) && 11 < a12) || (((((!(5 == a15) && a21 <= 6) && a24 == 1) && a12 <= 10) && ((a15 <= 8 && !(a21 == 6)) || (7 <= a15 && a15 <= 8))) && a12 <= 600060)) || (a24 == 1 && ((a15 <= 5 && a24 == 1) || ((a15 <= 5 && a15 <= 8) && a12 + 43 <= 0)))) || (((((8 <= a15 && a24 == 1) && 8 <= a21) && a12 <= 600060) && a21 <= 8) && (!(9 == a15) || ((80 < a12 || a12 <= 11) && (11 < a12 || a12 + 43 <= 0))))) || (((((!(5 == a15) && a21 <= 6) && a24 == 1) && 12849 <= a12) && ((a15 <= 8 && !(a21 == 6)) || (7 <= a15 && a15 <= 8))) && a12 <= 600060)) || ((((((8 <= a15 && 11 < a12) && a24 == 1) && a12 <= 600060) && 7 <= a21) && (!(9 == a15) || ((80 < a12 || a12 <= 11) && (11 < a12 || a12 + 43 <= 0)))) && a21 <= 7)) || ((10 <= a21 && a24 == 1) && a12 <= 11)) || (((a24 == 1 && 8 <= a21) && a12 <= 76) && a21 <= 8)) || ((((8 <= a15 && 11 < ((a12 * 10 + 2779120) / 9 * -1 + 437300) / 10) && a24 == 1) && 12849 <= a12) && (!(9 == a15) || ((80 < a12 || a12 <= 11) && (11 < a12 || a12 + 43 <= 0))))) || ((((a24 == 1 && a15 <= 8) && a12 <= 80) && 8 <= a21) && a21 <= 8)) || (a21 <= 6 && ((a15 <= 5 && a24 == 1) || ((a15 <= 5 && a15 <= 8) && a12 + 43 <= 0)))) || ((((a24 == 1 && 8 <= a21) && 12849 <= a12) && a12 <= 600060) && a21 <= 8)) || (((7 <= a15 && a24 == 1) && a15 <= 8) && a12 <= 10)) || (((((8 <= a15 && a24 == 1) && 80 < a12) && a12 <= 600060) && (!(9 == a15) || ((80 < a12 || a12 <= 11) && (11 < a12 || a12 + 43 <= 0)))) && 9 <= a21)) || (((((!(5 == a15) && a24 == 1) && a21 <= 9) && a12 <= 80) && ((a15 <= 8 && !(a21 == 6)) || (7 <= a15 && a15 <= 8))) && 9 <= a21)) || (((((!(5 == a15) && a24 == 1) && 12849 <= a12) && ((a15 <= 8 && !(a21 == 6)) || (7 <= a15 && a15 <= 8))) && a12 <= 600060) && 9 <= a21)) || (((a21 <= 6 && a24 == 1) && a15 <= 8) && a12 + 43 <= 0)) || (((((!(5 == a15) && 10 <= a21) && a24 == 1) && 80 < a12) && ((a15 <= 8 && !(a21 == 6)) || (7 <= a15 && a15 <= 8))) && a12 <= 600060) - InvariantResult [Line: 884]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 890]: Loop Invariant Derived loop invariant: ((((((((((((((((((((a12 <= 73282 && a21 <= 6) && a24 == 1) && a15 <= 8) && 11 < a12) || (((((!(5 == a15) && a21 <= 6) && a24 == 1) && a12 <= 10) && ((a15 <= 8 && !(a21 == 6)) || (7 <= a15 && a15 <= 8))) && a12 <= 600060)) || (a24 == 1 && ((a15 <= 5 && a24 == 1) || ((a15 <= 5 && a15 <= 8) && a12 + 43 <= 0)))) || (((((8 <= a15 && a24 == 1) && 8 <= a21) && a12 <= 600060) && a21 <= 8) && (!(9 == a15) || ((80 < a12 || a12 <= 11) && (11 < a12 || a12 + 43 <= 0))))) || (((((!(5 == a15) && a21 <= 6) && a24 == 1) && 12849 <= a12) && ((a15 <= 8 && !(a21 == 6)) || (7 <= a15 && a15 <= 8))) && a12 <= 600060)) || ((((((8 <= a15 && 11 < a12) && a24 == 1) && a12 <= 600060) && 7 <= a21) && (!(9 == a15) || ((80 < a12 || a12 <= 11) && (11 < a12 || a12 + 43 <= 0)))) && a21 <= 7)) || ((10 <= a21 && a24 == 1) && a12 <= 11)) || (((a24 == 1 && 8 <= a21) && a12 <= 76) && a21 <= 8)) || ((((8 <= a15 && 11 < ((a12 * 10 + 2779120) / 9 * -1 + 437300) / 10) && a24 == 1) && 12849 <= a12) && (!(9 == a15) || ((80 < a12 || a12 <= 11) && (11 < a12 || a12 + 43 <= 0))))) || ((((a24 == 1 && a15 <= 8) && a12 <= 80) && 8 <= a21) && a21 <= 8)) || (a21 <= 6 && ((a15 <= 5 && a24 == 1) || ((a15 <= 5 && a15 <= 8) && a12 + 43 <= 0)))) || ((((a24 == 1 && 8 <= a21) && 12849 <= a12) && a12 <= 600060) && a21 <= 8)) || (((7 <= a15 && a24 == 1) && a15 <= 8) && a12 <= 10)) || (((((8 <= a15 && a24 == 1) && 80 < a12) && a12 <= 600060) && (!(9 == a15) || ((80 < a12 || a12 <= 11) && (11 < a12 || a12 + 43 <= 0)))) && 9 <= a21)) || (((((!(5 == a15) && a24 == 1) && a21 <= 9) && a12 <= 80) && ((a15 <= 8 && !(a21 == 6)) || (7 <= a15 && a15 <= 8))) && 9 <= a21)) || (((((!(5 == a15) && a24 == 1) && 12849 <= a12) && ((a15 <= 8 && !(a21 == 6)) || (7 <= a15 && a15 <= 8))) && a12 <= 600060) && 9 <= a21)) || (((a21 <= 6 && a24 == 1) && a15 <= 8) && a12 + 43 <= 0)) || (((((!(5 == a15) && 10 <= a21) && a24 == 1) && 80 < a12) && ((a15 <= 8 && !(a21 == 6)) || (7 <= a15 && a15 <= 8))) && a12 <= 600060) RESULT: Ultimate proved your program to be correct! [2021-12-17 04:45:13,903 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