./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem01_label19.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3a877d22 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem01_label19.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 e9fc1c4ac9b5c9b782fe33ece5b0fcbdb6337af474d3fecce508816632ae710b --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 09:01:43,573 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 09:01:43,575 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 09:01:43,607 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 09:01:43,608 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 09:01:43,612 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 09:01:43,614 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 09:01:43,619 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 09:01:43,621 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 09:01:43,627 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 09:01:43,628 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 09:01:43,628 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 09:01:43,630 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 09:01:43,632 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 09:01:43,633 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 09:01:43,635 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 09:01:43,637 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 09:01:43,637 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 09:01:43,639 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 09:01:43,643 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 09:01:43,648 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 09:01:43,649 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 09:01:43,650 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 09:01:43,651 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 09:01:43,653 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 09:01:43,655 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 09:01:43,655 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 09:01:43,657 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 09:01:43,657 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 09:01:43,658 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 09:01:43,658 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 09:01:43,659 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 09:01:43,661 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 09:01:43,662 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 09:01:43,663 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 09:01:43,663 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 09:01:43,664 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 09:01:43,664 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 09:01:43,664 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 09:01:43,665 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 09:01:43,665 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 09:01:43,667 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 09:01:43,699 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 09:01:43,702 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 09:01:43,703 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 09:01:43,703 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 09:01:43,704 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 09:01:43,704 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 09:01:43,705 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 09:01:43,705 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 09:01:43,705 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 09:01:43,705 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 09:01:43,706 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 09:01:43,706 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 09:01:43,706 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 09:01:43,706 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 09:01:43,707 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 09:01:43,707 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 09:01:43,707 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 09:01:43,707 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 09:01:43,707 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 09:01:43,708 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 09:01:43,708 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 09:01:43,708 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 09:01:43,708 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 09:01:43,708 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 09:01:43,708 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 09:01:43,709 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 09:01:43,709 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 09:01:43,709 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 09:01:43,709 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 09:01:43,709 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 09:01:43,710 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 09:01:43,710 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 09:01:43,710 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 09:01:43,710 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 09:01:43,710 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e9fc1c4ac9b5c9b782fe33ece5b0fcbdb6337af474d3fecce508816632ae710b [2021-12-15 09:01:43,982 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 09:01:44,017 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 09:01:44,019 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 09:01:44,020 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 09:01:44,021 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 09:01:44,022 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem01_label19.c [2021-12-15 09:01:44,078 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b76b17f4a/367ec455ad0f4f34950842da86edb0b3/FLAGbe72b874d [2021-12-15 09:01:44,621 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 09:01:44,622 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem01_label19.c [2021-12-15 09:01:44,641 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b76b17f4a/367ec455ad0f4f34950842da86edb0b3/FLAGbe72b874d [2021-12-15 09:01:44,925 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b76b17f4a/367ec455ad0f4f34950842da86edb0b3 [2021-12-15 09:01:44,928 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 09:01:44,931 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 09:01:44,933 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 09:01:44,934 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 09:01:44,936 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 09:01:44,937 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 09:01:44" (1/1) ... [2021-12-15 09:01:44,938 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49c429f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:01:44, skipping insertion in model container [2021-12-15 09:01:44,938 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 09:01:44" (1/1) ... [2021-12-15 09:01:44,944 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 09:01:44,975 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 09:01:45,216 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem01_label19.c[16251,16264] [2021-12-15 09:01:45,247 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 09:01:45,254 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 09:01:45,312 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem01_label19.c[16251,16264] [2021-12-15 09:01:45,340 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 09:01:45,354 INFO L208 MainTranslator]: Completed translation [2021-12-15 09:01:45,355 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:01:45 WrapperNode [2021-12-15 09:01:45,355 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 09:01:45,356 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 09:01:45,356 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 09:01:45,356 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 09:01:45,364 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:01:45" (1/1) ... [2021-12-15 09:01:45,379 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:01:45" (1/1) ... [2021-12-15 09:01:45,441 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 657 [2021-12-15 09:01:45,441 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 09:01:45,442 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 09:01:45,442 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 09:01:45,442 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 09:01:45,449 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:01:45" (1/1) ... [2021-12-15 09:01:45,449 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:01:45" (1/1) ... [2021-12-15 09:01:45,453 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:01:45" (1/1) ... [2021-12-15 09:01:45,453 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:01:45" (1/1) ... [2021-12-15 09:01:45,472 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:01:45" (1/1) ... [2021-12-15 09:01:45,479 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:01:45" (1/1) ... [2021-12-15 09:01:45,485 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:01:45" (1/1) ... [2021-12-15 09:01:45,492 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 09:01:45,493 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 09:01:45,493 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 09:01:45,494 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 09:01:45,494 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:01:45" (1/1) ... [2021-12-15 09:01:45,501 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 09:01:45,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 09:01:45,549 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-15 09:01:45,575 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-15 09:01:45,589 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 09:01:45,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 09:01:45,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 09:01:45,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 09:01:45,684 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 09:01:45,698 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 09:01:46,454 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 09:01:46,467 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 09:01:46,467 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-15 09:01:46,470 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 09:01:46 BoogieIcfgContainer [2021-12-15 09:01:46,470 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 09:01:46,471 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 09:01:46,472 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 09:01:46,475 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 09:01:46,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 09:01:44" (1/3) ... [2021-12-15 09:01:46,476 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18d12089 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 09:01:46, skipping insertion in model container [2021-12-15 09:01:46,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:01:45" (2/3) ... [2021-12-15 09:01:46,476 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18d12089 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 09:01:46, skipping insertion in model container [2021-12-15 09:01:46,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 09:01:46" (3/3) ... [2021-12-15 09:01:46,477 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label19.c [2021-12-15 09:01:46,481 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 09:01:46,481 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 09:01:46,517 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 09:01:46,522 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-15 09:01:46,523 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 09:01:46,539 INFO L276 IsEmpty]: Start isEmpty. Operand has 198 states, 196 states have (on average 1.6683673469387754) internal successors, (327), 197 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:01:46,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-12-15 09:01:46,547 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:01:46,548 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 09:01:46,549 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:01:46,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:01:46,553 INFO L85 PathProgramCache]: Analyzing trace with hash 1118209127, now seen corresponding path program 1 times [2021-12-15 09:01:46,561 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:01:46,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081994437] [2021-12-15 09:01:46,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:01:46,563 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:01:46,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:01:46,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 09:01:46,928 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:01:46,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081994437] [2021-12-15 09:01:46,929 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081994437] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:01:46,929 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 09:01:46,929 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 09:01:46,931 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469633174] [2021-12-15 09:01:46,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:01:46,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 09:01:46,940 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:01:46,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 09:01:46,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:01:46,973 INFO L87 Difference]: Start difference. First operand has 198 states, 196 states have (on average 1.6683673469387754) internal successors, (327), 197 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 2 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:01:47,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:01:47,558 INFO L93 Difference]: Finished difference Result 553 states and 940 transitions. [2021-12-15 09:01:47,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 09:01:47,560 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 2 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2021-12-15 09:01:47,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:01:47,570 INFO L225 Difference]: With dead ends: 553 [2021-12-15 09:01:47,571 INFO L226 Difference]: Without dead ends: 266 [2021-12-15 09:01:47,574 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:01:47,577 INFO L933 BasicCegarLoop]: 64 mSDtfsCounter, 99 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 442 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-15 09:01:47,578 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 72 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 442 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-15 09:01:47,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2021-12-15 09:01:47,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2021-12-15 09:01:47,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 265 states have (on average 1.4339622641509433) internal successors, (380), 265 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:01:47,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 380 transitions. [2021-12-15 09:01:47,623 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 380 transitions. Word has length 86 [2021-12-15 09:01:47,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:01:47,624 INFO L470 AbstractCegarLoop]: Abstraction has 266 states and 380 transitions. [2021-12-15 09:01:47,624 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 2 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:01:47,624 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 380 transitions. [2021-12-15 09:01:47,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-12-15 09:01:47,627 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:01:47,627 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 09:01:47,628 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 09:01:47,628 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:01:47,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:01:47,629 INFO L85 PathProgramCache]: Analyzing trace with hash 209740218, now seen corresponding path program 1 times [2021-12-15 09:01:47,629 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:01:47,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948202759] [2021-12-15 09:01:47,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:01:47,630 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:01:47,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:01:47,672 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 09:01:47,673 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:01:47,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948202759] [2021-12-15 09:01:47,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948202759] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:01:47,673 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 09:01:47,673 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 09:01:47,674 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385810605] [2021-12-15 09:01:47,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:01:47,675 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 09:01:47,675 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:01:47,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 09:01:47,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:01:47,676 INFO L87 Difference]: Start difference. First operand 266 states and 380 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 2 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:01:48,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:01:48,088 INFO L93 Difference]: Finished difference Result 792 states and 1135 transitions. [2021-12-15 09:01:48,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 09:01:48,088 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 2 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2021-12-15 09:01:48,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:01:48,091 INFO L225 Difference]: With dead ends: 792 [2021-12-15 09:01:48,091 INFO L226 Difference]: Without dead ends: 528 [2021-12-15 09:01:48,092 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:01:48,093 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 143 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-15 09:01:48,094 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 19 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-15 09:01:48,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2021-12-15 09:01:48,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 528. [2021-12-15 09:01:48,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 527 states have (on average 1.411764705882353) internal successors, (744), 527 states have internal predecessors, (744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:01:48,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 744 transitions. [2021-12-15 09:01:48,114 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 744 transitions. Word has length 92 [2021-12-15 09:01:48,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:01:48,115 INFO L470 AbstractCegarLoop]: Abstraction has 528 states and 744 transitions. [2021-12-15 09:01:48,115 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 2 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:01:48,115 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 744 transitions. [2021-12-15 09:01:48,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-12-15 09:01:48,119 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:01:48,119 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 09:01:48,120 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-15 09:01:48,120 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:01:48,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:01:48,121 INFO L85 PathProgramCache]: Analyzing trace with hash -907334157, now seen corresponding path program 1 times [2021-12-15 09:01:48,121 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:01:48,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080806208] [2021-12-15 09:01:48,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:01:48,121 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:01:48,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:01:48,171 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 09:01:48,171 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:01:48,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080806208] [2021-12-15 09:01:48,172 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080806208] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:01:48,172 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 09:01:48,172 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 09:01:48,173 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716746290] [2021-12-15 09:01:48,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:01:48,173 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 09:01:48,173 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:01:48,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 09:01:48,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:01:48,174 INFO L87 Difference]: Start difference. First operand 528 states and 744 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:01:48,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:01:48,570 INFO L93 Difference]: Finished difference Result 1054 states and 1486 transitions. [2021-12-15 09:01:48,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 09:01:48,571 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 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 108 [2021-12-15 09:01:48,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:01:48,573 INFO L225 Difference]: With dead ends: 1054 [2021-12-15 09:01:48,573 INFO L226 Difference]: Without dead ends: 528 [2021-12-15 09:01:48,575 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:01:48,576 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 128 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-15 09:01:48,577 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 191 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-15 09:01:48,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2021-12-15 09:01:48,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 528. [2021-12-15 09:01:48,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 527 states have (on average 1.2637571157495255) internal successors, (666), 527 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:01:48,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 666 transitions. [2021-12-15 09:01:48,595 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 666 transitions. Word has length 108 [2021-12-15 09:01:48,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:01:48,596 INFO L470 AbstractCegarLoop]: Abstraction has 528 states and 666 transitions. [2021-12-15 09:01:48,596 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:01:48,596 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 666 transitions. [2021-12-15 09:01:48,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-12-15 09:01:48,601 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:01:48,601 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 09:01:48,601 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-15 09:01:48,602 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:01:48,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:01:48,602 INFO L85 PathProgramCache]: Analyzing trace with hash -391670679, now seen corresponding path program 1 times [2021-12-15 09:01:48,603 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:01:48,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129615457] [2021-12-15 09:01:48,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:01:48,603 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:01:48,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:01:48,676 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-12-15 09:01:48,676 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:01:48,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129615457] [2021-12-15 09:01:48,677 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129615457] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:01:48,677 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 09:01:48,677 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 09:01:48,677 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062382314] [2021-12-15 09:01:48,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:01:48,678 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 09:01:48,678 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:01:48,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 09:01:48,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:01:48,679 INFO L87 Difference]: Start difference. First operand 528 states and 666 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 2 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:01:49,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:01:49,053 INFO L93 Difference]: Finished difference Result 1447 states and 1837 transitions. [2021-12-15 09:01:49,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 09:01:49,054 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 2 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2021-12-15 09:01:49,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:01:49,057 INFO L225 Difference]: With dead ends: 1447 [2021-12-15 09:01:49,057 INFO L226 Difference]: Without dead ends: 921 [2021-12-15 09:01:49,058 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:01:49,060 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 116 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-15 09:01:49,060 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 56 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-15 09:01:49,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2021-12-15 09:01:49,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 790. [2021-12-15 09:01:49,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 790 states, 789 states have (on average 1.214195183776933) internal successors, (958), 789 states have internal predecessors, (958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:01:49,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 958 transitions. [2021-12-15 09:01:49,078 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 958 transitions. Word has length 112 [2021-12-15 09:01:49,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:01:49,079 INFO L470 AbstractCegarLoop]: Abstraction has 790 states and 958 transitions. [2021-12-15 09:01:49,079 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 2 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:01:49,079 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 958 transitions. [2021-12-15 09:01:49,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-12-15 09:01:49,085 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:01:49,085 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 09:01:49,085 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-15 09:01:49,086 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:01:49,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:01:49,086 INFO L85 PathProgramCache]: Analyzing trace with hash 496677199, now seen corresponding path program 1 times [2021-12-15 09:01:49,087 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:01:49,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930124993] [2021-12-15 09:01:49,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:01:49,087 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:01:49,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:01:49,148 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-12-15 09:01:49,148 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:01:49,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930124993] [2021-12-15 09:01:49,149 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930124993] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:01:49,149 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 09:01:49,149 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 09:01:49,149 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003957271] [2021-12-15 09:01:49,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:01:49,150 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 09:01:49,150 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:01:49,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 09:01:49,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:01:49,151 INFO L87 Difference]: Start difference. First operand 790 states and 958 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:01:49,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:01:49,519 INFO L93 Difference]: Finished difference Result 2102 states and 2534 transitions. [2021-12-15 09:01:49,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 09:01:49,520 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 128 [2021-12-15 09:01:49,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:01:49,527 INFO L225 Difference]: With dead ends: 2102 [2021-12-15 09:01:49,527 INFO L226 Difference]: Without dead ends: 1314 [2021-12-15 09:01:49,528 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:01:49,529 INFO L933 BasicCegarLoop]: 199 mSDtfsCounter, 116 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-15 09:01:49,529 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 205 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-15 09:01:49,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1314 states. [2021-12-15 09:01:49,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1314 to 1314. [2021-12-15 09:01:49,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1314 states, 1313 states have (on average 1.1744097486671745) internal successors, (1542), 1313 states have internal predecessors, (1542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:01:49,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1314 states to 1314 states and 1542 transitions. [2021-12-15 09:01:49,556 INFO L78 Accepts]: Start accepts. Automaton has 1314 states and 1542 transitions. Word has length 128 [2021-12-15 09:01:49,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:01:49,556 INFO L470 AbstractCegarLoop]: Abstraction has 1314 states and 1542 transitions. [2021-12-15 09:01:49,556 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:01:49,556 INFO L276 IsEmpty]: Start isEmpty. Operand 1314 states and 1542 transitions. [2021-12-15 09:01:49,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2021-12-15 09:01:49,559 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:01:49,560 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 09:01:49,560 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-15 09:01:49,560 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:01:49,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:01:49,561 INFO L85 PathProgramCache]: Analyzing trace with hash 107227289, now seen corresponding path program 1 times [2021-12-15 09:01:49,561 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:01:49,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379930582] [2021-12-15 09:01:49,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:01:49,562 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:01:49,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:01:49,610 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2021-12-15 09:01:49,611 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:01:49,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379930582] [2021-12-15 09:01:49,611 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379930582] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:01:49,611 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 09:01:49,612 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 09:01:49,612 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356670025] [2021-12-15 09:01:49,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:01:49,612 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 09:01:49,613 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:01:49,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 09:01:49,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:01:49,613 INFO L87 Difference]: Start difference. First operand 1314 states and 1542 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:01:49,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:01:49,974 INFO L93 Difference]: Finished difference Result 3150 states and 3732 transitions. [2021-12-15 09:01:49,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 09:01:49,975 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 132 [2021-12-15 09:01:49,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:01:49,980 INFO L225 Difference]: With dead ends: 3150 [2021-12-15 09:01:49,980 INFO L226 Difference]: Without dead ends: 1576 [2021-12-15 09:01:49,982 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:01:49,984 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 132 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-15 09:01:49,984 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 60 Invalid, 378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-15 09:01:49,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1576 states. [2021-12-15 09:01:50,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1576 to 1576. [2021-12-15 09:01:50,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1575 states have (on average 1.1168253968253967) internal successors, (1759), 1575 states have internal predecessors, (1759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:01:50,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 1759 transitions. [2021-12-15 09:01:50,013 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 1759 transitions. Word has length 132 [2021-12-15 09:01:50,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:01:50,013 INFO L470 AbstractCegarLoop]: Abstraction has 1576 states and 1759 transitions. [2021-12-15 09:01:50,014 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:01:50,014 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 1759 transitions. [2021-12-15 09:01:50,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2021-12-15 09:01:50,017 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:01:50,017 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 09:01:50,018 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-15 09:01:50,018 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:01:50,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:01:50,019 INFO L85 PathProgramCache]: Analyzing trace with hash -266210464, now seen corresponding path program 1 times [2021-12-15 09:01:50,019 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:01:50,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427105824] [2021-12-15 09:01:50,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:01:50,019 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:01:50,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:01:50,075 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2021-12-15 09:01:50,075 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:01:50,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427105824] [2021-12-15 09:01:50,075 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427105824] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:01:50,076 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 09:01:50,076 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-15 09:01:50,076 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736400147] [2021-12-15 09:01:50,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:01:50,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-15 09:01:50,077 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:01:50,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-15 09:01:50,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-15 09:01:50,077 INFO L87 Difference]: Start difference. First operand 1576 states and 1759 transitions. Second operand has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:01:50,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:01:50,558 INFO L93 Difference]: Finished difference Result 3543 states and 3976 transitions. [2021-12-15 09:01:50,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-15 09:01:50,559 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 0 states have call successors, (0), 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 151 [2021-12-15 09:01:50,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:01:50,565 INFO L225 Difference]: With dead ends: 3543 [2021-12-15 09:01:50,565 INFO L226 Difference]: Without dead ends: 1969 [2021-12-15 09:01:50,567 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-15 09:01:50,568 INFO L933 BasicCegarLoop]: 26 mSDtfsCounter, 257 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-15 09:01:50,569 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [257 Valid, 36 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 463 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-15 09:01:50,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1969 states. [2021-12-15 09:01:50,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1969 to 1838. [2021-12-15 09:01:50,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1838 states, 1837 states have (on average 1.1072400653238976) internal successors, (2034), 1837 states have internal predecessors, (2034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:01:50,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1838 states to 1838 states and 2034 transitions. [2021-12-15 09:01:50,600 INFO L78 Accepts]: Start accepts. Automaton has 1838 states and 2034 transitions. Word has length 151 [2021-12-15 09:01:50,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:01:50,600 INFO L470 AbstractCegarLoop]: Abstraction has 1838 states and 2034 transitions. [2021-12-15 09:01:50,600 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:01:50,600 INFO L276 IsEmpty]: Start isEmpty. Operand 1838 states and 2034 transitions. [2021-12-15 09:01:50,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2021-12-15 09:01:50,604 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:01:50,604 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 09:01:50,605 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-15 09:01:50,605 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:01:50,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:01:50,606 INFO L85 PathProgramCache]: Analyzing trace with hash -2046828035, now seen corresponding path program 1 times [2021-12-15 09:01:50,606 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:01:50,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101027579] [2021-12-15 09:01:50,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:01:50,606 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:01:50,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:01:50,670 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 87 proven. 3 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-12-15 09:01:50,671 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:01:50,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101027579] [2021-12-15 09:01:50,671 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101027579] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 09:01:50,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1150865404] [2021-12-15 09:01:50,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:01:50,672 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 09:01:50,672 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 09:01:50,673 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-15 09:01:50,686 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-15 09:01:50,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:01:50,805 INFO L263 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-15 09:01:50,812 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 09:01:51,161 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2021-12-15 09:01:51,162 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 09:01:51,162 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1150865404] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:01:51,162 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-15 09:01:51,162 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-12-15 09:01:51,163 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815912462] [2021-12-15 09:01:51,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:01:51,163 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 09:01:51,163 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:01:51,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 09:01:51,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 09:01:51,164 INFO L87 Difference]: Start difference. First operand 1838 states and 2034 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:01:51,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:01:51,445 INFO L93 Difference]: Finished difference Result 4460 states and 4938 transitions. [2021-12-15 09:01:51,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 09:01:51,448 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 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 165 [2021-12-15 09:01:51,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:01:51,457 INFO L225 Difference]: With dead ends: 4460 [2021-12-15 09:01:51,457 INFO L226 Difference]: Without dead ends: 2624 [2021-12-15 09:01:51,460 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 09:01:51,463 INFO L933 BasicCegarLoop]: 25 mSDtfsCounter, 70 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-15 09:01:51,466 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 30 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-15 09:01:51,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2624 states. [2021-12-15 09:01:51,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2624 to 1969. [2021-12-15 09:01:51,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1969 states, 1968 states have (on average 1.1026422764227641) internal successors, (2170), 1968 states have internal predecessors, (2170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:01:51,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1969 states to 1969 states and 2170 transitions. [2021-12-15 09:01:51,515 INFO L78 Accepts]: Start accepts. Automaton has 1969 states and 2170 transitions. Word has length 165 [2021-12-15 09:01:51,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:01:51,517 INFO L470 AbstractCegarLoop]: Abstraction has 1969 states and 2170 transitions. [2021-12-15 09:01:51,517 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:01:51,517 INFO L276 IsEmpty]: Start isEmpty. Operand 1969 states and 2170 transitions. [2021-12-15 09:01:51,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2021-12-15 09:01:51,522 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:01:51,522 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 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, 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] [2021-12-15 09:01:51,555 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-15 09:01:51,736 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 09:01:51,736 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:01:51,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:01:51,737 INFO L85 PathProgramCache]: Analyzing trace with hash 1878157249, now seen corresponding path program 1 times [2021-12-15 09:01:51,737 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:01:51,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016938010] [2021-12-15 09:01:51,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:01:51,737 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:01:51,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:01:51,802 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 86 proven. 3 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2021-12-15 09:01:51,803 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:01:51,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016938010] [2021-12-15 09:01:51,803 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016938010] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 09:01:51,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1170447767] [2021-12-15 09:01:51,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:01:51,804 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 09:01:51,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 09:01:51,805 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-15 09:01:51,815 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-15 09:01:51,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:01:51,910 INFO L263 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-15 09:01:51,925 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 09:01:52,245 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-12-15 09:01:52,245 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 09:01:52,245 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1170447767] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:01:52,246 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-15 09:01:52,246 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-12-15 09:01:52,246 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704581993] [2021-12-15 09:01:52,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:01:52,247 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 09:01:52,247 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:01:52,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 09:01:52,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 09:01:52,259 INFO L87 Difference]: Start difference. First operand 1969 states and 2170 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:01:52,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:01:52,613 INFO L93 Difference]: Finished difference Result 4460 states and 4900 transitions. [2021-12-15 09:01:52,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 09:01:52,614 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 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 168 [2021-12-15 09:01:52,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:01:52,622 INFO L225 Difference]: With dead ends: 4460 [2021-12-15 09:01:52,622 INFO L226 Difference]: Without dead ends: 2493 [2021-12-15 09:01:52,625 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 09:01:52,626 INFO L933 BasicCegarLoop]: 25 mSDtfsCounter, 136 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-15 09:01:52,626 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 29 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-15 09:01:52,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2493 states. [2021-12-15 09:01:52,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2493 to 1838. [2021-12-15 09:01:52,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1838 states, 1837 states have (on average 1.0979858464888406) internal successors, (2017), 1837 states have internal predecessors, (2017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:01:52,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1838 states to 1838 states and 2017 transitions. [2021-12-15 09:01:52,661 INFO L78 Accepts]: Start accepts. Automaton has 1838 states and 2017 transitions. Word has length 168 [2021-12-15 09:01:52,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:01:52,662 INFO L470 AbstractCegarLoop]: Abstraction has 1838 states and 2017 transitions. [2021-12-15 09:01:52,662 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:01:52,662 INFO L276 IsEmpty]: Start isEmpty. Operand 1838 states and 2017 transitions. [2021-12-15 09:01:52,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2021-12-15 09:01:52,666 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:01:52,666 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 09:01:52,693 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-15 09:01:52,879 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-12-15 09:01:52,879 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:01:52,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:01:52,880 INFO L85 PathProgramCache]: Analyzing trace with hash 566709275, now seen corresponding path program 1 times [2021-12-15 09:01:52,880 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:01:52,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020179139] [2021-12-15 09:01:52,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:01:52,880 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:01:52,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:01:52,959 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 96 proven. 3 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2021-12-15 09:01:52,960 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:01:52,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020179139] [2021-12-15 09:01:52,960 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020179139] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 09:01:52,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [55236888] [2021-12-15 09:01:52,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:01:52,960 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 09:01:52,961 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 09:01:52,962 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-15 09:01:53,000 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-15 09:01:53,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:01:53,065 INFO L263 TraceCheckSpWp]: Trace formula consists of 397 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-15 09:01:53,068 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 09:01:53,381 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2021-12-15 09:01:53,381 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 09:01:53,381 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [55236888] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:01:53,381 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-15 09:01:53,382 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-12-15 09:01:53,383 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299234762] [2021-12-15 09:01:53,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:01:53,383 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 09:01:53,383 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:01:53,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 09:01:53,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 09:01:53,384 INFO L87 Difference]: Start difference. First operand 1838 states and 2017 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:01:53,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:01:53,671 INFO L93 Difference]: Finished difference Result 1838 states and 2017 transitions. [2021-12-15 09:01:53,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 09:01:53,672 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 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 174 [2021-12-15 09:01:53,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:01:53,672 INFO L225 Difference]: With dead ends: 1838 [2021-12-15 09:01:53,672 INFO L226 Difference]: Without dead ends: 0 [2021-12-15 09:01:53,674 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 09:01:53,675 INFO L933 BasicCegarLoop]: 164 mSDtfsCounter, 52 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-15 09:01:53,675 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 169 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-15 09:01:53,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-15 09:01:53,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-15 09:01:53,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:01:53,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-15 09:01:53,676 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 174 [2021-12-15 09:01:53,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:01:53,676 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-15 09:01:53,676 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:01:53,676 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-15 09:01:53,676 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-15 09:01:53,679 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-15 09:01:53,704 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-15 09:01:53,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 09:01:53,893 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-15 09:01:54,240 INFO L858 garLoopResultBuilder]: For program point L564(line 564) no Hoare annotation was computed. [2021-12-15 09:01:54,240 INFO L858 garLoopResultBuilder]: For program point L531(line 531) no Hoare annotation was computed. [2021-12-15 09:01:54,240 INFO L858 garLoopResultBuilder]: For program point L498(line 498) no Hoare annotation was computed. [2021-12-15 09:01:54,240 INFO L858 garLoopResultBuilder]: For program point L465(line 465) no Hoare annotation was computed. [2021-12-15 09:01:54,240 INFO L858 garLoopResultBuilder]: For program point L432(line 432) no Hoare annotation was computed. [2021-12-15 09:01:54,241 INFO L858 garLoopResultBuilder]: For program point L102(lines 102 400) no Hoare annotation was computed. [2021-12-15 09:01:54,241 INFO L858 garLoopResultBuilder]: For program point L598(line 598) no Hoare annotation was computed. [2021-12-15 09:01:54,241 INFO L858 garLoopResultBuilder]: For program point L334(lines 334 400) no Hoare annotation was computed. [2021-12-15 09:01:54,241 INFO L858 garLoopResultBuilder]: For program point L566-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 09:01:54,241 INFO L858 garLoopResultBuilder]: For program point L533-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 09:01:54,241 INFO L858 garLoopResultBuilder]: For program point L500-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 09:01:54,241 INFO L858 garLoopResultBuilder]: For program point L467-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 09:01:54,241 INFO L858 garLoopResultBuilder]: For program point L401(lines 401 403) no Hoare annotation was computed. [2021-12-15 09:01:54,241 INFO L858 garLoopResultBuilder]: For program point L434-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 09:01:54,242 INFO L858 garLoopResultBuilder]: For program point L401-2(lines 40 585) no Hoare annotation was computed. [2021-12-15 09:01:54,242 INFO L858 garLoopResultBuilder]: For program point L302(lines 302 400) no Hoare annotation was computed. [2021-12-15 09:01:54,242 INFO L858 garLoopResultBuilder]: For program point L170(lines 170 400) no Hoare annotation was computed. [2021-12-15 09:01:54,242 INFO L858 garLoopResultBuilder]: For program point L567(line 567) no Hoare annotation was computed. [2021-12-15 09:01:54,242 INFO L858 garLoopResultBuilder]: For program point L534(line 534) no Hoare annotation was computed. [2021-12-15 09:01:54,242 INFO L858 garLoopResultBuilder]: For program point L501(line 501) no Hoare annotation was computed. [2021-12-15 09:01:54,242 INFO L858 garLoopResultBuilder]: For program point L468(line 468) no Hoare annotation was computed. [2021-12-15 09:01:54,242 INFO L858 garLoopResultBuilder]: For program point L435(line 435) no Hoare annotation was computed. [2021-12-15 09:01:54,242 INFO L858 garLoopResultBuilder]: For program point L402(line 402) no Hoare annotation was computed. [2021-12-15 09:01:54,242 INFO L858 garLoopResultBuilder]: For program point L204(lines 204 400) no Hoare annotation was computed. [2021-12-15 09:01:54,242 INFO L858 garLoopResultBuilder]: For program point L72(lines 72 400) no Hoare annotation was computed. [2021-12-15 09:01:54,242 INFO L858 garLoopResultBuilder]: For program point L271(lines 271 400) no Hoare annotation was computed. [2021-12-15 09:01:54,243 INFO L858 garLoopResultBuilder]: For program point L139(lines 139 400) no Hoare annotation was computed. [2021-12-15 09:01:54,243 INFO L858 garLoopResultBuilder]: For program point L569-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 09:01:54,243 INFO L858 garLoopResultBuilder]: For program point L536-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 09:01:54,243 INFO L858 garLoopResultBuilder]: For program point L503-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 09:01:54,243 INFO L858 garLoopResultBuilder]: For program point L470-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 09:01:54,243 INFO L858 garLoopResultBuilder]: For program point L437-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 09:01:54,243 INFO L858 garLoopResultBuilder]: For program point L371(lines 371 400) no Hoare annotation was computed. [2021-12-15 09:01:54,243 INFO L858 garLoopResultBuilder]: For program point L404-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 09:01:54,243 INFO L858 garLoopResultBuilder]: For program point L107(lines 107 400) no Hoare annotation was computed. [2021-12-15 09:01:54,243 INFO L858 garLoopResultBuilder]: For program point L41(lines 41 400) no Hoare annotation was computed. [2021-12-15 09:01:54,243 INFO L858 garLoopResultBuilder]: For program point L570(line 570) no Hoare annotation was computed. [2021-12-15 09:01:54,243 INFO L858 garLoopResultBuilder]: For program point L537(line 537) no Hoare annotation was computed. [2021-12-15 09:01:54,244 INFO L858 garLoopResultBuilder]: For program point L504(line 504) no Hoare annotation was computed. [2021-12-15 09:01:54,244 INFO L858 garLoopResultBuilder]: For program point L471(line 471) no Hoare annotation was computed. [2021-12-15 09:01:54,244 INFO L858 garLoopResultBuilder]: For program point L438(line 438) no Hoare annotation was computed. [2021-12-15 09:01:54,244 INFO L858 garLoopResultBuilder]: For program point L405(line 405) no Hoare annotation was computed. [2021-12-15 09:01:54,244 INFO L858 garLoopResultBuilder]: For program point L339(lines 339 400) no Hoare annotation was computed. [2021-12-15 09:01:54,244 INFO L858 garLoopResultBuilder]: For program point L207(lines 207 400) no Hoare annotation was computed. [2021-12-15 09:01:54,244 INFO L858 garLoopResultBuilder]: For program point L75(lines 75 400) no Hoare annotation was computed. [2021-12-15 09:01:54,245 INFO L858 garLoopResultBuilder]: For program point L373(lines 373 400) no Hoare annotation was computed. [2021-12-15 09:01:54,245 INFO L858 garLoopResultBuilder]: For program point L241(lines 241 400) no Hoare annotation was computed. [2021-12-15 09:01:54,245 INFO L858 garLoopResultBuilder]: For program point L175(lines 175 400) no Hoare annotation was computed. [2021-12-15 09:01:54,245 INFO L858 garLoopResultBuilder]: For program point L572-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 09:01:54,245 INFO L858 garLoopResultBuilder]: For program point L539-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 09:01:54,245 INFO L858 garLoopResultBuilder]: For program point L506-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 09:01:54,245 INFO L858 garLoopResultBuilder]: For program point L473-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 09:01:54,245 INFO L858 garLoopResultBuilder]: For program point L440-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 09:01:54,245 INFO L858 garLoopResultBuilder]: For program point L407-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 09:01:54,246 INFO L858 garLoopResultBuilder]: For program point L275(lines 275 400) no Hoare annotation was computed. [2021-12-15 09:01:54,246 INFO L858 garLoopResultBuilder]: For program point L573(line 573) no Hoare annotation was computed. [2021-12-15 09:01:54,246 INFO L858 garLoopResultBuilder]: For program point L540(line 540) no Hoare annotation was computed. [2021-12-15 09:01:54,246 INFO L858 garLoopResultBuilder]: For program point L507(line 507) no Hoare annotation was computed. [2021-12-15 09:01:54,246 INFO L858 garLoopResultBuilder]: For program point L474(line 474) no Hoare annotation was computed. [2021-12-15 09:01:54,246 INFO L858 garLoopResultBuilder]: For program point L441(line 441) no Hoare annotation was computed. [2021-12-15 09:01:54,246 INFO L858 garLoopResultBuilder]: For program point L408(line 408) no Hoare annotation was computed. [2021-12-15 09:01:54,246 INFO L858 garLoopResultBuilder]: For program point L375(lines 375 400) no Hoare annotation was computed. [2021-12-15 09:01:54,246 INFO L858 garLoopResultBuilder]: For program point L309(lines 309 400) no Hoare annotation was computed. [2021-12-15 09:01:54,246 INFO L858 garLoopResultBuilder]: For program point L45(lines 45 400) no Hoare annotation was computed. [2021-12-15 09:01:54,246 INFO L858 garLoopResultBuilder]: For program point L343(lines 343 400) no Hoare annotation was computed. [2021-12-15 09:01:54,246 INFO L858 garLoopResultBuilder]: For program point L112(lines 112 400) no Hoare annotation was computed. [2021-12-15 09:01:54,246 INFO L858 garLoopResultBuilder]: For program point L575-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 09:01:54,246 INFO L858 garLoopResultBuilder]: For program point L542-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 09:01:54,246 INFO L858 garLoopResultBuilder]: For program point L509-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 09:01:54,246 INFO L858 garLoopResultBuilder]: For program point L476-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 09:01:54,246 INFO L858 garLoopResultBuilder]: For program point L443-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 09:01:54,246 INFO L858 garLoopResultBuilder]: For program point L410-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 09:01:54,246 INFO L858 garLoopResultBuilder]: For program point L278(lines 278 400) no Hoare annotation was computed. [2021-12-15 09:01:54,246 INFO L858 garLoopResultBuilder]: For program point L146(lines 146 400) no Hoare annotation was computed. [2021-12-15 09:01:54,246 INFO L858 garLoopResultBuilder]: For program point L576(line 576) no Hoare annotation was computed. [2021-12-15 09:01:54,247 INFO L858 garLoopResultBuilder]: For program point L543(line 543) no Hoare annotation was computed. [2021-12-15 09:01:54,247 INFO L858 garLoopResultBuilder]: For program point L510(line 510) no Hoare annotation was computed. [2021-12-15 09:01:54,247 INFO L858 garLoopResultBuilder]: For program point L477(line 477) no Hoare annotation was computed. [2021-12-15 09:01:54,247 INFO L858 garLoopResultBuilder]: For program point L444(line 444) no Hoare annotation was computed. [2021-12-15 09:01:54,247 INFO L858 garLoopResultBuilder]: For program point L411(line 411) no Hoare annotation was computed. [2021-12-15 09:01:54,247 INFO L858 garLoopResultBuilder]: For program point L213(lines 213 400) no Hoare annotation was computed. [2021-12-15 09:01:54,247 INFO L858 garLoopResultBuilder]: For program point L82(lines 82 400) no Hoare annotation was computed. [2021-12-15 09:01:54,247 INFO L858 garLoopResultBuilder]: For program point L578-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 09:01:54,247 INFO L858 garLoopResultBuilder]: For program point L545-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 09:01:54,247 INFO L858 garLoopResultBuilder]: For program point L512-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 09:01:54,247 INFO L858 garLoopResultBuilder]: For program point L479-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 09:01:54,247 INFO L858 garLoopResultBuilder]: For program point L446-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 09:01:54,247 INFO L858 garLoopResultBuilder]: For program point L413-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 09:01:54,247 INFO L858 garLoopResultBuilder]: For program point L347(lines 347 400) no Hoare annotation was computed. [2021-12-15 09:01:54,247 INFO L858 garLoopResultBuilder]: For program point L248(lines 248 400) no Hoare annotation was computed. [2021-12-15 09:01:54,247 INFO L858 garLoopResultBuilder]: For program point L579(line 579) no Hoare annotation was computed. [2021-12-15 09:01:54,247 INFO L858 garLoopResultBuilder]: For program point L546(line 546) no Hoare annotation was computed. [2021-12-15 09:01:54,247 INFO L858 garLoopResultBuilder]: For program point L513(line 513) no Hoare annotation was computed. [2021-12-15 09:01:54,247 INFO L858 garLoopResultBuilder]: For program point L480(line 480) no Hoare annotation was computed. [2021-12-15 09:01:54,247 INFO L858 garLoopResultBuilder]: For program point L447(line 447) no Hoare annotation was computed. [2021-12-15 09:01:54,247 INFO L858 garLoopResultBuilder]: For program point L414(line 414) no Hoare annotation was computed. [2021-12-15 09:01:54,248 INFO L858 garLoopResultBuilder]: For program point L183(lines 183 400) no Hoare annotation was computed. [2021-12-15 09:01:54,248 INFO L858 garLoopResultBuilder]: For program point L150(lines 150 400) no Hoare annotation was computed. [2021-12-15 09:01:54,248 INFO L858 garLoopResultBuilder]: For program point L382(lines 382 400) no Hoare annotation was computed. [2021-12-15 09:01:54,248 INFO L858 garLoopResultBuilder]: For program point L316(lines 316 400) no Hoare annotation was computed. [2021-12-15 09:01:54,248 INFO L858 garLoopResultBuilder]: For program point L283(lines 283 400) no Hoare annotation was computed. [2021-12-15 09:01:54,248 INFO L858 garLoopResultBuilder]: For program point L118(lines 118 400) no Hoare annotation was computed. [2021-12-15 09:01:54,248 INFO L858 garLoopResultBuilder]: For program point L581-1(lines 581 583) no Hoare annotation was computed. [2021-12-15 09:01:54,248 INFO L858 garLoopResultBuilder]: For program point L548-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 09:01:54,248 INFO L858 garLoopResultBuilder]: For program point L515-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 09:01:54,248 INFO L858 garLoopResultBuilder]: For program point L482-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 09:01:54,248 INFO L858 garLoopResultBuilder]: For program point L449-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 09:01:54,248 INFO L858 garLoopResultBuilder]: For program point L416-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 09:01:54,248 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-15 09:01:54,248 INFO L858 garLoopResultBuilder]: For program point L218(lines 218 400) no Hoare annotation was computed. [2021-12-15 09:01:54,248 INFO L858 garLoopResultBuilder]: For program point L53(lines 53 400) no Hoare annotation was computed. [2021-12-15 09:01:54,248 INFO L858 garLoopResultBuilder]: For program point L582(line 582) no Hoare annotation was computed. [2021-12-15 09:01:54,248 INFO L858 garLoopResultBuilder]: For program point L549(line 549) no Hoare annotation was computed. [2021-12-15 09:01:54,248 INFO L858 garLoopResultBuilder]: For program point L516(line 516) no Hoare annotation was computed. [2021-12-15 09:01:54,248 INFO L858 garLoopResultBuilder]: For program point L483(line 483) no Hoare annotation was computed. [2021-12-15 09:01:54,249 INFO L858 garLoopResultBuilder]: For program point L450(line 450) no Hoare annotation was computed. [2021-12-15 09:01:54,249 INFO L858 garLoopResultBuilder]: For program point L417(line 417) no Hoare annotation was computed. [2021-12-15 09:01:54,249 INFO L858 garLoopResultBuilder]: For program point L154(lines 154 400) no Hoare annotation was computed. [2021-12-15 09:01:54,249 INFO L854 garLoopResultBuilder]: At program point L584(lines 40 585) the Hoare annotation is: (let ((.cse3 (<= ~a16~0 4)) (.cse5 (= ~a21~0 1)) (.cse0 (= ~a7~0 1)) (.cse6 (= ~a20~0 1)) (.cse7 (= ~a17~0 1)) (.cse1 (<= 14 ~a8~0)) (.cse2 (<= ~a16~0 5)) (.cse4 (= 0 ~a7~0))) (or (and .cse0 .cse1 .cse2) (and .cse0 (<= ~a21~0 0)) (and .cse3 .cse4) (and .cse5 .cse4 .cse6 .cse7) (and .cse3 .cse5 .cse0 .cse6 .cse7) (and .cse4 .cse1 .cse2) (and .cse4 (<= 15 ~a8~0)))) [2021-12-15 09:01:54,249 INFO L858 garLoopResultBuilder]: For program point L551-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 09:01:54,249 INFO L858 garLoopResultBuilder]: For program point L518-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 09:01:54,249 INFO L858 garLoopResultBuilder]: For program point L485-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 09:01:54,249 INFO L858 garLoopResultBuilder]: For program point L452-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 09:01:54,249 INFO L858 garLoopResultBuilder]: For program point L419-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 09:01:54,249 INFO L858 garLoopResultBuilder]: For program point L188(lines 188 400) no Hoare annotation was computed. [2021-12-15 09:01:54,250 INFO L858 garLoopResultBuilder]: For program point L552(line 552) no Hoare annotation was computed. [2021-12-15 09:01:54,250 INFO L858 garLoopResultBuilder]: For program point L519(line 519) no Hoare annotation was computed. [2021-12-15 09:01:54,250 INFO L858 garLoopResultBuilder]: For program point L486(line 486) no Hoare annotation was computed. [2021-12-15 09:01:54,250 INFO L858 garLoopResultBuilder]: For program point L453(line 453) no Hoare annotation was computed. [2021-12-15 09:01:54,250 INFO L858 garLoopResultBuilder]: For program point L420(line 420) no Hoare annotation was computed. [2021-12-15 09:01:54,250 INFO L858 garLoopResultBuilder]: For program point L387(lines 387 400) no Hoare annotation was computed. [2021-12-15 09:01:54,250 INFO L858 garLoopResultBuilder]: For program point L288(lines 288 400) no Hoare annotation was computed. [2021-12-15 09:01:54,250 INFO L858 garLoopResultBuilder]: For program point L255(lines 255 400) no Hoare annotation was computed. [2021-12-15 09:01:54,250 INFO L858 garLoopResultBuilder]: For program point L90(lines 90 400) no Hoare annotation was computed. [2021-12-15 09:01:54,250 INFO L858 garLoopResultBuilder]: For program point L355(lines 355 400) no Hoare annotation was computed. [2021-12-15 09:01:54,250 INFO L858 garLoopResultBuilder]: For program point L322(lines 322 400) no Hoare annotation was computed. [2021-12-15 09:01:54,250 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-15 09:01:54,250 INFO L858 garLoopResultBuilder]: For program point L124(lines 124 400) no Hoare annotation was computed. [2021-12-15 09:01:54,250 INFO L861 garLoopResultBuilder]: At program point L587(lines 587 604) the Hoare annotation is: true [2021-12-15 09:01:54,250 INFO L858 garLoopResultBuilder]: For program point L554-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 09:01:54,250 INFO L858 garLoopResultBuilder]: For program point L521-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 09:01:54,250 INFO L858 garLoopResultBuilder]: For program point L488-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 09:01:54,250 INFO L858 garLoopResultBuilder]: For program point L455-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 09:01:54,250 INFO L858 garLoopResultBuilder]: For program point L422-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 09:01:54,251 INFO L858 garLoopResultBuilder]: For program point L224(lines 224 400) no Hoare annotation was computed. [2021-12-15 09:01:54,251 INFO L858 garLoopResultBuilder]: For program point L158(lines 158 400) no Hoare annotation was computed. [2021-12-15 09:01:54,251 INFO L858 garLoopResultBuilder]: For program point L59(lines 59 400) no Hoare annotation was computed. [2021-12-15 09:01:54,251 INFO L858 garLoopResultBuilder]: For program point L555(line 555) no Hoare annotation was computed. [2021-12-15 09:01:54,251 INFO L858 garLoopResultBuilder]: For program point L522(line 522) no Hoare annotation was computed. [2021-12-15 09:01:54,251 INFO L858 garLoopResultBuilder]: For program point L489(line 489) no Hoare annotation was computed. [2021-12-15 09:01:54,251 INFO L858 garLoopResultBuilder]: For program point L456(line 456) no Hoare annotation was computed. [2021-12-15 09:01:54,251 INFO L858 garLoopResultBuilder]: For program point L423(line 423) no Hoare annotation was computed. [2021-12-15 09:01:54,251 INFO L858 garLoopResultBuilder]: For program point L94(lines 94 400) no Hoare annotation was computed. [2021-12-15 09:01:54,251 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-15 09:01:54,251 INFO L858 garLoopResultBuilder]: For program point L557-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 09:01:54,251 INFO L858 garLoopResultBuilder]: For program point L524-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 09:01:54,251 INFO L858 garLoopResultBuilder]: For program point L491-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 09:01:54,251 INFO L858 garLoopResultBuilder]: For program point L458-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 09:01:54,251 INFO L858 garLoopResultBuilder]: For program point L392(lines 392 400) no Hoare annotation was computed. [2021-12-15 09:01:54,252 INFO L858 garLoopResultBuilder]: For program point L425-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 09:01:54,252 INFO L858 garLoopResultBuilder]: For program point L326(lines 326 400) no Hoare annotation was computed. [2021-12-15 09:01:54,252 INFO L858 garLoopResultBuilder]: For program point L260(lines 260 400) no Hoare annotation was computed. [2021-12-15 09:01:54,252 INFO L858 garLoopResultBuilder]: For program point L558(line 558) no Hoare annotation was computed. [2021-12-15 09:01:54,252 INFO L858 garLoopResultBuilder]: For program point L525(line 525) no Hoare annotation was computed. [2021-12-15 09:01:54,252 INFO L858 garLoopResultBuilder]: For program point L492(line 492) no Hoare annotation was computed. [2021-12-15 09:01:54,252 INFO L858 garLoopResultBuilder]: For program point L459(line 459) no Hoare annotation was computed. [2021-12-15 09:01:54,252 INFO L858 garLoopResultBuilder]: For program point L426(line 426) no Hoare annotation was computed. [2021-12-15 09:01:54,252 INFO L858 garLoopResultBuilder]: For program point L228(lines 228 400) no Hoare annotation was computed. [2021-12-15 09:01:54,252 INFO L858 garLoopResultBuilder]: For program point L162(lines 162 400) no Hoare annotation was computed. [2021-12-15 09:01:54,252 INFO L858 garLoopResultBuilder]: For program point L129(lines 129 400) no Hoare annotation was computed. [2021-12-15 09:01:54,252 INFO L858 garLoopResultBuilder]: For program point L328(lines 328 400) no Hoare annotation was computed. [2021-12-15 09:01:54,252 INFO L858 garLoopResultBuilder]: For program point L196(lines 196 400) no Hoare annotation was computed. [2021-12-15 09:01:54,252 INFO L858 garLoopResultBuilder]: For program point L64(lines 64 400) no Hoare annotation was computed. [2021-12-15 09:01:54,252 INFO L858 garLoopResultBuilder]: For program point L560-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 09:01:54,252 INFO L854 garLoopResultBuilder]: At program point L593-2(lines 593 603) the Hoare annotation is: (let ((.cse3 (<= ~a16~0 4)) (.cse5 (= ~a21~0 1)) (.cse0 (= ~a7~0 1)) (.cse6 (= ~a20~0 1)) (.cse7 (= ~a17~0 1)) (.cse1 (<= 14 ~a8~0)) (.cse2 (<= ~a16~0 5)) (.cse4 (= 0 ~a7~0))) (or (and .cse0 .cse1 .cse2) (and .cse0 (<= ~a21~0 0)) (and .cse3 .cse4) (and .cse5 .cse4 .cse6 .cse7) (and .cse3 .cse5 .cse0 .cse6 .cse7) (and .cse4 .cse1 .cse2) (and .cse4 (<= 15 ~a8~0)))) [2021-12-15 09:01:54,252 INFO L858 garLoopResultBuilder]: For program point L527-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 09:01:54,253 INFO L858 garLoopResultBuilder]: For program point L494-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 09:01:54,253 INFO L858 garLoopResultBuilder]: For program point L461-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 09:01:54,253 INFO L858 garLoopResultBuilder]: For program point L428-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 09:01:54,253 INFO L858 garLoopResultBuilder]: For program point L296(lines 296 400) no Hoare annotation was computed. [2021-12-15 09:01:54,253 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-15 09:01:54,253 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 444) no Hoare annotation was computed. [2021-12-15 09:01:54,253 INFO L858 garLoopResultBuilder]: For program point L561(line 561) no Hoare annotation was computed. [2021-12-15 09:01:54,253 INFO L858 garLoopResultBuilder]: For program point L528(line 528) no Hoare annotation was computed. [2021-12-15 09:01:54,253 INFO L858 garLoopResultBuilder]: For program point L495(line 495) no Hoare annotation was computed. [2021-12-15 09:01:54,253 INFO L858 garLoopResultBuilder]: For program point L462(line 462) no Hoare annotation was computed. [2021-12-15 09:01:54,253 INFO L858 garLoopResultBuilder]: For program point L429(line 429) no Hoare annotation was computed. [2021-12-15 09:01:54,253 INFO L858 garLoopResultBuilder]: For program point L363(lines 363 400) no Hoare annotation was computed. [2021-12-15 09:01:54,253 INFO L858 garLoopResultBuilder]: For program point L199(lines 199 400) no Hoare annotation was computed. [2021-12-15 09:01:54,253 INFO L858 garLoopResultBuilder]: For program point L563-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 09:01:54,253 INFO L858 garLoopResultBuilder]: For program point L530-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 09:01:54,253 INFO L858 garLoopResultBuilder]: For program point L497-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 09:01:54,253 INFO L858 garLoopResultBuilder]: For program point L464-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 09:01:54,253 INFO L858 garLoopResultBuilder]: For program point L431-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 09:01:54,253 INFO L858 garLoopResultBuilder]: For program point L365(lines 365 400) no Hoare annotation was computed. [2021-12-15 09:01:54,254 INFO L858 garLoopResultBuilder]: For program point L266(lines 266 400) no Hoare annotation was computed. [2021-12-15 09:01:54,254 INFO L858 garLoopResultBuilder]: For program point L233(lines 233 400) no Hoare annotation was computed. [2021-12-15 09:01:54,254 INFO L858 garLoopResultBuilder]: For program point L134(lines 134 400) no Hoare annotation was computed. [2021-12-15 09:01:54,256 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 09:01:54,258 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-15 09:01:54,273 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 09:01:54 BoogieIcfgContainer [2021-12-15 09:01:54,274 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-15 09:01:54,274 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-15 09:01:54,274 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-15 09:01:54,274 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-15 09:01:54,275 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 09:01:46" (3/4) ... [2021-12-15 09:01:54,277 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-15 09:01:54,294 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-12-15 09:01:54,295 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-15 09:01:54,296 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-15 09:01:54,296 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-15 09:01:54,391 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-15 09:01:54,391 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-15 09:01:54,392 INFO L158 Benchmark]: Toolchain (without parser) took 9461.19ms. Allocated memory was 86.0MB in the beginning and 163.6MB in the end (delta: 77.6MB). Free memory was 54.8MB in the beginning and 67.6MB in the end (delta: -12.8MB). Peak memory consumption was 65.3MB. Max. memory is 16.1GB. [2021-12-15 09:01:54,392 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 86.0MB. Free memory was 64.9MB in the beginning and 64.9MB in the end (delta: 43.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 09:01:54,392 INFO L158 Benchmark]: CACSL2BoogieTranslator took 422.18ms. Allocated memory is still 86.0MB. Free memory was 54.6MB in the beginning and 51.9MB in the end (delta: 2.7MB). Peak memory consumption was 19.7MB. Max. memory is 16.1GB. [2021-12-15 09:01:54,393 INFO L158 Benchmark]: Boogie Procedure Inliner took 85.09ms. Allocated memory is still 86.0MB. Free memory was 51.9MB in the beginning and 46.2MB in the end (delta: 5.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-15 09:01:54,393 INFO L158 Benchmark]: Boogie Preprocessor took 50.86ms. Allocated memory is still 86.0MB. Free memory was 46.2MB in the beginning and 42.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-15 09:01:54,394 INFO L158 Benchmark]: RCFGBuilder took 976.72ms. Allocated memory was 86.0MB in the beginning and 113.2MB in the end (delta: 27.3MB). Free memory was 41.7MB in the beginning and 68.1MB in the end (delta: -26.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-15 09:01:54,394 INFO L158 Benchmark]: TraceAbstraction took 7802.22ms. Allocated memory was 113.2MB in the beginning and 163.6MB in the end (delta: 50.3MB). Free memory was 67.5MB in the beginning and 82.3MB in the end (delta: -14.8MB). Peak memory consumption was 75.8MB. Max. memory is 16.1GB. [2021-12-15 09:01:54,394 INFO L158 Benchmark]: Witness Printer took 117.21ms. Allocated memory is still 163.6MB. Free memory was 81.3MB in the beginning and 67.6MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-15 09:01:54,396 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 86.0MB. Free memory was 64.9MB in the beginning and 64.9MB in the end (delta: 43.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 422.18ms. Allocated memory is still 86.0MB. Free memory was 54.6MB in the beginning and 51.9MB in the end (delta: 2.7MB). Peak memory consumption was 19.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 85.09ms. Allocated memory is still 86.0MB. Free memory was 51.9MB in the beginning and 46.2MB in the end (delta: 5.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.86ms. Allocated memory is still 86.0MB. Free memory was 46.2MB in the beginning and 42.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 976.72ms. Allocated memory was 86.0MB in the beginning and 113.2MB in the end (delta: 27.3MB). Free memory was 41.7MB in the beginning and 68.1MB in the end (delta: -26.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 7802.22ms. Allocated memory was 113.2MB in the beginning and 163.6MB in the end (delta: 50.3MB). Free memory was 67.5MB in the beginning and 82.3MB in the end (delta: -14.8MB). Peak memory consumption was 75.8MB. Max. memory is 16.1GB. * Witness Printer took 117.21ms. Allocated memory is still 163.6MB. Free memory was 81.3MB in the beginning and 67.6MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 444]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 198 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 7.7s, OverallIterations: 10, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1249 SdHoareTripleChecker+Valid, 3.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1249 mSDsluCounter, 867 SdHoareTripleChecker+Invalid, 2.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 57 mSDsCounter, 546 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3419 IncrementalHoareTripleChecker+Invalid, 3965 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 546 mSolverCounterUnsat, 810 mSDtfsCounter, 3419 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 531 GetRequests, 514 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1969occurred in iteration=8, InterpolantAutomatonStates: 31, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 10 MinimizatonAttempts, 1572 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 37 NumberOfFragments, 143 HoareAnnotationTreeSize, 3 FomulaSimplifications, 242 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 3 FomulaSimplificationsInter, 846 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 1823 NumberOfCodeBlocks, 1823 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 1810 ConstructedInterpolants, 0 QuantifiedInterpolants, 3529 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1150 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 13 InterpolantComputations, 10 PerfectInterpolantSequences, 1411/1420 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 593]: Loop Invariant Derived loop invariant: (((((((a7 == 1 && 14 <= a8) && a16 <= 5) || (a7 == 1 && a21 <= 0)) || (a16 <= 4 && 0 == a7)) || (((a21 == 1 && 0 == a7) && a20 == 1) && a17 == 1)) || ((((a16 <= 4 && a21 == 1) && a7 == 1) && a20 == 1) && a17 == 1)) || ((0 == a7 && 14 <= a8) && a16 <= 5)) || (0 == a7 && 15 <= a8) - InvariantResult [Line: 587]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: (((((((a7 == 1 && 14 <= a8) && a16 <= 5) || (a7 == 1 && a21 <= 0)) || (a16 <= 4 && 0 == a7)) || (((a21 == 1 && 0 == a7) && a20 == 1) && a17 == 1)) || ((((a16 <= 4 && a21 == 1) && a7 == 1) && a20 == 1) && a17 == 1)) || ((0 == a7 && 14 <= a8) && a16 <= 5)) || (0 == a7 && 15 <= a8) RESULT: Ultimate proved your program to be correct! [2021-12-15 09:01:54,445 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE