./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem02_label40.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem02_label40.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f0697d9089c8f644e106fd291328f66f211f5f9eb49bfcc0a5bab680b0bbbbc1 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-15 22:04:49,544 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 22:04:49,546 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 22:04:49,592 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 22:04:49,593 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 22:04:49,596 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 22:04:49,597 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 22:04:49,599 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 22:04:49,601 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 22:04:49,605 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 22:04:49,606 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 22:04:49,607 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 22:04:49,607 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 22:04:49,609 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 22:04:49,611 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 22:04:49,614 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 22:04:49,616 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 22:04:49,617 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 22:04:49,619 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 22:04:49,624 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 22:04:49,625 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 22:04:49,626 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 22:04:49,627 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 22:04:49,628 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 22:04:49,634 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 22:04:49,634 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 22:04:49,634 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 22:04:49,636 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 22:04:49,636 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 22:04:49,637 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 22:04:49,637 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 22:04:49,638 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 22:04:49,639 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 22:04:49,640 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 22:04:49,641 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 22:04:49,641 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 22:04:49,642 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 22:04:49,642 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 22:04:49,642 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 22:04:49,643 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 22:04:49,644 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 22:04:49,646 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 22:04:49,677 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 22:04:49,677 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 22:04:49,678 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 22:04:49,678 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 22:04:49,679 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 22:04:49,679 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 22:04:49,679 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 22:04:49,680 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 22:04:49,680 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 22:04:49,680 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 22:04:49,681 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 22:04:49,681 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 22:04:49,681 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 22:04:49,681 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 22:04:49,681 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 22:04:49,682 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 22:04:49,682 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 22:04:49,682 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 22:04:49,682 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 22:04:49,682 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 22:04:49,683 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 22:04:49,683 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 22:04:49,683 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 22:04:49,683 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 22:04:49,683 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 22:04:49,684 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 22:04:49,684 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 22:04:49,684 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 22:04:49,684 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 22:04:49,684 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 22:04:49,685 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 22:04:49,685 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 22:04:49,685 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 22:04:49,685 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 22:04:49,685 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f0697d9089c8f644e106fd291328f66f211f5f9eb49bfcc0a5bab680b0bbbbc1 [2021-12-15 22:04:49,928 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 22:04:49,946 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 22:04:49,948 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 22:04:49,949 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 22:04:49,950 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 22:04:49,951 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem02_label40.c [2021-12-15 22:04:50,022 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ed23f02c/91a9b07975ef47e0b5f42c9de0ea248e/FLAG97df3c5f9 [2021-12-15 22:04:50,450 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 22:04:50,451 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem02_label40.c [2021-12-15 22:04:50,464 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ed23f02c/91a9b07975ef47e0b5f42c9de0ea248e/FLAG97df3c5f9 [2021-12-15 22:04:50,798 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ed23f02c/91a9b07975ef47e0b5f42c9de0ea248e [2021-12-15 22:04:50,800 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 22:04:50,802 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 22:04:50,807 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 22:04:50,807 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 22:04:50,810 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 22:04:50,811 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:04:50" (1/1) ... [2021-12-15 22:04:50,812 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@922a88b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:04:50, skipping insertion in model container [2021-12-15 22:04:50,812 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:04:50" (1/1) ... [2021-12-15 22:04:50,818 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 22:04:50,860 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 22:04:51,096 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/Problem02_label40.c[15538,15551] [2021-12-15 22:04:51,143 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 22:04:51,162 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 22:04:51,224 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/Problem02_label40.c[15538,15551] [2021-12-15 22:04:51,240 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 22:04:51,251 INFO L208 MainTranslator]: Completed translation [2021-12-15 22:04:51,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:04:51 WrapperNode [2021-12-15 22:04:51,251 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 22:04:51,252 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 22:04:51,252 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 22:04:51,253 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 22:04:51,258 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:04:51" (1/1) ... [2021-12-15 22:04:51,272 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:04:51" (1/1) ... [2021-12-15 22:04:51,326 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 668 [2021-12-15 22:04:51,326 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 22:04:51,327 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 22:04:51,327 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 22:04:51,327 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 22:04:51,334 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:04:51" (1/1) ... [2021-12-15 22:04:51,334 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:04:51" (1/1) ... [2021-12-15 22:04:51,339 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:04:51" (1/1) ... [2021-12-15 22:04:51,349 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:04:51" (1/1) ... [2021-12-15 22:04:51,370 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:04:51" (1/1) ... [2021-12-15 22:04:51,388 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:04:51" (1/1) ... [2021-12-15 22:04:51,394 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:04:51" (1/1) ... [2021-12-15 22:04:51,415 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 22:04:51,416 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 22:04:51,416 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 22:04:51,416 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 22:04:51,419 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:04:51" (1/1) ... [2021-12-15 22:04:51,424 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 22:04:51,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 22:04:51,452 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-15 22:04:51,456 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-15 22:04:51,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 22:04:51,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 22:04:51,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 22:04:51,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 22:04:51,532 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 22:04:51,533 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 22:04:52,216 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 22:04:52,226 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 22:04:52,226 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-15 22:04:52,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:04:52 BoogieIcfgContainer [2021-12-15 22:04:52,229 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 22:04:52,231 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 22:04:52,231 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 22:04:52,234 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 22:04:52,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 10:04:50" (1/3) ... [2021-12-15 22:04:52,235 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50bdbc25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:04:52, skipping insertion in model container [2021-12-15 22:04:52,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:04:51" (2/3) ... [2021-12-15 22:04:52,236 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50bdbc25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:04:52, skipping insertion in model container [2021-12-15 22:04:52,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:04:52" (3/3) ... [2021-12-15 22:04:52,237 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem02_label40.c [2021-12-15 22:04:52,241 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 22:04:52,242 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 22:04:52,291 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 22:04:52,297 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-15 22:04:52,298 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 22:04:52,349 INFO L276 IsEmpty]: Start isEmpty. Operand has 227 states, 225 states have (on average 1.6666666666666667) internal successors, (375), 226 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:04:52,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-12-15 22:04:52,365 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:04:52,366 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, 1, 1, 1] [2021-12-15 22:04:52,366 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:04:52,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:04:52,371 INFO L85 PathProgramCache]: Analyzing trace with hash 427661899, now seen corresponding path program 1 times [2021-12-15 22:04:52,378 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:04:52,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583538805] [2021-12-15 22:04:52,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:04:52,379 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:04:52,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:04:52,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 22:04:52,686 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:04:52,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583538805] [2021-12-15 22:04:52,688 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583538805] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:04:52,688 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:04:52,688 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 22:04:52,689 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891054185] [2021-12-15 22:04:52,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:04:52,695 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:04:52,695 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:04:52,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:04:52,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:04:52,724 INFO L87 Difference]: Start difference. First operand has 227 states, 225 states have (on average 1.6666666666666667) internal successors, (375), 226 states have internal predecessors, (375), 0 states have call successors, (0), 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 29.666666666666668) internal successors, (89), 2 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:04:53,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:04:53,387 INFO L93 Difference]: Finished difference Result 630 states and 1070 transitions. [2021-12-15 22:04:53,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:04:53,389 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 2 states have internal predecessors, (89), 0 states have call successors, (0), 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 89 [2021-12-15 22:04:53,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:04:53,407 INFO L225 Difference]: With dead ends: 630 [2021-12-15 22:04:53,408 INFO L226 Difference]: Without dead ends: 318 [2021-12-15 22:04:53,414 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:04:53,418 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 141 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-15 22:04:53,419 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 119 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-15 22:04:53,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2021-12-15 22:04:53,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 318. [2021-12-15 22:04:53,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 317 states have (on average 1.473186119873817) internal successors, (467), 317 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:04:53,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 467 transitions. [2021-12-15 22:04:53,474 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 467 transitions. Word has length 89 [2021-12-15 22:04:53,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:04:53,475 INFO L470 AbstractCegarLoop]: Abstraction has 318 states and 467 transitions. [2021-12-15 22:04:53,476 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 2 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:04:53,476 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 467 transitions. [2021-12-15 22:04:53,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-12-15 22:04:53,483 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:04:53,483 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:04:53,484 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 22:04:53,484 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:04:53,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:04:53,486 INFO L85 PathProgramCache]: Analyzing trace with hash 1584478528, now seen corresponding path program 1 times [2021-12-15 22:04:53,486 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:04:53,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644859696] [2021-12-15 22:04:53,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:04:53,486 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:04:53,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:04:53,656 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 22:04:53,657 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:04:53,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644859696] [2021-12-15 22:04:53,657 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644859696] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:04:53,657 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:04:53,658 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 22:04:53,658 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903754] [2021-12-15 22:04:53,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:04:53,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-15 22:04:53,659 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:04:53,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-15 22:04:53,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-15 22:04:53,660 INFO L87 Difference]: Start difference. First operand 318 states and 467 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:04:54,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:04:54,274 INFO L93 Difference]: Finished difference Result 999 states and 1508 transitions. [2021-12-15 22:04:54,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-15 22:04:54,274 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 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 93 [2021-12-15 22:04:54,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:04:54,277 INFO L225 Difference]: With dead ends: 999 [2021-12-15 22:04:54,277 INFO L226 Difference]: Without dead ends: 600 [2021-12-15 22:04:54,278 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-15 22:04:54,279 INFO L933 BasicCegarLoop]: 80 mSDtfsCounter, 173 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 665 mSolverCounterSat, 135 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 800 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 135 IncrementalHoareTripleChecker+Valid, 665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-15 22:04:54,280 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [173 Valid, 113 Invalid, 800 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [135 Valid, 665 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-15 22:04:54,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2021-12-15 22:04:54,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 600. [2021-12-15 22:04:54,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 600 states, 599 states have (on average 1.358931552587646) internal successors, (814), 599 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:04:54,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 814 transitions. [2021-12-15 22:04:54,311 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 814 transitions. Word has length 93 [2021-12-15 22:04:54,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:04:54,312 INFO L470 AbstractCegarLoop]: Abstraction has 600 states and 814 transitions. [2021-12-15 22:04:54,312 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:04:54,312 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 814 transitions. [2021-12-15 22:04:54,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-12-15 22:04:54,314 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:04:54,314 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:04:54,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-15 22:04:54,315 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:04:54,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:04:54,316 INFO L85 PathProgramCache]: Analyzing trace with hash -1935066262, now seen corresponding path program 1 times [2021-12-15 22:04:54,316 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:04:54,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903297764] [2021-12-15 22:04:54,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:04:54,317 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:04:54,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:04:54,362 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 22:04:54,363 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:04:54,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903297764] [2021-12-15 22:04:54,363 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903297764] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:04:54,363 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:04:54,364 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 22:04:54,364 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144767669] [2021-12-15 22:04:54,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:04:54,365 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:04:54,365 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:04:54,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:04:54,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:04:54,366 INFO L87 Difference]: Start difference. First operand 600 states and 814 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 22:04:54,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:04:54,746 INFO L93 Difference]: Finished difference Result 1781 states and 2421 transitions. [2021-12-15 22:04:54,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:04:54,747 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 107 [2021-12-15 22:04:54,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:04:54,751 INFO L225 Difference]: With dead ends: 1781 [2021-12-15 22:04:54,751 INFO L226 Difference]: Without dead ends: 1183 [2021-12-15 22:04:54,752 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:04:54,753 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 158 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-15 22:04:54,754 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 99 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-15 22:04:54,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1183 states. [2021-12-15 22:04:54,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1183 to 1173. [2021-12-15 22:04:54,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1173 states, 1172 states have (on average 1.3131399317406143) internal successors, (1539), 1172 states have internal predecessors, (1539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:04:54,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1173 states to 1173 states and 1539 transitions. [2021-12-15 22:04:54,807 INFO L78 Accepts]: Start accepts. Automaton has 1173 states and 1539 transitions. Word has length 107 [2021-12-15 22:04:54,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:04:54,808 INFO L470 AbstractCegarLoop]: Abstraction has 1173 states and 1539 transitions. [2021-12-15 22:04:54,808 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 22:04:54,808 INFO L276 IsEmpty]: Start isEmpty. Operand 1173 states and 1539 transitions. [2021-12-15 22:04:54,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-15 22:04:54,810 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:04:54,810 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:04:54,810 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-15 22:04:54,811 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:04:54,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:04:54,811 INFO L85 PathProgramCache]: Analyzing trace with hash 1355718265, now seen corresponding path program 1 times [2021-12-15 22:04:54,812 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:04:54,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000627858] [2021-12-15 22:04:54,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:04:54,812 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:04:54,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:04:54,864 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 22:04:54,864 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:04:54,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000627858] [2021-12-15 22:04:54,865 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000627858] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:04:54,865 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:04:54,865 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 22:04:54,865 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562398822] [2021-12-15 22:04:54,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:04:54,866 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:04:54,866 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:04:54,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:04:54,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:04:54,867 INFO L87 Difference]: Start difference. First operand 1173 states and 1539 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 2 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:04:55,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:04:55,281 INFO L93 Difference]: Finished difference Result 3329 states and 4392 transitions. [2021-12-15 22:04:55,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:04:55,282 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 2 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-12-15 22:04:55,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:04:55,289 INFO L225 Difference]: With dead ends: 3329 [2021-12-15 22:04:55,290 INFO L226 Difference]: Without dead ends: 2158 [2021-12-15 22:04:55,291 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:04:55,292 INFO L933 BasicCegarLoop]: 111 mSDtfsCounter, 125 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-15 22:04:55,293 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 128 Invalid, 445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-15 22:04:55,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2158 states. [2021-12-15 22:04:55,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2158 to 2155. [2021-12-15 22:04:55,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2155 states, 2154 states have (on average 1.201949860724234) internal successors, (2589), 2154 states have internal predecessors, (2589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:04:55,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2155 states to 2155 states and 2589 transitions. [2021-12-15 22:04:55,328 INFO L78 Accepts]: Start accepts. Automaton has 2155 states and 2589 transitions. Word has length 113 [2021-12-15 22:04:55,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:04:55,329 INFO L470 AbstractCegarLoop]: Abstraction has 2155 states and 2589 transitions. [2021-12-15 22:04:55,329 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 2 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:04:55,329 INFO L276 IsEmpty]: Start isEmpty. Operand 2155 states and 2589 transitions. [2021-12-15 22:04:55,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-15 22:04:55,331 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:04:55,332 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:04:55,332 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-15 22:04:55,332 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:04:55,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:04:55,333 INFO L85 PathProgramCache]: Analyzing trace with hash -1989413815, now seen corresponding path program 1 times [2021-12-15 22:04:55,333 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:04:55,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654792419] [2021-12-15 22:04:55,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:04:55,334 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:04:55,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:04:55,462 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 18 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 22:04:55,463 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:04:55,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654792419] [2021-12-15 22:04:55,463 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654792419] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 22:04:55,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1695269126] [2021-12-15 22:04:55,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:04:55,464 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 22:04:55,464 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 22:04:55,467 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-15 22:04:55,479 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-15 22:04:55,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:04:55,557 INFO L263 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-15 22:04:55,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 22:04:55,871 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-12-15 22:04:55,871 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 22:04:55,872 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1695269126] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:04:55,872 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-15 22:04:55,872 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-12-15 22:04:55,872 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148493730] [2021-12-15 22:04:55,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:04:55,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:04:55,873 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:04:55,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:04:55,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-12-15 22:04:55,873 INFO L87 Difference]: Start difference. First operand 2155 states and 2589 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:04:56,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:04:56,275 INFO L93 Difference]: Finished difference Result 5008 states and 6126 transitions. [2021-12-15 22:04:56,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:04:56,276 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-12-15 22:04:56,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:04:56,283 INFO L225 Difference]: With dead ends: 5008 [2021-12-15 22:04:56,283 INFO L226 Difference]: Without dead ends: 2145 [2021-12-15 22:04:56,286 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-12-15 22:04:56,287 INFO L933 BasicCegarLoop]: 251 mSDtfsCounter, 57 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-15 22:04:56,288 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [57 Valid, 275 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-15 22:04:56,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2145 states. [2021-12-15 22:04:56,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2145 to 2145. [2021-12-15 22:04:56,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2145 states, 2144 states have (on average 1.1744402985074627) internal successors, (2518), 2144 states have internal predecessors, (2518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:04:56,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2145 states to 2145 states and 2518 transitions. [2021-12-15 22:04:56,319 INFO L78 Accepts]: Start accepts. Automaton has 2145 states and 2518 transitions. Word has length 116 [2021-12-15 22:04:56,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:04:56,319 INFO L470 AbstractCegarLoop]: Abstraction has 2145 states and 2518 transitions. [2021-12-15 22:04:56,320 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:04:56,320 INFO L276 IsEmpty]: Start isEmpty. Operand 2145 states and 2518 transitions. [2021-12-15 22:04:56,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-12-15 22:04:56,322 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:04:56,322 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:04:56,378 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 22:04:56,537 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 22:04:56,538 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:04:56,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:04:56,538 INFO L85 PathProgramCache]: Analyzing trace with hash 443706062, now seen corresponding path program 1 times [2021-12-15 22:04:56,538 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:04:56,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323980201] [2021-12-15 22:04:56,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:04:56,539 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:04:56,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:04:56,630 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 22:04:56,630 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:04:56,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323980201] [2021-12-15 22:04:56,631 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323980201] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:04:56,631 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:04:56,631 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-15 22:04:56,631 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576467105] [2021-12-15 22:04:56,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:04:56,632 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-15 22:04:56,632 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:04:56,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-15 22:04:56,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-15 22:04:56,633 INFO L87 Difference]: Start difference. First operand 2145 states and 2518 transitions. Second operand has 5 states, 5 states have (on average 23.6) 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 22:04:57,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:04:57,302 INFO L93 Difference]: Finished difference Result 4902 states and 5756 transitions. [2021-12-15 22:04:57,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-15 22:04:57,302 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.6) 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 118 [2021-12-15 22:04:57,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:04:57,309 INFO L225 Difference]: With dead ends: 4902 [2021-12-15 22:04:57,309 INFO L226 Difference]: Without dead ends: 2187 [2021-12-15 22:04:57,312 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-12-15 22:04:57,313 INFO L933 BasicCegarLoop]: 64 mSDtfsCounter, 447 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 825 mSolverCounterSat, 153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 447 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 978 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 153 IncrementalHoareTripleChecker+Valid, 825 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-15 22:04:57,313 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [447 Valid, 111 Invalid, 978 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [153 Valid, 825 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-15 22:04:57,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2187 states. [2021-12-15 22:04:57,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2187 to 2145. [2021-12-15 22:04:57,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2145 states, 2144 states have (on average 1.131063432835821) internal successors, (2425), 2144 states have internal predecessors, (2425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:04:57,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2145 states to 2145 states and 2425 transitions. [2021-12-15 22:04:57,358 INFO L78 Accepts]: Start accepts. Automaton has 2145 states and 2425 transitions. Word has length 118 [2021-12-15 22:04:57,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:04:57,358 INFO L470 AbstractCegarLoop]: Abstraction has 2145 states and 2425 transitions. [2021-12-15 22:04:57,358 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.6) 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 22:04:57,359 INFO L276 IsEmpty]: Start isEmpty. Operand 2145 states and 2425 transitions. [2021-12-15 22:04:57,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-12-15 22:04:57,361 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:04:57,361 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:04:57,362 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-15 22:04:57,362 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:04:57,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:04:57,363 INFO L85 PathProgramCache]: Analyzing trace with hash -1019939816, now seen corresponding path program 1 times [2021-12-15 22:04:57,364 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:04:57,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511957905] [2021-12-15 22:04:57,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:04:57,364 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:04:57,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:04:57,417 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 22:04:57,417 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:04:57,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511957905] [2021-12-15 22:04:57,418 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511957905] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:04:57,418 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:04:57,418 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 22:04:57,418 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793413152] [2021-12-15 22:04:57,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:04:57,419 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:04:57,419 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:04:57,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:04:57,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:04:57,420 INFO L87 Difference]: Start difference. First operand 2145 states and 2425 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:04:57,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:04:57,758 INFO L93 Difference]: Finished difference Result 4288 states and 4851 transitions. [2021-12-15 22:04:57,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:04:57,758 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 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 122 [2021-12-15 22:04:57,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:04:57,765 INFO L225 Difference]: With dead ends: 4288 [2021-12-15 22:04:57,765 INFO L226 Difference]: Without dead ends: 1865 [2021-12-15 22:04:57,767 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:04:57,769 INFO L933 BasicCegarLoop]: 207 mSDtfsCounter, 138 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-15 22:04:57,770 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 230 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-15 22:04:57,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1865 states. [2021-12-15 22:04:57,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1865 to 1857. [2021-12-15 22:04:57,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1857 states, 1856 states have (on average 1.0991379310344827) internal successors, (2040), 1856 states have internal predecessors, (2040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:04:57,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1857 states to 1857 states and 2040 transitions. [2021-12-15 22:04:57,796 INFO L78 Accepts]: Start accepts. Automaton has 1857 states and 2040 transitions. Word has length 122 [2021-12-15 22:04:57,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:04:57,797 INFO L470 AbstractCegarLoop]: Abstraction has 1857 states and 2040 transitions. [2021-12-15 22:04:57,797 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:04:57,797 INFO L276 IsEmpty]: Start isEmpty. Operand 1857 states and 2040 transitions. [2021-12-15 22:04:57,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-12-15 22:04:57,799 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:04:57,800 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:04:57,800 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-15 22:04:57,800 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:04:57,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:04:57,801 INFO L85 PathProgramCache]: Analyzing trace with hash 710747632, now seen corresponding path program 1 times [2021-12-15 22:04:57,802 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:04:57,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312058371] [2021-12-15 22:04:57,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:04:57,802 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:04:57,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:04:57,848 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-12-15 22:04:57,848 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:04:57,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312058371] [2021-12-15 22:04:57,849 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312058371] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:04:57,849 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:04:57,849 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 22:04:57,849 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407146570] [2021-12-15 22:04:57,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:04:57,850 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:04:57,850 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:04:57,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:04:57,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:04:57,851 INFO L87 Difference]: Start difference. First operand 1857 states and 2040 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:04:58,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:04:58,171 INFO L93 Difference]: Finished difference Result 4413 states and 4843 transitions. [2021-12-15 22:04:58,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:04:58,172 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 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 140 [2021-12-15 22:04:58,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:04:58,179 INFO L225 Difference]: With dead ends: 4413 [2021-12-15 22:04:58,179 INFO L226 Difference]: Without dead ends: 2558 [2021-12-15 22:04:58,181 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:04:58,181 INFO L933 BasicCegarLoop]: 210 mSDtfsCounter, 113 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-15 22:04:58,183 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 225 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-15 22:04:58,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2558 states. [2021-12-15 22:04:58,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2558 to 2417. [2021-12-15 22:04:58,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2417 states, 2416 states have (on average 1.0819536423841059) internal successors, (2614), 2416 states have internal predecessors, (2614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:04:58,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2417 states to 2417 states and 2614 transitions. [2021-12-15 22:04:58,223 INFO L78 Accepts]: Start accepts. Automaton has 2417 states and 2614 transitions. Word has length 140 [2021-12-15 22:04:58,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:04:58,224 INFO L470 AbstractCegarLoop]: Abstraction has 2417 states and 2614 transitions. [2021-12-15 22:04:58,225 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:04:58,225 INFO L276 IsEmpty]: Start isEmpty. Operand 2417 states and 2614 transitions. [2021-12-15 22:04:58,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2021-12-15 22:04:58,227 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:04:58,228 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:04:58,228 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-15 22:04:58,228 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:04:58,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:04:58,229 INFO L85 PathProgramCache]: Analyzing trace with hash -1519064898, now seen corresponding path program 1 times [2021-12-15 22:04:58,229 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:04:58,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673924155] [2021-12-15 22:04:58,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:04:58,229 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:04:58,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:04:58,294 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 22:04:58,294 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:04:58,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673924155] [2021-12-15 22:04:58,294 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673924155] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:04:58,295 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:04:58,295 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 22:04:58,295 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308559181] [2021-12-15 22:04:58,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:04:58,296 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:04:58,296 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:04:58,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:04:58,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:04:58,297 INFO L87 Difference]: Start difference. First operand 2417 states and 2614 transitions. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:04:58,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:04:58,598 INFO L93 Difference]: Finished difference Result 5109 states and 5554 transitions. [2021-12-15 22:04:58,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:04:58,598 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 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 160 [2021-12-15 22:04:58,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:04:58,606 INFO L225 Difference]: With dead ends: 5109 [2021-12-15 22:04:58,606 INFO L226 Difference]: Without dead ends: 2694 [2021-12-15 22:04:58,608 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:04:58,611 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 138 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-15 22:04:58,611 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 54 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-15 22:04:58,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2694 states. [2021-12-15 22:04:58,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2694 to 2692. [2021-12-15 22:04:58,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2692 states, 2691 states have (on average 1.0769230769230769) internal successors, (2898), 2691 states have internal predecessors, (2898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:04:58,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2692 states to 2692 states and 2898 transitions. [2021-12-15 22:04:58,666 INFO L78 Accepts]: Start accepts. Automaton has 2692 states and 2898 transitions. Word has length 160 [2021-12-15 22:04:58,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:04:58,667 INFO L470 AbstractCegarLoop]: Abstraction has 2692 states and 2898 transitions. [2021-12-15 22:04:58,667 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:04:58,668 INFO L276 IsEmpty]: Start isEmpty. Operand 2692 states and 2898 transitions. [2021-12-15 22:04:58,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-12-15 22:04:58,671 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:04:58,671 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-12-15 22:04:58,671 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-15 22:04:58,671 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:04:58,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:04:58,672 INFO L85 PathProgramCache]: Analyzing trace with hash -137291506, now seen corresponding path program 1 times [2021-12-15 22:04:58,672 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:04:58,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205730941] [2021-12-15 22:04:58,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:04:58,672 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:04:58,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:04:58,732 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 109 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-12-15 22:04:58,732 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:04:58,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205730941] [2021-12-15 22:04:58,733 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205730941] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:04:58,733 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:04:58,733 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 22:04:58,733 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996753042] [2021-12-15 22:04:58,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:04:58,734 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:04:58,734 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:04:58,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:04:58,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:04:58,735 INFO L87 Difference]: Start difference. First operand 2692 states and 2898 transitions. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:04:59,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:04:59,050 INFO L93 Difference]: Finished difference Result 6084 states and 6571 transitions. [2021-12-15 22:04:59,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:04:59,051 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 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 161 [2021-12-15 22:04:59,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:04:59,060 INFO L225 Difference]: With dead ends: 6084 [2021-12-15 22:04:59,061 INFO L226 Difference]: Without dead ends: 3251 [2021-12-15 22:04:59,064 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:04:59,065 INFO L933 BasicCegarLoop]: 189 mSDtfsCounter, 128 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-15 22:04:59,065 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 200 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-15 22:04:59,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3251 states. [2021-12-15 22:04:59,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3251 to 3250. [2021-12-15 22:04:59,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3250 states, 3249 states have (on average 1.0624807633117883) internal successors, (3452), 3249 states have internal predecessors, (3452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:04:59,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3250 states to 3250 states and 3452 transitions. [2021-12-15 22:04:59,111 INFO L78 Accepts]: Start accepts. Automaton has 3250 states and 3452 transitions. Word has length 161 [2021-12-15 22:04:59,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:04:59,112 INFO L470 AbstractCegarLoop]: Abstraction has 3250 states and 3452 transitions. [2021-12-15 22:04:59,112 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:04:59,112 INFO L276 IsEmpty]: Start isEmpty. Operand 3250 states and 3452 transitions. [2021-12-15 22:04:59,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2021-12-15 22:04:59,116 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:04:59,116 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:04:59,116 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-15 22:04:59,116 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:04:59,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:04:59,117 INFO L85 PathProgramCache]: Analyzing trace with hash -1685234850, now seen corresponding path program 1 times [2021-12-15 22:04:59,117 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:04:59,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524406547] [2021-12-15 22:04:59,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:04:59,118 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:04:59,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:04:59,168 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2021-12-15 22:04:59,168 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:04:59,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524406547] [2021-12-15 22:04:59,169 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524406547] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:04:59,169 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:04:59,169 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 22:04:59,169 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019443700] [2021-12-15 22:04:59,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:04:59,170 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:04:59,170 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:04:59,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:04:59,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:04:59,171 INFO L87 Difference]: Start difference. First operand 3250 states and 3452 transitions. Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:04:59,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:04:59,487 INFO L93 Difference]: Finished difference Result 6498 states and 6902 transitions. [2021-12-15 22:04:59,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:04:59,487 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 187 [2021-12-15 22:04:59,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:04:59,496 INFO L225 Difference]: With dead ends: 6498 [2021-12-15 22:04:59,496 INFO L226 Difference]: Without dead ends: 3250 [2021-12-15 22:04:59,499 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:04:59,500 INFO L933 BasicCegarLoop]: 198 mSDtfsCounter, 139 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-15 22:04:59,501 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 211 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 322 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-15 22:04:59,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3250 states. [2021-12-15 22:04:59,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3250 to 3110. [2021-12-15 22:04:59,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3110 states, 3109 states have (on average 1.0604696043743969) internal successors, (3297), 3109 states have internal predecessors, (3297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:04:59,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3110 states to 3110 states and 3297 transitions. [2021-12-15 22:04:59,541 INFO L78 Accepts]: Start accepts. Automaton has 3110 states and 3297 transitions. Word has length 187 [2021-12-15 22:04:59,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:04:59,541 INFO L470 AbstractCegarLoop]: Abstraction has 3110 states and 3297 transitions. [2021-12-15 22:04:59,542 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:04:59,542 INFO L276 IsEmpty]: Start isEmpty. Operand 3110 states and 3297 transitions. [2021-12-15 22:04:59,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2021-12-15 22:04:59,546 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:04:59,546 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:04:59,546 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-15 22:04:59,546 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:04:59,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:04:59,547 INFO L85 PathProgramCache]: Analyzing trace with hash 1560166325, now seen corresponding path program 1 times [2021-12-15 22:04:59,547 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:04:59,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499029921] [2021-12-15 22:04:59,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:04:59,548 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:04:59,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:04:59,600 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-12-15 22:04:59,600 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:04:59,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499029921] [2021-12-15 22:04:59,600 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499029921] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:04:59,600 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:04:59,601 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 22:04:59,601 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686546382] [2021-12-15 22:04:59,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:04:59,601 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:04:59,602 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:04:59,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:04:59,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:04:59,602 INFO L87 Difference]: Start difference. First operand 3110 states and 3297 transitions. Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:04:59,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:04:59,921 INFO L93 Difference]: Finished difference Result 6638 states and 7045 transitions. [2021-12-15 22:04:59,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:04:59,922 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 200 [2021-12-15 22:04:59,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:04:59,931 INFO L225 Difference]: With dead ends: 6638 [2021-12-15 22:04:59,932 INFO L226 Difference]: Without dead ends: 3530 [2021-12-15 22:04:59,935 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:04:59,936 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 157 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-15 22:04:59,937 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 65 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-15 22:04:59,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3530 states. [2021-12-15 22:05:00,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3530 to 3109. [2021-12-15 22:05:00,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3109 states, 3108 states have (on average 1.057915057915058) internal successors, (3288), 3108 states have internal predecessors, (3288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:05:00,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3109 states to 3109 states and 3288 transitions. [2021-12-15 22:05:00,011 INFO L78 Accepts]: Start accepts. Automaton has 3109 states and 3288 transitions. Word has length 200 [2021-12-15 22:05:00,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:05:00,011 INFO L470 AbstractCegarLoop]: Abstraction has 3109 states and 3288 transitions. [2021-12-15 22:05:00,012 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:05:00,012 INFO L276 IsEmpty]: Start isEmpty. Operand 3109 states and 3288 transitions. [2021-12-15 22:05:00,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2021-12-15 22:05:00,019 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:05:00,019 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:05:00,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-15 22:05:00,019 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:05:00,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:05:00,020 INFO L85 PathProgramCache]: Analyzing trace with hash 1979281714, now seen corresponding path program 1 times [2021-12-15 22:05:00,020 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:05:00,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854876865] [2021-12-15 22:05:00,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:05:00,021 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:05:00,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:05:00,099 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 187 proven. 16 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-12-15 22:05:00,099 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:05:00,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854876865] [2021-12-15 22:05:00,100 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854876865] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 22:05:00,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [715634764] [2021-12-15 22:05:00,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:05:00,100 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 22:05:00,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 22:05:00,104 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-15 22:05:00,140 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-15 22:05:00,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:05:00,206 INFO L263 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-15 22:05:00,211 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 22:05:00,546 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 147 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2021-12-15 22:05:00,546 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 22:05:00,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [715634764] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:05:00,546 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-15 22:05:00,547 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-12-15 22:05:00,547 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767078777] [2021-12-15 22:05:00,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:05:00,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:05:00,548 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:05:00,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:05:00,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 22:05:00,549 INFO L87 Difference]: Start difference. First operand 3109 states and 3288 transitions. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:05:00,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:05:00,838 INFO L93 Difference]: Finished difference Result 5364 states and 5671 transitions. [2021-12-15 22:05:00,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:05:00,838 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 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 218 [2021-12-15 22:05:00,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:05:00,839 INFO L225 Difference]: With dead ends: 5364 [2021-12-15 22:05:00,839 INFO L226 Difference]: Without dead ends: 0 [2021-12-15 22:05:00,842 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 218 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 22:05:00,842 INFO L933 BasicCegarLoop]: 176 mSDtfsCounter, 67 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-15 22:05:00,842 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [67 Valid, 185 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-15 22:05:00,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-15 22:05:00,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-15 22:05:00,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:05:00,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-15 22:05:00,843 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 218 [2021-12-15 22:05:00,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:05:00,844 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-15 22:05:00,844 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:05:00,844 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-15 22:05:00,844 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-15 22:05:00,846 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-15 22:05:00,875 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-15 22:05:01,059 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,SelfDestructingSolverStorable12 [2021-12-15 22:05:01,061 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-15 22:05:01,651 INFO L858 garLoopResultBuilder]: For program point L565-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:05:01,652 INFO L858 garLoopResultBuilder]: For program point L499-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:05:01,653 INFO L858 garLoopResultBuilder]: For program point L433-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:05:01,653 INFO L858 garLoopResultBuilder]: For program point L301(lines 301 423) no Hoare annotation was computed. [2021-12-15 22:05:01,653 INFO L858 garLoopResultBuilder]: For program point L235(lines 235 423) no Hoare annotation was computed. [2021-12-15 22:05:01,653 INFO L858 garLoopResultBuilder]: For program point L169(lines 169 423) no Hoare annotation was computed. [2021-12-15 22:05:01,653 INFO L858 garLoopResultBuilder]: For program point L566(line 566) no Hoare annotation was computed. [2021-12-15 22:05:01,653 INFO L858 garLoopResultBuilder]: For program point L500(line 500) no Hoare annotation was computed. [2021-12-15 22:05:01,653 INFO L858 garLoopResultBuilder]: For program point L434(line 434) no Hoare annotation was computed. [2021-12-15 22:05:01,653 INFO L858 garLoopResultBuilder]: For program point L303(lines 303 423) no Hoare annotation was computed. [2021-12-15 22:05:01,653 INFO L858 garLoopResultBuilder]: For program point L105(lines 105 423) no Hoare annotation was computed. [2021-12-15 22:05:01,653 INFO L858 garLoopResultBuilder]: For program point L568-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:05:01,653 INFO L858 garLoopResultBuilder]: For program point L502-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:05:01,653 INFO L858 garLoopResultBuilder]: For program point L436-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:05:01,653 INFO L858 garLoopResultBuilder]: For program point L40(lines 40 423) no Hoare annotation was computed. [2021-12-15 22:05:01,653 INFO L858 garLoopResultBuilder]: For program point L569(line 569) no Hoare annotation was computed. [2021-12-15 22:05:01,653 INFO L858 garLoopResultBuilder]: For program point L503(line 503) no Hoare annotation was computed. [2021-12-15 22:05:01,654 INFO L858 garLoopResultBuilder]: For program point L437(line 437) no Hoare annotation was computed. [2021-12-15 22:05:01,654 INFO L858 garLoopResultBuilder]: For program point L371(lines 371 423) no Hoare annotation was computed. [2021-12-15 22:05:01,654 INFO L858 garLoopResultBuilder]: For program point L571-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:05:01,654 INFO L858 garLoopResultBuilder]: For program point L505-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:05:01,654 INFO L858 garLoopResultBuilder]: For program point L439-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:05:01,654 INFO L858 garLoopResultBuilder]: For program point L307(lines 307 423) no Hoare annotation was computed. [2021-12-15 22:05:01,654 INFO L858 garLoopResultBuilder]: For program point L175(lines 175 423) no Hoare annotation was computed. [2021-12-15 22:05:01,654 INFO L858 garLoopResultBuilder]: For program point L109(lines 109 423) no Hoare annotation was computed. [2021-12-15 22:05:01,654 INFO L858 garLoopResultBuilder]: For program point L572(line 572) no Hoare annotation was computed. [2021-12-15 22:05:01,654 INFO L858 garLoopResultBuilder]: For program point L506(line 506) no Hoare annotation was computed. [2021-12-15 22:05:01,654 INFO L858 garLoopResultBuilder]: For program point L440(line 440) no Hoare annotation was computed. [2021-12-15 22:05:01,654 INFO L858 garLoopResultBuilder]: For program point L308(lines 308 317) no Hoare annotation was computed. [2021-12-15 22:05:01,654 INFO L858 garLoopResultBuilder]: For program point L242(lines 242 423) no Hoare annotation was computed. [2021-12-15 22:05:01,654 INFO L858 garLoopResultBuilder]: For program point L308-2(lines 308 317) no Hoare annotation was computed. [2021-12-15 22:05:01,654 INFO L858 garLoopResultBuilder]: For program point L45(lines 45 423) no Hoare annotation was computed. [2021-12-15 22:05:01,655 INFO L858 garLoopResultBuilder]: For program point L574-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:05:01,655 INFO L858 garLoopResultBuilder]: For program point L508-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:05:01,655 INFO L858 garLoopResultBuilder]: For program point L442-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:05:01,655 INFO L858 garLoopResultBuilder]: For program point L244(lines 244 423) no Hoare annotation was computed. [2021-12-15 22:05:01,655 INFO L858 garLoopResultBuilder]: For program point L575(line 575) no Hoare annotation was computed. [2021-12-15 22:05:01,659 INFO L858 garLoopResultBuilder]: For program point L509(line 509) no Hoare annotation was computed. [2021-12-15 22:05:01,659 INFO L858 garLoopResultBuilder]: For program point L443(line 443) no Hoare annotation was computed. [2021-12-15 22:05:01,659 INFO L858 garLoopResultBuilder]: For program point L179(lines 179 423) no Hoare annotation was computed. [2021-12-15 22:05:01,659 INFO L858 garLoopResultBuilder]: For program point L378(lines 378 423) no Hoare annotation was computed. [2021-12-15 22:05:01,659 INFO L858 garLoopResultBuilder]: For program point L48(lines 48 423) no Hoare annotation was computed. [2021-12-15 22:05:01,660 INFO L858 garLoopResultBuilder]: For program point L577-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:05:01,660 INFO L858 garLoopResultBuilder]: For program point L511-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:05:01,660 INFO L858 garLoopResultBuilder]: For program point L445-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:05:01,660 INFO L858 garLoopResultBuilder]: For program point L247(lines 247 423) no Hoare annotation was computed. [2021-12-15 22:05:01,660 INFO L858 garLoopResultBuilder]: For program point L578(line 578) no Hoare annotation was computed. [2021-12-15 22:05:01,660 INFO L858 garLoopResultBuilder]: For program point L512(line 512) no Hoare annotation was computed. [2021-12-15 22:05:01,660 INFO L858 garLoopResultBuilder]: For program point L446(line 446) no Hoare annotation was computed. [2021-12-15 22:05:01,661 INFO L858 garLoopResultBuilder]: For program point L248(lines 248 256) no Hoare annotation was computed. [2021-12-15 22:05:01,661 INFO L858 garLoopResultBuilder]: For program point L248-2(lines 248 256) no Hoare annotation was computed. [2021-12-15 22:05:01,661 INFO L858 garLoopResultBuilder]: For program point L116(lines 116 423) no Hoare annotation was computed. [2021-12-15 22:05:01,661 INFO L858 garLoopResultBuilder]: For program point L580-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:05:01,661 INFO L858 garLoopResultBuilder]: For program point L514-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:05:01,661 INFO L858 garLoopResultBuilder]: For program point L448-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:05:01,662 INFO L858 garLoopResultBuilder]: For program point L52(lines 52 423) no Hoare annotation was computed. [2021-12-15 22:05:01,662 INFO L858 garLoopResultBuilder]: For program point L581(line 581) no Hoare annotation was computed. [2021-12-15 22:05:01,662 INFO L858 garLoopResultBuilder]: For program point L515(line 515) no Hoare annotation was computed. [2021-12-15 22:05:01,662 INFO L858 garLoopResultBuilder]: For program point L449(line 449) no Hoare annotation was computed. [2021-12-15 22:05:01,662 INFO L858 garLoopResultBuilder]: For program point L185(lines 185 423) no Hoare annotation was computed. [2021-12-15 22:05:01,662 INFO L858 garLoopResultBuilder]: For program point L583-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:05:01,663 INFO L858 garLoopResultBuilder]: For program point L517-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:05:01,663 INFO L858 garLoopResultBuilder]: For program point L451-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:05:01,663 INFO L858 garLoopResultBuilder]: For program point L385(lines 385 423) no Hoare annotation was computed. [2021-12-15 22:05:01,663 INFO L858 garLoopResultBuilder]: For program point L319(lines 319 423) no Hoare annotation was computed. [2021-12-15 22:05:01,663 INFO L858 garLoopResultBuilder]: For program point L584(line 584) no Hoare annotation was computed. [2021-12-15 22:05:01,664 INFO L858 garLoopResultBuilder]: For program point L518(line 518) no Hoare annotation was computed. [2021-12-15 22:05:01,664 INFO L858 garLoopResultBuilder]: For program point L452(line 452) no Hoare annotation was computed. [2021-12-15 22:05:01,664 INFO L858 garLoopResultBuilder]: For program point L189(lines 189 423) no Hoare annotation was computed. [2021-12-15 22:05:01,664 INFO L858 garLoopResultBuilder]: For program point L123(lines 123 423) no Hoare annotation was computed. [2021-12-15 22:05:01,664 INFO L858 garLoopResultBuilder]: For program point L57(lines 57 423) no Hoare annotation was computed. [2021-12-15 22:05:01,664 INFO L858 garLoopResultBuilder]: For program point L586-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:05:01,664 INFO L858 garLoopResultBuilder]: For program point L520-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:05:01,665 INFO L858 garLoopResultBuilder]: For program point L454-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:05:01,665 INFO L858 garLoopResultBuilder]: For program point L388(lines 388 423) no Hoare annotation was computed. [2021-12-15 22:05:01,665 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-15 22:05:01,666 INFO L858 garLoopResultBuilder]: For program point L587(line 587) no Hoare annotation was computed. [2021-12-15 22:05:01,666 INFO L858 garLoopResultBuilder]: For program point L521(line 521) no Hoare annotation was computed. [2021-12-15 22:05:01,666 INFO L858 garLoopResultBuilder]: For program point L455(line 455) no Hoare annotation was computed. [2021-12-15 22:05:01,666 INFO L858 garLoopResultBuilder]: For program point L390(lines 390 423) no Hoare annotation was computed. [2021-12-15 22:05:01,666 INFO L858 garLoopResultBuilder]: For program point L324(lines 324 423) no Hoare annotation was computed. [2021-12-15 22:05:01,666 INFO L858 garLoopResultBuilder]: For program point L258(lines 258 423) no Hoare annotation was computed. [2021-12-15 22:05:01,667 INFO L858 garLoopResultBuilder]: For program point L60(lines 60 423) no Hoare annotation was computed. [2021-12-15 22:05:01,667 INFO L858 garLoopResultBuilder]: For program point L589-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:05:01,667 INFO L858 garLoopResultBuilder]: For program point L523-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:05:01,667 INFO L858 garLoopResultBuilder]: For program point L457-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:05:01,667 INFO L858 garLoopResultBuilder]: For program point L391(lines 391 397) no Hoare annotation was computed. [2021-12-15 22:05:01,667 INFO L858 garLoopResultBuilder]: For program point L325(lines 325 336) no Hoare annotation was computed. [2021-12-15 22:05:01,667 INFO L858 garLoopResultBuilder]: For program point L391-2(lines 391 397) no Hoare annotation was computed. [2021-12-15 22:05:01,667 INFO L858 garLoopResultBuilder]: For program point L325-2(lines 325 336) no Hoare annotation was computed. [2021-12-15 22:05:01,668 INFO L858 garLoopResultBuilder]: For program point L590(line 590) no Hoare annotation was computed. [2021-12-15 22:05:01,668 INFO L858 garLoopResultBuilder]: For program point L524(line 524) no Hoare annotation was computed. [2021-12-15 22:05:01,668 INFO L858 garLoopResultBuilder]: For program point L458(line 458) no Hoare annotation was computed. [2021-12-15 22:05:01,668 INFO L858 garLoopResultBuilder]: For program point L195(lines 195 423) no Hoare annotation was computed. [2021-12-15 22:05:01,668 INFO L858 garLoopResultBuilder]: For program point L129(lines 129 423) no Hoare annotation was computed. [2021-12-15 22:05:01,668 INFO L858 garLoopResultBuilder]: For program point L592-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:05:01,668 INFO L858 garLoopResultBuilder]: For program point L526-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:05:01,669 INFO L858 garLoopResultBuilder]: For program point L460-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:05:01,669 INFO L858 garLoopResultBuilder]: For program point L64(lines 64 423) no Hoare annotation was computed. [2021-12-15 22:05:01,669 INFO L858 garLoopResultBuilder]: For program point L593(line 593) no Hoare annotation was computed. [2021-12-15 22:05:01,669 INFO L858 garLoopResultBuilder]: For program point L527(line 527) no Hoare annotation was computed. [2021-12-15 22:05:01,669 INFO L858 garLoopResultBuilder]: For program point L461(line 461) no Hoare annotation was computed. [2021-12-15 22:05:01,669 INFO L858 garLoopResultBuilder]: For program point L263(lines 263 423) no Hoare annotation was computed. [2021-12-15 22:05:01,669 INFO L858 garLoopResultBuilder]: For program point L197(lines 197 423) no Hoare annotation was computed. [2021-12-15 22:05:01,670 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-15 22:05:01,670 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 449) no Hoare annotation was computed. [2021-12-15 22:05:01,670 INFO L858 garLoopResultBuilder]: For program point L595-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:05:01,670 INFO L858 garLoopResultBuilder]: For program point L529-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:05:01,670 INFO L858 garLoopResultBuilder]: For program point L463-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:05:01,670 INFO L858 garLoopResultBuilder]: For program point L199(lines 199 423) no Hoare annotation was computed. [2021-12-15 22:05:01,670 INFO L858 garLoopResultBuilder]: For program point L133(lines 133 423) no Hoare annotation was computed. [2021-12-15 22:05:01,671 INFO L858 garLoopResultBuilder]: For program point L596(line 596) no Hoare annotation was computed. [2021-12-15 22:05:01,671 INFO L858 garLoopResultBuilder]: For program point L530(line 530) no Hoare annotation was computed. [2021-12-15 22:05:01,671 INFO L858 garLoopResultBuilder]: For program point L464(line 464) no Hoare annotation was computed. [2021-12-15 22:05:01,671 INFO L858 garLoopResultBuilder]: For program point L399(lines 399 423) no Hoare annotation was computed. [2021-12-15 22:05:01,671 INFO L858 garLoopResultBuilder]: For program point L201(lines 201 423) no Hoare annotation was computed. [2021-12-15 22:05:01,671 INFO L858 garLoopResultBuilder]: For program point L69(lines 69 423) no Hoare annotation was computed. [2021-12-15 22:05:01,671 INFO L858 garLoopResultBuilder]: For program point L598-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:05:01,671 INFO L858 garLoopResultBuilder]: For program point L532-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:05:01,672 INFO L858 garLoopResultBuilder]: For program point L466-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:05:01,672 INFO L858 garLoopResultBuilder]: For program point L599(line 599) no Hoare annotation was computed. [2021-12-15 22:05:01,672 INFO L858 garLoopResultBuilder]: For program point L533(line 533) no Hoare annotation was computed. [2021-12-15 22:05:01,672 INFO L858 garLoopResultBuilder]: For program point L467(line 467) no Hoare annotation was computed. [2021-12-15 22:05:01,673 INFO L858 garLoopResultBuilder]: For program point L269(lines 269 423) no Hoare annotation was computed. [2021-12-15 22:05:01,673 INFO L858 garLoopResultBuilder]: For program point L204(lines 204 423) no Hoare annotation was computed. [2021-12-15 22:05:01,673 INFO L858 garLoopResultBuilder]: For program point L601-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:05:01,673 INFO L858 garLoopResultBuilder]: For program point L535-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:05:01,673 INFO L858 garLoopResultBuilder]: For program point L469-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:05:01,673 INFO L858 garLoopResultBuilder]: For program point L271(lines 271 423) no Hoare annotation was computed. [2021-12-15 22:05:01,673 INFO L858 garLoopResultBuilder]: For program point L602(line 602) no Hoare annotation was computed. [2021-12-15 22:05:01,673 INFO L858 garLoopResultBuilder]: For program point L536(line 536) no Hoare annotation was computed. [2021-12-15 22:05:01,673 INFO L858 garLoopResultBuilder]: For program point L470(line 470) no Hoare annotation was computed. [2021-12-15 22:05:01,673 INFO L858 garLoopResultBuilder]: For program point L404(lines 404 423) no Hoare annotation was computed. [2021-12-15 22:05:01,673 INFO L858 garLoopResultBuilder]: For program point L338(lines 338 423) no Hoare annotation was computed. [2021-12-15 22:05:01,673 INFO L858 garLoopResultBuilder]: For program point L272(lines 272 284) no Hoare annotation was computed. [2021-12-15 22:05:01,673 INFO L858 garLoopResultBuilder]: For program point L272-2(lines 272 284) no Hoare annotation was computed. [2021-12-15 22:05:01,674 INFO L858 garLoopResultBuilder]: For program point L140(lines 140 423) no Hoare annotation was computed. [2021-12-15 22:05:01,674 INFO L858 garLoopResultBuilder]: For program point L75(lines 75 423) no Hoare annotation was computed. [2021-12-15 22:05:01,674 INFO L858 garLoopResultBuilder]: For program point L604-1(lines 604 606) no Hoare annotation was computed. [2021-12-15 22:05:01,674 INFO L858 garLoopResultBuilder]: For program point L538-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:05:01,674 INFO L858 garLoopResultBuilder]: For program point L472-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:05:01,674 INFO L858 garLoopResultBuilder]: For program point L208(lines 208 423) no Hoare annotation was computed. [2021-12-15 22:05:01,674 INFO L858 garLoopResultBuilder]: For program point L605(line 605) no Hoare annotation was computed. [2021-12-15 22:05:01,674 INFO L858 garLoopResultBuilder]: For program point L539(line 539) no Hoare annotation was computed. [2021-12-15 22:05:01,674 INFO L858 garLoopResultBuilder]: For program point L473(line 473) no Hoare annotation was computed. [2021-12-15 22:05:01,674 INFO L858 garLoopResultBuilder]: For program point L341(lines 341 423) no Hoare annotation was computed. [2021-12-15 22:05:01,674 INFO L858 garLoopResultBuilder]: For program point L408(lines 408 423) no Hoare annotation was computed. [2021-12-15 22:05:01,674 INFO L858 garLoopResultBuilder]: For program point L342(lines 342 345) no Hoare annotation was computed. [2021-12-15 22:05:01,674 INFO L858 garLoopResultBuilder]: For program point L342-2(lines 342 345) no Hoare annotation was computed. [2021-12-15 22:05:01,674 INFO L858 garLoopResultBuilder]: For program point L144(lines 144 423) no Hoare annotation was computed. [2021-12-15 22:05:01,675 INFO L854 garLoopResultBuilder]: At program point L607(lines 39 608) the Hoare annotation is: (let ((.cse8 (<= 9 ~a28~0)) (.cse3 (= ~a25~0 1)) (.cse4 (<= 10 ~a28~0)) (.cse9 (<= ~a28~0 9)) (.cse6 (<= ~a19~0 0)) (.cse0 (= ~a17~0 8)) (.cse1 (= ~a21~0 1)) (.cse2 (= ~a19~0 1)) (.cse7 (<= ~a28~0 7)) (.cse5 (= 0 ~a11~0)) (.cse10 (<= ~a25~0 0))) (or (and (not (= 1 ~a11~0)) .cse0 .cse1 .cse2 (= ~a28~0 10)) (and .cse3 .cse4 .cse5 .cse6) (and .cse7 .cse3 .cse5 .cse6) (and .cse0 .cse1 .cse2 .cse3 .cse8) (and .cse2 .cse3 .cse5) (and .cse2 .cse7 .cse3) (and .cse0 .cse1 .cse9 .cse2 .cse10 .cse8) (<= ~a17~0 7) (and .cse2 .cse3 .cse4) (and (<= 11 ~a28~0) .cse5 .cse6 .cse10) (and .cse9 .cse6 .cse10) (and .cse0 .cse1 .cse2 .cse7 .cse5 .cse10))) [2021-12-15 22:05:01,675 INFO L858 garLoopResultBuilder]: For program point L541-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:05:01,675 INFO L858 garLoopResultBuilder]: For program point L475-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:05:01,675 INFO L858 garLoopResultBuilder]: For program point L79(lines 79 423) no Hoare annotation was computed. [2021-12-15 22:05:01,675 INFO L858 garLoopResultBuilder]: For program point L542(line 542) no Hoare annotation was computed. [2021-12-15 22:05:01,675 INFO L858 garLoopResultBuilder]: For program point L476(line 476) no Hoare annotation was computed. [2021-12-15 22:05:01,676 INFO L858 garLoopResultBuilder]: For program point L212(lines 212 423) no Hoare annotation was computed. [2021-12-15 22:05:01,676 INFO L858 garLoopResultBuilder]: For program point L213(lines 213 220) no Hoare annotation was computed. [2021-12-15 22:05:01,676 INFO L858 garLoopResultBuilder]: For program point L213-2(lines 213 220) no Hoare annotation was computed. [2021-12-15 22:05:01,676 INFO L861 garLoopResultBuilder]: At program point L610(lines 610 627) the Hoare annotation is: true [2021-12-15 22:05:01,676 INFO L858 garLoopResultBuilder]: For program point L544-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:05:01,676 INFO L858 garLoopResultBuilder]: For program point L478-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:05:01,676 INFO L858 garLoopResultBuilder]: For program point L412(lines 412 423) no Hoare annotation was computed. [2021-12-15 22:05:01,677 INFO L858 garLoopResultBuilder]: For program point L545(line 545) no Hoare annotation was computed. [2021-12-15 22:05:01,677 INFO L858 garLoopResultBuilder]: For program point L479(line 479) no Hoare annotation was computed. [2021-12-15 22:05:01,677 INFO L858 garLoopResultBuilder]: For program point L347(lines 347 423) no Hoare annotation was computed. [2021-12-15 22:05:01,677 INFO L858 garLoopResultBuilder]: For program point L149(lines 149 423) no Hoare annotation was computed. [2021-12-15 22:05:01,677 INFO L858 garLoopResultBuilder]: For program point L414(lines 414 423) no Hoare annotation was computed. [2021-12-15 22:05:01,677 INFO L858 garLoopResultBuilder]: For program point L348(lines 348 357) no Hoare annotation was computed. [2021-12-15 22:05:01,677 INFO L858 garLoopResultBuilder]: For program point L348-2(lines 348 357) no Hoare annotation was computed. [2021-12-15 22:05:01,678 INFO L858 garLoopResultBuilder]: For program point L84(lines 84 423) no Hoare annotation was computed. [2021-12-15 22:05:01,678 INFO L858 garLoopResultBuilder]: For program point L547-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:05:01,678 INFO L858 garLoopResultBuilder]: For program point L481-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:05:01,678 INFO L858 garLoopResultBuilder]: For program point L85(lines 85 90) no Hoare annotation was computed. [2021-12-15 22:05:01,678 INFO L858 garLoopResultBuilder]: For program point L85-2(lines 85 90) no Hoare annotation was computed. [2021-12-15 22:05:01,678 INFO L858 garLoopResultBuilder]: For program point L548(line 548) no Hoare annotation was computed. [2021-12-15 22:05:01,678 INFO L858 garLoopResultBuilder]: For program point L482(line 482) no Hoare annotation was computed. [2021-12-15 22:05:01,678 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-15 22:05:01,679 INFO L858 garLoopResultBuilder]: For program point L417(lines 417 423) no Hoare annotation was computed. [2021-12-15 22:05:01,679 INFO L858 garLoopResultBuilder]: For program point L153(lines 153 423) no Hoare annotation was computed. [2021-12-15 22:05:01,679 INFO L854 garLoopResultBuilder]: At program point L616-2(lines 616 626) the Hoare annotation is: (let ((.cse8 (<= 9 ~a28~0)) (.cse3 (= ~a25~0 1)) (.cse4 (<= 10 ~a28~0)) (.cse9 (<= ~a28~0 9)) (.cse6 (<= ~a19~0 0)) (.cse0 (= ~a17~0 8)) (.cse1 (= ~a21~0 1)) (.cse2 (= ~a19~0 1)) (.cse7 (<= ~a28~0 7)) (.cse5 (= 0 ~a11~0)) (.cse10 (<= ~a25~0 0))) (or (and (not (= 1 ~a11~0)) .cse0 .cse1 .cse2 (= ~a28~0 10)) (and .cse3 .cse4 .cse5 .cse6) (and .cse7 .cse3 .cse5 .cse6) (and .cse0 .cse1 .cse2 .cse3 .cse8) (and .cse2 .cse3 .cse5) (and .cse2 .cse7 .cse3) (and .cse0 .cse1 .cse9 .cse2 .cse10 .cse8) (<= ~a17~0 7) (and .cse2 .cse3 .cse4) (and (<= 11 ~a28~0) .cse5 .cse6 .cse10) (and .cse9 .cse6 .cse10) (and .cse0 .cse1 .cse2 .cse7 .cse5 .cse10))) [2021-12-15 22:05:01,679 INFO L858 garLoopResultBuilder]: For program point L550-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:05:01,679 INFO L858 garLoopResultBuilder]: For program point L484-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:05:01,679 INFO L858 garLoopResultBuilder]: For program point L286(lines 286 423) no Hoare annotation was computed. [2021-12-15 22:05:01,680 INFO L858 garLoopResultBuilder]: For program point L551(line 551) no Hoare annotation was computed. [2021-12-15 22:05:01,680 INFO L858 garLoopResultBuilder]: For program point L485(line 485) no Hoare annotation was computed. [2021-12-15 22:05:01,680 INFO L858 garLoopResultBuilder]: For program point L419(lines 419 423) no Hoare annotation was computed. [2021-12-15 22:05:01,680 INFO L858 garLoopResultBuilder]: For program point L222(lines 222 423) no Hoare annotation was computed. [2021-12-15 22:05:01,680 INFO L858 garLoopResultBuilder]: For program point L553-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:05:01,680 INFO L858 garLoopResultBuilder]: For program point L487-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:05:01,680 INFO L858 garLoopResultBuilder]: For program point L554(line 554) no Hoare annotation was computed. [2021-12-15 22:05:01,680 INFO L858 garLoopResultBuilder]: For program point L488(line 488) no Hoare annotation was computed. [2021-12-15 22:05:01,681 INFO L858 garLoopResultBuilder]: For program point L290(lines 290 423) no Hoare annotation was computed. [2021-12-15 22:05:01,681 INFO L858 garLoopResultBuilder]: For program point L158(lines 158 423) no Hoare annotation was computed. [2021-12-15 22:05:01,681 INFO L858 garLoopResultBuilder]: For program point L92(lines 92 423) no Hoare annotation was computed. [2021-12-15 22:05:01,681 INFO L858 garLoopResultBuilder]: For program point L621(line 621) no Hoare annotation was computed. [2021-12-15 22:05:01,681 INFO L858 garLoopResultBuilder]: For program point L225(lines 225 423) no Hoare annotation was computed. [2021-12-15 22:05:01,681 INFO L858 garLoopResultBuilder]: For program point L93(lines 93 99) no Hoare annotation was computed. [2021-12-15 22:05:01,681 INFO L858 garLoopResultBuilder]: For program point L93-2(lines 93 99) no Hoare annotation was computed. [2021-12-15 22:05:01,682 INFO L858 garLoopResultBuilder]: For program point L556-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:05:01,682 INFO L858 garLoopResultBuilder]: For program point L490-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:05:01,682 INFO L858 garLoopResultBuilder]: For program point L424(lines 424 426) no Hoare annotation was computed. [2021-12-15 22:05:01,682 INFO L858 garLoopResultBuilder]: For program point L424-2(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:05:01,682 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-15 22:05:01,682 INFO L858 garLoopResultBuilder]: For program point L557(line 557) no Hoare annotation was computed. [2021-12-15 22:05:01,682 INFO L858 garLoopResultBuilder]: For program point L491(line 491) no Hoare annotation was computed. [2021-12-15 22:05:01,682 INFO L858 garLoopResultBuilder]: For program point L425(line 425) no Hoare annotation was computed. [2021-12-15 22:05:01,683 INFO L858 garLoopResultBuilder]: For program point L359(lines 359 423) no Hoare annotation was computed. [2021-12-15 22:05:01,683 INFO L858 garLoopResultBuilder]: For program point L293(lines 293 423) no Hoare annotation was computed. [2021-12-15 22:05:01,683 INFO L858 garLoopResultBuilder]: For program point L228(lines 228 423) no Hoare annotation was computed. [2021-12-15 22:05:01,683 INFO L858 garLoopResultBuilder]: For program point L559-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:05:01,683 INFO L858 garLoopResultBuilder]: For program point L493-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:05:01,683 INFO L858 garLoopResultBuilder]: For program point L427-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:05:01,683 INFO L858 garLoopResultBuilder]: For program point L560(line 560) no Hoare annotation was computed. [2021-12-15 22:05:01,684 INFO L858 garLoopResultBuilder]: For program point L494(line 494) no Hoare annotation was computed. [2021-12-15 22:05:01,684 INFO L858 garLoopResultBuilder]: For program point L428(line 428) no Hoare annotation was computed. [2021-12-15 22:05:01,684 INFO L858 garLoopResultBuilder]: For program point L296(lines 296 423) no Hoare annotation was computed. [2021-12-15 22:05:01,684 INFO L858 garLoopResultBuilder]: For program point L164(lines 164 423) no Hoare annotation was computed. [2021-12-15 22:05:01,684 INFO L858 garLoopResultBuilder]: For program point L562-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:05:01,684 INFO L858 garLoopResultBuilder]: For program point L496-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:05:01,684 INFO L858 garLoopResultBuilder]: For program point L430-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:05:01,685 INFO L858 garLoopResultBuilder]: For program point L364(lines 364 423) no Hoare annotation was computed. [2021-12-15 22:05:01,685 INFO L858 garLoopResultBuilder]: For program point L563(line 563) no Hoare annotation was computed. [2021-12-15 22:05:01,685 INFO L858 garLoopResultBuilder]: For program point L497(line 497) no Hoare annotation was computed. [2021-12-15 22:05:01,685 INFO L858 garLoopResultBuilder]: For program point L431(line 431) no Hoare annotation was computed. [2021-12-15 22:05:01,685 INFO L858 garLoopResultBuilder]: For program point L233(lines 233 423) no Hoare annotation was computed. [2021-12-15 22:05:01,685 INFO L858 garLoopResultBuilder]: For program point L101(lines 101 423) no Hoare annotation was computed. [2021-12-15 22:05:01,688 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:05:01,690 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-15 22:05:01,714 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 10:05:01 BoogieIcfgContainer [2021-12-15 22:05:01,716 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-15 22:05:01,716 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-15 22:05:01,716 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-15 22:05:01,717 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-15 22:05:01,717 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:04:52" (3/4) ... [2021-12-15 22:05:01,719 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-15 22:05:01,738 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-12-15 22:05:01,743 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-15 22:05:01,744 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-15 22:05:01,745 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-15 22:05:01,837 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-15 22:05:01,838 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-15 22:05:01,838 INFO L158 Benchmark]: Toolchain (without parser) took 11036.62ms. Allocated memory was 94.4MB in the beginning and 220.2MB in the end (delta: 125.8MB). Free memory was 58.3MB in the beginning and 73.1MB in the end (delta: -14.8MB). Peak memory consumption was 109.7MB. Max. memory is 16.1GB. [2021-12-15 22:05:01,839 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 94.4MB. Free memory was 66.9MB in the beginning and 66.9MB in the end (delta: 26.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 22:05:01,839 INFO L158 Benchmark]: CACSL2BoogieTranslator took 444.43ms. Allocated memory is still 94.4MB. Free memory was 58.1MB in the beginning and 54.7MB in the end (delta: 3.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-15 22:05:01,839 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.18ms. Allocated memory is still 94.4MB. Free memory was 54.7MB in the beginning and 49.5MB in the end (delta: 5.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-15 22:05:01,839 INFO L158 Benchmark]: Boogie Preprocessor took 88.09ms. Allocated memory is still 94.4MB. Free memory was 49.1MB in the beginning and 45.3MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-15 22:05:01,840 INFO L158 Benchmark]: RCFGBuilder took 813.19ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 45.3MB in the beginning and 43.6MB in the end (delta: 1.7MB). Peak memory consumption was 22.2MB. Max. memory is 16.1GB. [2021-12-15 22:05:01,840 INFO L158 Benchmark]: TraceAbstraction took 9485.15ms. Allocated memory was 113.2MB in the beginning and 220.2MB in the end (delta: 107.0MB). Free memory was 43.6MB in the beginning and 87.8MB in the end (delta: -44.3MB). Peak memory consumption was 92.9MB. Max. memory is 16.1GB. [2021-12-15 22:05:01,840 INFO L158 Benchmark]: Witness Printer took 121.54ms. Allocated memory is still 220.2MB. Free memory was 87.8MB in the beginning and 73.1MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-15 22:05:01,842 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 94.4MB. Free memory was 66.9MB in the beginning and 66.9MB in the end (delta: 26.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 444.43ms. Allocated memory is still 94.4MB. Free memory was 58.1MB in the beginning and 54.7MB in the end (delta: 3.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.18ms. Allocated memory is still 94.4MB. Free memory was 54.7MB in the beginning and 49.5MB in the end (delta: 5.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 88.09ms. Allocated memory is still 94.4MB. Free memory was 49.1MB in the beginning and 45.3MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 813.19ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 45.3MB in the beginning and 43.6MB in the end (delta: 1.7MB). Peak memory consumption was 22.2MB. Max. memory is 16.1GB. * TraceAbstraction took 9485.15ms. Allocated memory was 113.2MB in the beginning and 220.2MB in the end (delta: 107.0MB). Free memory was 43.6MB in the beginning and 87.8MB in the end (delta: -44.3MB). Peak memory consumption was 92.9MB. Max. memory is 16.1GB. * Witness Printer took 121.54ms. Allocated memory is still 220.2MB. Free memory was 87.8MB in the beginning and 73.1MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 449]: 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, 227 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 9.4s, OverallIterations: 13, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 5.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1981 SdHoareTripleChecker+Valid, 4.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1981 mSDsluCounter, 2015 SdHoareTripleChecker+Invalid, 3.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 263 mSDsCounter, 830 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5304 IncrementalHoareTripleChecker+Invalid, 6134 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 830 mSolverCounterUnsat, 1752 mSDtfsCounter, 5304 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 373 GetRequests, 350 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3250occurred in iteration=10, InterpolantAutomatonStates: 44, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 13 MinimizatonAttempts, 768 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 71 NumberOfFragments, 309 HoareAnnotationTreeSize, 3 FomulaSimplifications, 256 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 3 FomulaSimplificationsInter, 1388 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 2158 NumberOfCodeBlocks, 2158 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 2143 ConstructedInterpolants, 0 QuantifiedInterpolants, 6888 SizeOfPredicates, 0 NumberOfNonLiveVariables, 657 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 15 InterpolantComputations, 13 PerfectInterpolantSequences, 1219/1251 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: 616]: Loop Invariant Derived loop invariant: ((((((((((((((!(1 == a11) && a17 == 8) && a21 == 1) && a19 == 1) && a28 == 10) || (((a25 == 1 && 10 <= a28) && 0 == a11) && a19 <= 0)) || (((a28 <= 7 && a25 == 1) && 0 == a11) && a19 <= 0)) || ((((a17 == 8 && a21 == 1) && a19 == 1) && a25 == 1) && 9 <= a28)) || ((a19 == 1 && a25 == 1) && 0 == a11)) || ((a19 == 1 && a28 <= 7) && a25 == 1)) || (((((a17 == 8 && a21 == 1) && a28 <= 9) && a19 == 1) && a25 <= 0) && 9 <= a28)) || a17 <= 7) || ((a19 == 1 && a25 == 1) && 10 <= a28)) || (((11 <= a28 && 0 == a11) && a19 <= 0) && a25 <= 0)) || ((a28 <= 9 && a19 <= 0) && a25 <= 0)) || (((((a17 == 8 && a21 == 1) && a19 == 1) && a28 <= 7) && 0 == a11) && a25 <= 0) - InvariantResult [Line: 610]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: ((((((((((((((!(1 == a11) && a17 == 8) && a21 == 1) && a19 == 1) && a28 == 10) || (((a25 == 1 && 10 <= a28) && 0 == a11) && a19 <= 0)) || (((a28 <= 7 && a25 == 1) && 0 == a11) && a19 <= 0)) || ((((a17 == 8 && a21 == 1) && a19 == 1) && a25 == 1) && 9 <= a28)) || ((a19 == 1 && a25 == 1) && 0 == a11)) || ((a19 == 1 && a28 <= 7) && a25 == 1)) || (((((a17 == 8 && a21 == 1) && a28 <= 9) && a19 == 1) && a25 <= 0) && 9 <= a28)) || a17 <= 7) || ((a19 == 1 && a25 == 1) && 10 <= a28)) || (((11 <= a28 && 0 == a11) && a19 <= 0) && a25 <= 0)) || ((a28 <= 9 && a19 <= 0) && a25 <= 0)) || (((((a17 == 8 && a21 == 1) && a19 == 1) && a28 <= 7) && 0 == a11) && a25 <= 0) RESULT: Ultimate proved your program to be correct! [2021-12-15 22:05:01,879 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE