./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-66.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/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/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-66.i -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 --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 d1d83a7aa7482f86e6852a22c01d45006c9d5171e3bfe65b1880a039304a6026 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 12:47:30,447 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 12:47:30,578 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 12:47:30,586 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 12:47:30,586 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 12:47:30,616 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 12:47:30,617 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 12:47:30,617 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 12:47:30,618 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 12:47:30,619 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 12:47:30,619 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 12:47:30,620 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 12:47:30,620 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 12:47:30,620 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 12:47:30,621 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 12:47:30,621 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 12:47:30,621 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 12:47:30,622 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 12:47:30,622 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 12:47:30,624 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 12:47:30,625 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 12:47:30,625 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 12:47:30,625 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 12:47:30,625 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 12:47:30,626 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 12:47:30,628 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 12:47:30,628 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 12:47:30,628 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 12:47:30,629 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 12:47:30,629 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 12:47:30,630 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 12:47:30,630 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 12:47:30,630 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 12:47:30,631 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 12:47:30,631 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 12:47:30,631 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 12:47:30,631 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 12:47:30,631 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 12:47:30,632 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 12:47:30,632 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 12:47:30,632 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 12:47:30,632 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 12:47:30,632 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d1d83a7aa7482f86e6852a22c01d45006c9d5171e3bfe65b1880a039304a6026 [2024-11-22 12:47:30,883 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 12:47:30,907 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 12:47:30,910 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 12:47:30,911 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 12:47:30,911 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 12:47:30,912 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-66.i [2024-11-22 12:47:32,265 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 12:47:32,488 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 12:47:32,489 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-66.i [2024-11-22 12:47:32,499 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03740a5e3/b75113e3b446417da050d8327042c4e3/FLAG84f3ce7a2 [2024-11-22 12:47:32,836 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03740a5e3/b75113e3b446417da050d8327042c4e3 [2024-11-22 12:47:32,838 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 12:47:32,839 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 12:47:32,841 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 12:47:32,841 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 12:47:32,846 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 12:47:32,847 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:47:32" (1/1) ... [2024-11-22 12:47:32,850 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bccc506 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:47:32, skipping insertion in model container [2024-11-22 12:47:32,850 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:47:32" (1/1) ... [2024-11-22 12:47:32,877 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 12:47:33,080 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-66.i[917,930] [2024-11-22 12:47:33,241 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 12:47:33,251 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 12:47:33,263 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-66.i[917,930] [2024-11-22 12:47:33,294 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 12:47:33,319 INFO L204 MainTranslator]: Completed translation [2024-11-22 12:47:33,319 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:47:33 WrapperNode [2024-11-22 12:47:33,319 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 12:47:33,320 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 12:47:33,320 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 12:47:33,320 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 12:47:33,325 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:47:33" (1/1) ... [2024-11-22 12:47:33,337 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:47:33" (1/1) ... [2024-11-22 12:47:33,382 INFO L138 Inliner]: procedures = 26, calls = 153, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 446 [2024-11-22 12:47:33,383 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 12:47:33,384 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 12:47:33,384 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 12:47:33,384 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 12:47:33,392 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:47:33" (1/1) ... [2024-11-22 12:47:33,393 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:47:33" (1/1) ... [2024-11-22 12:47:33,400 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:47:33" (1/1) ... [2024-11-22 12:47:33,425 INFO L175 MemorySlicer]: Split 123 memory accesses to 6 slices as follows [2, 8, 8, 73, 7, 25]. 59 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 1, 1, 6, 1, 3]. The 16 writes are split as follows [0, 1, 3, 7, 1, 4]. [2024-11-22 12:47:33,425 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:47:33" (1/1) ... [2024-11-22 12:47:33,426 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:47:33" (1/1) ... [2024-11-22 12:47:33,438 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:47:33" (1/1) ... [2024-11-22 12:47:33,442 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:47:33" (1/1) ... [2024-11-22 12:47:33,445 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:47:33" (1/1) ... [2024-11-22 12:47:33,447 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:47:33" (1/1) ... [2024-11-22 12:47:33,451 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 12:47:33,452 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 12:47:33,452 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 12:47:33,453 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 12:47:33,453 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:47:33" (1/1) ... [2024-11-22 12:47:33,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 12:47:33,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 12:47:33,493 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-22 12:47:33,496 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-22 12:47:33,544 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 12:47:33,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-22 12:47:33,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-22 12:47:33,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-22 12:47:33,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-22 12:47:33,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-22 12:47:33,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-22 12:47:33,545 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-22 12:47:33,545 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-22 12:47:33,545 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-22 12:47:33,545 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-22 12:47:33,545 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-22 12:47:33,545 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-22 12:47:33,546 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-22 12:47:33,546 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-22 12:47:33,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 12:47:33,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-22 12:47:33,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-22 12:47:33,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-22 12:47:33,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-22 12:47:33,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-22 12:47:33,546 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 12:47:33,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 12:47:33,683 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 12:47:33,685 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 12:47:34,153 INFO L? ?]: Removed 107 outVars from TransFormulas that were not future-live. [2024-11-22 12:47:34,154 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 12:47:34,169 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 12:47:34,169 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 12:47:34,170 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:47:34 BoogieIcfgContainer [2024-11-22 12:47:34,170 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 12:47:34,172 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 12:47:34,172 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 12:47:34,175 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 12:47:34,175 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:47:32" (1/3) ... [2024-11-22 12:47:34,176 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77107554 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:47:34, skipping insertion in model container [2024-11-22 12:47:34,176 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:47:33" (2/3) ... [2024-11-22 12:47:34,176 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77107554 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:47:34, skipping insertion in model container [2024-11-22 12:47:34,176 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:47:34" (3/3) ... [2024-11-22 12:47:34,178 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-ap_file-66.i [2024-11-22 12:47:34,191 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 12:47:34,191 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 12:47:34,250 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 12:47:34,256 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4db8e76, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 12:47:34,256 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 12:47:34,260 INFO L276 IsEmpty]: Start isEmpty. Operand has 86 states, 69 states have (on average 1.4057971014492754) internal successors, (97), 70 states have internal predecessors, (97), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-22 12:47:34,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-22 12:47:34,271 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:47:34,272 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:47:34,272 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:47:34,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:47:34,277 INFO L85 PathProgramCache]: Analyzing trace with hash 566813761, now seen corresponding path program 1 times [2024-11-22 12:47:34,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:47:34,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735641049] [2024-11-22 12:47:34,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:47:34,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:47:34,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:47:34,645 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2024-11-22 12:47:34,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:47:34,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735641049] [2024-11-22 12:47:34,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735641049] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 12:47:34,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1050257953] [2024-11-22 12:47:34,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:47:34,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 12:47:34,650 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 12:47:34,652 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) [2024-11-22 12:47:34,653 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 12:47:34,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:47:34,917 INFO L255 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-22 12:47:34,928 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 12:47:34,949 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2024-11-22 12:47:34,949 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 12:47:34,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1050257953] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:47:34,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 12:47:34,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-22 12:47:34,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915898139] [2024-11-22 12:47:34,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:47:34,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 12:47:34,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:47:34,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 12:47:34,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 12:47:34,982 INFO L87 Difference]: Start difference. First operand has 86 states, 69 states have (on average 1.4057971014492754) internal successors, (97), 70 states have internal predecessors, (97), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 12:47:35,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:47:35,006 INFO L93 Difference]: Finished difference Result 165 states and 258 transitions. [2024-11-22 12:47:35,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 12:47:35,008 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 109 [2024-11-22 12:47:35,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:47:35,015 INFO L225 Difference]: With dead ends: 165 [2024-11-22 12:47:35,016 INFO L226 Difference]: Without dead ends: 82 [2024-11-22 12:47:35,019 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 12:47:35,022 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 12:47:35,025 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 12:47:35,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2024-11-22 12:47:35,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2024-11-22 12:47:35,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 66 states have (on average 1.3636363636363635) internal successors, (90), 66 states have internal predecessors, (90), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-22 12:47:35,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 118 transitions. [2024-11-22 12:47:35,068 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 118 transitions. Word has length 109 [2024-11-22 12:47:35,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:47:35,069 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 118 transitions. [2024-11-22 12:47:35,069 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 12:47:35,069 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 118 transitions. [2024-11-22 12:47:35,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-22 12:47:35,073 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:47:35,073 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:47:35,083 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-22 12:47:35,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-22 12:47:35,274 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:47:35,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:47:35,275 INFO L85 PathProgramCache]: Analyzing trace with hash 584676645, now seen corresponding path program 1 times [2024-11-22 12:47:35,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:47:35,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662749305] [2024-11-22 12:47:35,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:47:35,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:47:35,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:47:35,575 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-22 12:47:35,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:47:35,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662749305] [2024-11-22 12:47:35,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662749305] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:47:35,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:47:35,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 12:47:35,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249515040] [2024-11-22 12:47:35,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:47:35,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 12:47:35,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:47:35,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 12:47:35,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 12:47:35,579 INFO L87 Difference]: Start difference. First operand 82 states and 118 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-22 12:47:35,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:47:35,622 INFO L93 Difference]: Finished difference Result 164 states and 237 transitions. [2024-11-22 12:47:35,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 12:47:35,623 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 109 [2024-11-22 12:47:35,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:47:35,625 INFO L225 Difference]: With dead ends: 164 [2024-11-22 12:47:35,625 INFO L226 Difference]: Without dead ends: 85 [2024-11-22 12:47:35,626 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 12:47:35,629 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 1 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 12:47:35,630 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 334 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 12:47:35,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2024-11-22 12:47:35,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 84. [2024-11-22 12:47:35,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 68 states have (on average 1.3529411764705883) internal successors, (92), 68 states have internal predecessors, (92), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-22 12:47:35,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 120 transitions. [2024-11-22 12:47:35,643 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 120 transitions. Word has length 109 [2024-11-22 12:47:35,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:47:35,644 INFO L471 AbstractCegarLoop]: Abstraction has 84 states and 120 transitions. [2024-11-22 12:47:35,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-22 12:47:35,645 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 120 transitions. [2024-11-22 12:47:35,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-22 12:47:35,646 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:47:35,647 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:47:35,647 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 12:47:35,647 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:47:35,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:47:35,648 INFO L85 PathProgramCache]: Analyzing trace with hash -1935283289, now seen corresponding path program 1 times [2024-11-22 12:47:35,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:47:35,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540295272] [2024-11-22 12:47:35,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:47:35,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:47:35,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:47:35,923 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-22 12:47:35,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:47:35,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540295272] [2024-11-22 12:47:35,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540295272] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:47:35,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:47:35,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 12:47:35,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688958086] [2024-11-22 12:47:35,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:47:35,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 12:47:35,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:47:35,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 12:47:35,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 12:47:35,926 INFO L87 Difference]: Start difference. First operand 84 states and 120 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-22 12:47:35,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:47:35,964 INFO L93 Difference]: Finished difference Result 168 states and 241 transitions. [2024-11-22 12:47:35,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 12:47:35,965 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 109 [2024-11-22 12:47:35,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:47:35,967 INFO L225 Difference]: With dead ends: 168 [2024-11-22 12:47:35,967 INFO L226 Difference]: Without dead ends: 87 [2024-11-22 12:47:35,969 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 12:47:35,970 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 1 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 12:47:35,971 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 337 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 12:47:35,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-11-22 12:47:35,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 86. [2024-11-22 12:47:35,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 70 states have (on average 1.3428571428571427) internal successors, (94), 70 states have internal predecessors, (94), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-22 12:47:35,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 122 transitions. [2024-11-22 12:47:35,983 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 122 transitions. Word has length 109 [2024-11-22 12:47:35,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:47:35,983 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 122 transitions. [2024-11-22 12:47:35,983 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-22 12:47:35,984 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 122 transitions. [2024-11-22 12:47:35,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-22 12:47:35,985 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:47:35,985 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:47:35,985 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 12:47:35,985 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:47:35,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:47:35,986 INFO L85 PathProgramCache]: Analyzing trace with hash -1933436247, now seen corresponding path program 1 times [2024-11-22 12:47:35,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:47:35,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978091555] [2024-11-22 12:47:35,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:47:35,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:47:36,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:47:39,228 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-22 12:47:39,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:47:39,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978091555] [2024-11-22 12:47:39,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978091555] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:47:39,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:47:39,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-22 12:47:39,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080343929] [2024-11-22 12:47:39,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:47:39,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-22 12:47:39,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:47:39,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-22 12:47:39,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-22 12:47:39,233 INFO L87 Difference]: Start difference. First operand 86 states and 122 transitions. Second operand has 13 states, 13 states have (on average 3.230769230769231) internal successors, (42), 13 states have internal predecessors, (42), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 12:47:41,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:47:41,324 INFO L93 Difference]: Finished difference Result 402 states and 564 transitions. [2024-11-22 12:47:41,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-22 12:47:41,324 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.230769230769231) internal successors, (42), 13 states have internal predecessors, (42), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 109 [2024-11-22 12:47:41,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:47:41,329 INFO L225 Difference]: With dead ends: 402 [2024-11-22 12:47:41,332 INFO L226 Difference]: Without dead ends: 319 [2024-11-22 12:47:41,334 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=136, Invalid=514, Unknown=0, NotChecked=0, Total=650 [2024-11-22 12:47:41,335 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 486 mSDsluCounter, 616 mSDsCounter, 0 mSdLazyCounter, 734 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 486 SdHoareTripleChecker+Valid, 695 SdHoareTripleChecker+Invalid, 799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-22 12:47:41,335 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [486 Valid, 695 Invalid, 799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 734 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-22 12:47:41,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2024-11-22 12:47:41,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 178. [2024-11-22 12:47:41,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 144 states have (on average 1.3333333333333333) internal successors, (192), 145 states have internal predecessors, (192), 30 states have call successors, (30), 3 states have call predecessors, (30), 3 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-22 12:47:41,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 252 transitions. [2024-11-22 12:47:41,389 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 252 transitions. Word has length 109 [2024-11-22 12:47:41,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:47:41,390 INFO L471 AbstractCegarLoop]: Abstraction has 178 states and 252 transitions. [2024-11-22 12:47:41,391 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.230769230769231) internal successors, (42), 13 states have internal predecessors, (42), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 12:47:41,391 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 252 transitions. [2024-11-22 12:47:41,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-22 12:47:41,396 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:47:41,397 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:47:41,397 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 12:47:41,397 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:47:41,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:47:41,397 INFO L85 PathProgramCache]: Analyzing trace with hash 1774725035, now seen corresponding path program 1 times [2024-11-22 12:47:41,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:47:41,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469347990] [2024-11-22 12:47:41,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:47:41,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:47:41,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:47:41,928 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-22 12:47:41,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:47:41,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469347990] [2024-11-22 12:47:41,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469347990] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:47:41,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:47:41,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 12:47:41,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324205459] [2024-11-22 12:47:41,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:47:41,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 12:47:41,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:47:41,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 12:47:41,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-22 12:47:41,935 INFO L87 Difference]: Start difference. First operand 178 states and 252 transitions. Second operand has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-22 12:47:42,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:47:42,374 INFO L93 Difference]: Finished difference Result 479 states and 665 transitions. [2024-11-22 12:47:42,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 12:47:42,375 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 109 [2024-11-22 12:47:42,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:47:42,378 INFO L225 Difference]: With dead ends: 479 [2024-11-22 12:47:42,378 INFO L226 Difference]: Without dead ends: 356 [2024-11-22 12:47:42,379 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2024-11-22 12:47:42,380 INFO L432 NwaCegarLoop]: 121 mSDtfsCounter, 299 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 12:47:42,380 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [299 Valid, 428 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 12:47:42,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2024-11-22 12:47:42,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 188. [2024-11-22 12:47:42,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 153 states have (on average 1.326797385620915) internal successors, (203), 154 states have internal predecessors, (203), 30 states have call successors, (30), 4 states have call predecessors, (30), 4 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-22 12:47:42,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 263 transitions. [2024-11-22 12:47:42,408 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 263 transitions. Word has length 109 [2024-11-22 12:47:42,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:47:42,409 INFO L471 AbstractCegarLoop]: Abstraction has 188 states and 263 transitions. [2024-11-22 12:47:42,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-22 12:47:42,409 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 263 transitions. [2024-11-22 12:47:42,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-22 12:47:42,410 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:47:42,411 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:47:42,411 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 12:47:42,411 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:47:42,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:47:42,411 INFO L85 PathProgramCache]: Analyzing trace with hash 773183147, now seen corresponding path program 1 times [2024-11-22 12:47:42,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:47:42,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373544191] [2024-11-22 12:47:42,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:47:42,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:47:42,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:47:42,808 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-22 12:47:42,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:47:42,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373544191] [2024-11-22 12:47:42,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373544191] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:47:42,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:47:42,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 12:47:42,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792148320] [2024-11-22 12:47:42,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:47:42,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 12:47:42,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:47:42,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 12:47:42,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 12:47:42,810 INFO L87 Difference]: Start difference. First operand 188 states and 263 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-22 12:47:43,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:47:43,107 INFO L93 Difference]: Finished difference Result 364 states and 506 transitions. [2024-11-22 12:47:43,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 12:47:43,108 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 109 [2024-11-22 12:47:43,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:47:43,110 INFO L225 Difference]: With dead ends: 364 [2024-11-22 12:47:43,110 INFO L226 Difference]: Without dead ends: 235 [2024-11-22 12:47:43,110 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-22 12:47:43,111 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 196 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 12:47:43,111 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 360 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 12:47:43,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2024-11-22 12:47:43,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 146. [2024-11-22 12:47:43,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 113 states have (on average 1.2743362831858407) internal successors, (144), 113 states have internal predecessors, (144), 28 states have call successors, (28), 4 states have call predecessors, (28), 4 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-22 12:47:43,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 200 transitions. [2024-11-22 12:47:43,136 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 200 transitions. Word has length 109 [2024-11-22 12:47:43,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:47:43,136 INFO L471 AbstractCegarLoop]: Abstraction has 146 states and 200 transitions. [2024-11-22 12:47:43,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-22 12:47:43,137 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 200 transitions. [2024-11-22 12:47:43,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-22 12:47:43,138 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:47:43,138 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:47:43,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 12:47:43,138 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:47:43,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:47:43,139 INFO L85 PathProgramCache]: Analyzing trace with hash 186377133, now seen corresponding path program 1 times [2024-11-22 12:47:43,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:47:43,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262648145] [2024-11-22 12:47:43,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:47:43,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:47:43,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:47:43,917 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-22 12:47:43,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:47:43,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262648145] [2024-11-22 12:47:43,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262648145] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:47:43,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:47:43,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 12:47:43,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825823519] [2024-11-22 12:47:43,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:47:43,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 12:47:43,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:47:43,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 12:47:43,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-22 12:47:43,920 INFO L87 Difference]: Start difference. First operand 146 states and 200 transitions. Second operand has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-22 12:47:44,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:47:44,280 INFO L93 Difference]: Finished difference Result 302 states and 414 transitions. [2024-11-22 12:47:44,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 12:47:44,282 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 109 [2024-11-22 12:47:44,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:47:44,284 INFO L225 Difference]: With dead ends: 302 [2024-11-22 12:47:44,284 INFO L226 Difference]: Without dead ends: 209 [2024-11-22 12:47:44,285 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-11-22 12:47:44,287 INFO L432 NwaCegarLoop]: 182 mSDtfsCounter, 143 mSDsluCounter, 472 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 654 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 12:47:44,288 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 654 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 12:47:44,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2024-11-22 12:47:44,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 206. [2024-11-22 12:47:44,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 161 states have (on average 1.2732919254658386) internal successors, (205), 162 states have internal predecessors, (205), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-22 12:47:44,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 281 transitions. [2024-11-22 12:47:44,347 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 281 transitions. Word has length 109 [2024-11-22 12:47:44,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:47:44,348 INFO L471 AbstractCegarLoop]: Abstraction has 206 states and 281 transitions. [2024-11-22 12:47:44,348 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-22 12:47:44,348 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 281 transitions. [2024-11-22 12:47:44,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-22 12:47:44,350 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:47:44,350 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:47:44,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 12:47:44,350 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:47:44,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:47:44,351 INFO L85 PathProgramCache]: Analyzing trace with hash 716307048, now seen corresponding path program 1 times [2024-11-22 12:47:44,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:47:44,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789512096] [2024-11-22 12:47:44,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:47:44,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:47:44,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:47:46,037 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-22 12:47:46,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:47:46,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789512096] [2024-11-22 12:47:46,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789512096] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:47:46,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:47:46,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-22 12:47:46,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600798639] [2024-11-22 12:47:46,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:47:46,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-22 12:47:46,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:47:46,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-22 12:47:46,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2024-11-22 12:47:46,040 INFO L87 Difference]: Start difference. First operand 206 states and 281 transitions. Second operand has 14 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 14 states have internal predecessors, (43), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-22 12:47:47,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:47:47,731 INFO L93 Difference]: Finished difference Result 555 states and 749 transitions. [2024-11-22 12:47:47,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-22 12:47:47,732 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 14 states have internal predecessors, (43), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 110 [2024-11-22 12:47:47,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:47:47,734 INFO L225 Difference]: With dead ends: 555 [2024-11-22 12:47:47,734 INFO L226 Difference]: Without dead ends: 402 [2024-11-22 12:47:47,737 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=253, Invalid=803, Unknown=0, NotChecked=0, Total=1056 [2024-11-22 12:47:47,738 INFO L432 NwaCegarLoop]: 76 mSDtfsCounter, 913 mSDsluCounter, 412 mSDsCounter, 0 mSdLazyCounter, 630 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 913 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-22 12:47:47,739 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [913 Valid, 488 Invalid, 729 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 630 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-22 12:47:47,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2024-11-22 12:47:47,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 156. [2024-11-22 12:47:47,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 127 states have (on average 1.2992125984251968) internal successors, (165), 128 states have internal predecessors, (165), 24 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-22 12:47:47,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 213 transitions. [2024-11-22 12:47:47,780 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 213 transitions. Word has length 110 [2024-11-22 12:47:47,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:47:47,781 INFO L471 AbstractCegarLoop]: Abstraction has 156 states and 213 transitions. [2024-11-22 12:47:47,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 14 states have internal predecessors, (43), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-22 12:47:47,781 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 213 transitions. [2024-11-22 12:47:47,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-22 12:47:47,783 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:47:47,783 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:47:47,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 12:47:47,784 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:47:47,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:47:47,787 INFO L85 PathProgramCache]: Analyzing trace with hash 1854810605, now seen corresponding path program 1 times [2024-11-22 12:47:47,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:47:47,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330425917] [2024-11-22 12:47:47,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:47:47,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:47:47,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:47:47,850 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-22 12:47:47,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:47:47,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330425917] [2024-11-22 12:47:47,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330425917] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:47:47,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:47:47,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 12:47:47,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535608435] [2024-11-22 12:47:47,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:47:47,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 12:47:47,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:47:47,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 12:47:47,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 12:47:47,852 INFO L87 Difference]: Start difference. First operand 156 states and 213 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-22 12:47:47,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:47:47,891 INFO L93 Difference]: Finished difference Result 311 states and 427 transitions. [2024-11-22 12:47:47,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 12:47:47,891 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 112 [2024-11-22 12:47:47,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:47:47,893 INFO L225 Difference]: With dead ends: 311 [2024-11-22 12:47:47,893 INFO L226 Difference]: Without dead ends: 158 [2024-11-22 12:47:47,893 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 12:47:47,894 INFO L432 NwaCegarLoop]: 116 mSDtfsCounter, 0 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 12:47:47,894 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 225 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 12:47:47,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2024-11-22 12:47:47,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2024-11-22 12:47:47,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 129 states have (on average 1.2945736434108528) internal successors, (167), 130 states have internal predecessors, (167), 24 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-22 12:47:47,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 215 transitions. [2024-11-22 12:47:47,926 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 215 transitions. Word has length 112 [2024-11-22 12:47:47,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:47:47,927 INFO L471 AbstractCegarLoop]: Abstraction has 158 states and 215 transitions. [2024-11-22 12:47:47,927 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-22 12:47:47,927 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 215 transitions. [2024-11-22 12:47:47,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-22 12:47:47,928 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:47:47,928 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:47:47,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 12:47:47,928 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:47:47,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:47:47,929 INFO L85 PathProgramCache]: Analyzing trace with hash 1268004591, now seen corresponding path program 1 times [2024-11-22 12:47:47,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:47:47,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354126891] [2024-11-22 12:47:47,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:47:47,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:47:47,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:47:48,066 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-22 12:47:48,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:47:48,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354126891] [2024-11-22 12:47:48,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354126891] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 12:47:48,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1914748431] [2024-11-22 12:47:48,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:47:48,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 12:47:48,068 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 12:47:48,070 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) [2024-11-22 12:47:48,071 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 12:47:48,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:47:48,241 INFO L255 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-22 12:47:48,245 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 12:47:48,278 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-22 12:47:48,278 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 12:47:48,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1914748431] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:47:48,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 12:47:48,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 8 [2024-11-22 12:47:48,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362644289] [2024-11-22 12:47:48,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:47:48,279 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 12:47:48,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:47:48,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 12:47:48,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-22 12:47:48,280 INFO L87 Difference]: Start difference. First operand 158 states and 215 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-22 12:47:48,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:47:48,332 INFO L93 Difference]: Finished difference Result 319 states and 435 transitions. [2024-11-22 12:47:48,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 12:47:48,333 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 112 [2024-11-22 12:47:48,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:47:48,334 INFO L225 Difference]: With dead ends: 319 [2024-11-22 12:47:48,334 INFO L226 Difference]: Without dead ends: 164 [2024-11-22 12:47:48,335 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-22 12:47:48,335 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 0 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 12:47:48,335 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 440 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 12:47:48,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2024-11-22 12:47:48,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 164. [2024-11-22 12:47:48,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 135 states have (on average 1.2814814814814814) internal successors, (173), 136 states have internal predecessors, (173), 24 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-22 12:47:48,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 221 transitions. [2024-11-22 12:47:48,376 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 221 transitions. Word has length 112 [2024-11-22 12:47:48,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:47:48,377 INFO L471 AbstractCegarLoop]: Abstraction has 164 states and 221 transitions. [2024-11-22 12:47:48,377 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-22 12:47:48,377 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 221 transitions. [2024-11-22 12:47:48,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-22 12:47:48,378 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:47:48,378 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:47:48,388 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-22 12:47:48,579 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-22 12:47:48,580 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:47:48,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:47:48,581 INFO L85 PathProgramCache]: Analyzing trace with hash 344134130, now seen corresponding path program 1 times [2024-11-22 12:47:48,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:47:48,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225771824] [2024-11-22 12:47:48,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:47:48,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:47:48,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:47:48,789 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-22 12:47:48,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:47:48,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225771824] [2024-11-22 12:47:48,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225771824] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:47:48,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:47:48,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 12:47:48,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381062877] [2024-11-22 12:47:48,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:47:48,792 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 12:47:48,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:47:48,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 12:47:48,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 12:47:48,793 INFO L87 Difference]: Start difference. First operand 164 states and 221 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-22 12:47:48,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:47:48,964 INFO L93 Difference]: Finished difference Result 411 states and 557 transitions. [2024-11-22 12:47:48,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 12:47:48,965 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 114 [2024-11-22 12:47:48,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:47:48,967 INFO L225 Difference]: With dead ends: 411 [2024-11-22 12:47:48,969 INFO L226 Difference]: Without dead ends: 250 [2024-11-22 12:47:48,969 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 12:47:48,970 INFO L432 NwaCegarLoop]: 94 mSDtfsCounter, 46 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 12:47:48,970 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 333 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 12:47:48,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2024-11-22 12:47:49,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 184. [2024-11-22 12:47:49,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 155 states have (on average 1.2903225806451613) internal successors, (200), 156 states have internal predecessors, (200), 24 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-22 12:47:49,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 248 transitions. [2024-11-22 12:47:49,004 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 248 transitions. Word has length 114 [2024-11-22 12:47:49,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:47:49,007 INFO L471 AbstractCegarLoop]: Abstraction has 184 states and 248 transitions. [2024-11-22 12:47:49,007 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-22 12:47:49,007 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 248 transitions. [2024-11-22 12:47:49,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-22 12:47:49,008 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:47:49,008 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:47:49,008 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 12:47:49,008 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:47:49,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:47:49,009 INFO L85 PathProgramCache]: Analyzing trace with hash -935729548, now seen corresponding path program 1 times [2024-11-22 12:47:49,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:47:49,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341845248] [2024-11-22 12:47:49,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:47:49,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:47:49,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:47:49,372 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-22 12:47:49,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:47:49,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341845248] [2024-11-22 12:47:49,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341845248] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:47:49,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:47:49,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 12:47:49,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196191096] [2024-11-22 12:47:49,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:47:49,374 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 12:47:49,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:47:49,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 12:47:49,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-22 12:47:49,375 INFO L87 Difference]: Start difference. First operand 184 states and 248 transitions. Second operand has 8 states, 7 states have (on average 6.714285714285714) internal successors, (47), 8 states have internal predecessors, (47), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-22 12:47:49,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:47:49,567 INFO L93 Difference]: Finished difference Result 409 states and 550 transitions. [2024-11-22 12:47:49,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 12:47:49,568 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.714285714285714) internal successors, (47), 8 states have internal predecessors, (47), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 114 [2024-11-22 12:47:49,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:47:49,571 INFO L225 Difference]: With dead ends: 409 [2024-11-22 12:47:49,571 INFO L226 Difference]: Without dead ends: 228 [2024-11-22 12:47:49,571 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-22 12:47:49,572 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 223 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 12:47:49,572 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 363 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 12:47:49,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2024-11-22 12:47:49,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 186. [2024-11-22 12:47:49,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 157 states have (on average 1.286624203821656) internal successors, (202), 158 states have internal predecessors, (202), 24 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-22 12:47:49,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 250 transitions. [2024-11-22 12:47:49,608 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 250 transitions. Word has length 114 [2024-11-22 12:47:49,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:47:49,608 INFO L471 AbstractCegarLoop]: Abstraction has 186 states and 250 transitions. [2024-11-22 12:47:49,609 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.714285714285714) internal successors, (47), 8 states have internal predecessors, (47), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-22 12:47:49,609 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 250 transitions. [2024-11-22 12:47:49,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-22 12:47:49,610 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:47:49,610 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:47:49,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 12:47:49,610 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:47:49,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:47:49,611 INFO L85 PathProgramCache]: Analyzing trace with hash -339499770, now seen corresponding path program 1 times [2024-11-22 12:47:49,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:47:49,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213275878] [2024-11-22 12:47:49,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:47:49,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:47:49,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:47:50,265 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-22 12:47:50,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:47:50,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213275878] [2024-11-22 12:47:50,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213275878] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:47:50,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:47:50,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-22 12:47:50,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941289369] [2024-11-22 12:47:50,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:47:50,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 12:47:50,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:47:50,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 12:47:50,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-22 12:47:50,269 INFO L87 Difference]: Start difference. First operand 186 states and 250 transitions. Second operand has 10 states, 10 states have (on average 4.7) internal successors, (47), 10 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-22 12:47:50,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:47:50,936 INFO L93 Difference]: Finished difference Result 518 states and 685 transitions. [2024-11-22 12:47:50,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-22 12:47:50,937 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.7) internal successors, (47), 10 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 114 [2024-11-22 12:47:50,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:47:50,939 INFO L225 Difference]: With dead ends: 518 [2024-11-22 12:47:50,939 INFO L226 Difference]: Without dead ends: 335 [2024-11-22 12:47:50,940 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=89, Invalid=331, Unknown=0, NotChecked=0, Total=420 [2024-11-22 12:47:50,942 INFO L432 NwaCegarLoop]: 89 mSDtfsCounter, 212 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 622 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 12:47:50,942 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 622 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 12:47:50,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2024-11-22 12:47:50,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 239. [2024-11-22 12:47:50,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 210 states have (on average 1.3095238095238095) internal successors, (275), 211 states have internal predecessors, (275), 24 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-22 12:47:50,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 323 transitions. [2024-11-22 12:47:50,978 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 323 transitions. Word has length 114 [2024-11-22 12:47:50,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:47:50,979 INFO L471 AbstractCegarLoop]: Abstraction has 239 states and 323 transitions. [2024-11-22 12:47:50,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.7) internal successors, (47), 10 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-22 12:47:50,979 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 323 transitions. [2024-11-22 12:47:50,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-22 12:47:50,981 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:47:50,981 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:47:50,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 12:47:50,981 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:47:50,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:47:50,982 INFO L85 PathProgramCache]: Analyzing trace with hash -337652728, now seen corresponding path program 1 times [2024-11-22 12:47:50,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:47:50,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706325510] [2024-11-22 12:47:50,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:47:50,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:47:51,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:47:51,553 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-22 12:47:51,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:47:51,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706325510] [2024-11-22 12:47:51,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706325510] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:47:51,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:47:51,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-22 12:47:51,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330785309] [2024-11-22 12:47:51,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:47:51,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 12:47:51,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:47:51,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 12:47:51,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-22 12:47:51,555 INFO L87 Difference]: Start difference. First operand 239 states and 323 transitions. Second operand has 9 states, 8 states have (on average 5.875) internal successors, (47), 9 states have internal predecessors, (47), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-22 12:47:51,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:47:51,908 INFO L93 Difference]: Finished difference Result 524 states and 700 transitions. [2024-11-22 12:47:51,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 12:47:51,909 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.875) internal successors, (47), 9 states have internal predecessors, (47), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 114 [2024-11-22 12:47:51,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:47:51,910 INFO L225 Difference]: With dead ends: 524 [2024-11-22 12:47:51,912 INFO L226 Difference]: Without dead ends: 288 [2024-11-22 12:47:51,912 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2024-11-22 12:47:51,913 INFO L432 NwaCegarLoop]: 89 mSDtfsCounter, 292 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 12:47:51,913 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [292 Valid, 356 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 12:47:51,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2024-11-22 12:47:51,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 251. [2024-11-22 12:47:51,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 222 states have (on average 1.3063063063063063) internal successors, (290), 223 states have internal predecessors, (290), 24 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-22 12:47:51,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 338 transitions. [2024-11-22 12:47:51,948 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 338 transitions. Word has length 114 [2024-11-22 12:47:51,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:47:51,948 INFO L471 AbstractCegarLoop]: Abstraction has 251 states and 338 transitions. [2024-11-22 12:47:51,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.875) internal successors, (47), 9 states have internal predecessors, (47), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-22 12:47:51,949 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 338 transitions. [2024-11-22 12:47:51,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-22 12:47:51,950 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:47:51,950 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:47:51,950 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-22 12:47:51,950 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:47:51,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:47:51,951 INFO L85 PathProgramCache]: Analyzing trace with hash 1437354634, now seen corresponding path program 1 times [2024-11-22 12:47:51,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:47:51,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868457642] [2024-11-22 12:47:51,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:47:51,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:47:51,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:47:52,247 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-22 12:47:52,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:47:52,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868457642] [2024-11-22 12:47:52,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868457642] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:47:52,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:47:52,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 12:47:52,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908213519] [2024-11-22 12:47:52,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:47:52,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 12:47:52,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:47:52,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 12:47:52,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 12:47:52,249 INFO L87 Difference]: Start difference. First operand 251 states and 338 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-22 12:47:52,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:47:52,410 INFO L93 Difference]: Finished difference Result 720 states and 960 transitions. [2024-11-22 12:47:52,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 12:47:52,411 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 114 [2024-11-22 12:47:52,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:47:52,415 INFO L225 Difference]: With dead ends: 720 [2024-11-22 12:47:52,415 INFO L226 Difference]: Without dead ends: 472 [2024-11-22 12:47:52,417 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-22 12:47:52,417 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 72 mSDsluCounter, 508 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 649 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 12:47:52,417 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 649 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 12:47:52,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2024-11-22 12:47:52,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 324. [2024-11-22 12:47:52,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 295 states have (on average 1.3016949152542372) internal successors, (384), 296 states have internal predecessors, (384), 24 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-22 12:47:52,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 432 transitions. [2024-11-22 12:47:52,464 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 432 transitions. Word has length 114 [2024-11-22 12:47:52,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:47:52,464 INFO L471 AbstractCegarLoop]: Abstraction has 324 states and 432 transitions. [2024-11-22 12:47:52,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-22 12:47:52,464 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 432 transitions. [2024-11-22 12:47:52,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-22 12:47:52,465 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:47:52,466 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:47:52,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-22 12:47:52,466 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:47:52,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:47:52,467 INFO L85 PathProgramCache]: Analyzing trace with hash -1567346285, now seen corresponding path program 1 times [2024-11-22 12:47:52,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:47:52,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64255793] [2024-11-22 12:47:52,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:47:52,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:47:52,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:47:52,882 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-22 12:47:52,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:47:52,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64255793] [2024-11-22 12:47:52,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64255793] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:47:52,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:47:52,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 12:47:52,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662291560] [2024-11-22 12:47:52,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:47:52,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 12:47:52,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:47:52,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 12:47:52,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 12:47:52,884 INFO L87 Difference]: Start difference. First operand 324 states and 432 transitions. Second operand has 8 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-22 12:47:53,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:47:53,250 INFO L93 Difference]: Finished difference Result 697 states and 918 transitions. [2024-11-22 12:47:53,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-22 12:47:53,251 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 115 [2024-11-22 12:47:53,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:47:53,253 INFO L225 Difference]: With dead ends: 697 [2024-11-22 12:47:53,253 INFO L226 Difference]: Without dead ends: 376 [2024-11-22 12:47:53,254 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2024-11-22 12:47:53,254 INFO L432 NwaCegarLoop]: 109 mSDtfsCounter, 163 mSDsluCounter, 454 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 12:47:53,255 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 563 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 12:47:53,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2024-11-22 12:47:53,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 326. [2024-11-22 12:47:53,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 297 states have (on average 1.2996632996632997) internal successors, (386), 298 states have internal predecessors, (386), 24 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-22 12:47:53,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 434 transitions. [2024-11-22 12:47:53,303 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 434 transitions. Word has length 115 [2024-11-22 12:47:53,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:47:53,303 INFO L471 AbstractCegarLoop]: Abstraction has 326 states and 434 transitions. [2024-11-22 12:47:53,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-22 12:47:53,303 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 434 transitions. [2024-11-22 12:47:53,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-22 12:47:53,305 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:47:53,305 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:47:53,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-22 12:47:53,305 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:47:53,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:47:53,306 INFO L85 PathProgramCache]: Analyzing trace with hash 2045834153, now seen corresponding path program 1 times [2024-11-22 12:47:53,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:47:53,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525357517] [2024-11-22 12:47:53,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:47:53,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:47:53,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:47:54,460 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-22 12:47:54,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:47:54,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525357517] [2024-11-22 12:47:54,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525357517] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:47:54,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:47:54,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-22 12:47:54,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57538435] [2024-11-22 12:47:54,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:47:54,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-22 12:47:54,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:47:54,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-22 12:47:54,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2024-11-22 12:47:54,463 INFO L87 Difference]: Start difference. First operand 326 states and 434 transitions. Second operand has 15 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 15 states have internal predecessors, (48), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-22 12:47:55,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:47:55,461 INFO L93 Difference]: Finished difference Result 958 states and 1275 transitions. [2024-11-22 12:47:55,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-22 12:47:55,461 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 15 states have internal predecessors, (48), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 6 states have call successors, (14) Word has length 115 [2024-11-22 12:47:55,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:47:55,464 INFO L225 Difference]: With dead ends: 958 [2024-11-22 12:47:55,464 INFO L226 Difference]: Without dead ends: 635 [2024-11-22 12:47:55,465 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=126, Invalid=380, Unknown=0, NotChecked=0, Total=506 [2024-11-22 12:47:55,466 INFO L432 NwaCegarLoop]: 94 mSDtfsCounter, 307 mSDsluCounter, 731 mSDsCounter, 0 mSdLazyCounter, 718 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 307 SdHoareTripleChecker+Valid, 825 SdHoareTripleChecker+Invalid, 818 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 718 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 12:47:55,466 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [307 Valid, 825 Invalid, 818 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 718 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 12:47:55,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635 states. [2024-11-22 12:47:55,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635 to 415. [2024-11-22 12:47:55,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 370 states have (on average 1.2945945945945947) internal successors, (479), 371 states have internal predecessors, (479), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-22 12:47:55,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 555 transitions. [2024-11-22 12:47:55,532 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 555 transitions. Word has length 115 [2024-11-22 12:47:55,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:47:55,532 INFO L471 AbstractCegarLoop]: Abstraction has 415 states and 555 transitions. [2024-11-22 12:47:55,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 15 states have internal predecessors, (48), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-22 12:47:55,532 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 555 transitions. [2024-11-22 12:47:55,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-22 12:47:55,534 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:47:55,534 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:47:55,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-22 12:47:55,534 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:47:55,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:47:55,535 INFO L85 PathProgramCache]: Analyzing trace with hash 1424966114, now seen corresponding path program 1 times [2024-11-22 12:47:55,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:47:55,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057326771] [2024-11-22 12:47:55,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:47:55,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:47:55,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:47:55,708 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-22 12:47:55,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:47:55,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057326771] [2024-11-22 12:47:55,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057326771] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:47:55,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:47:55,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 12:47:55,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010689741] [2024-11-22 12:47:55,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:47:55,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 12:47:55,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:47:55,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 12:47:55,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 12:47:55,710 INFO L87 Difference]: Start difference. First operand 415 states and 555 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-22 12:47:55,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:47:55,813 INFO L93 Difference]: Finished difference Result 762 states and 1011 transitions. [2024-11-22 12:47:55,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 12:47:55,814 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 116 [2024-11-22 12:47:55,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:47:55,816 INFO L225 Difference]: With dead ends: 762 [2024-11-22 12:47:55,817 INFO L226 Difference]: Without dead ends: 439 [2024-11-22 12:47:55,817 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 12:47:55,818 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 39 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 427 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 12:47:55,818 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 427 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 12:47:55,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2024-11-22 12:47:55,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 415. [2024-11-22 12:47:55,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 370 states have (on average 1.2891891891891891) internal successors, (477), 371 states have internal predecessors, (477), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-22 12:47:55,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 553 transitions. [2024-11-22 12:47:55,877 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 553 transitions. Word has length 116 [2024-11-22 12:47:55,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:47:55,877 INFO L471 AbstractCegarLoop]: Abstraction has 415 states and 553 transitions. [2024-11-22 12:47:55,877 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-22 12:47:55,877 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 553 transitions. [2024-11-22 12:47:55,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-22 12:47:55,879 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:47:55,879 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:47:55,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-22 12:47:55,879 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:47:55,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:47:55,879 INFO L85 PathProgramCache]: Analyzing trace with hash 1847667940, now seen corresponding path program 1 times [2024-11-22 12:47:55,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:47:55,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116167076] [2024-11-22 12:47:55,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:47:55,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:47:55,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:47:56,313 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-22 12:47:56,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:47:56,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116167076] [2024-11-22 12:47:56,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116167076] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:47:56,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:47:56,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 12:47:56,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61547579] [2024-11-22 12:47:56,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:47:56,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 12:47:56,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:47:56,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 12:47:56,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 12:47:56,315 INFO L87 Difference]: Start difference. First operand 415 states and 553 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-22 12:47:56,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:47:56,671 INFO L93 Difference]: Finished difference Result 777 states and 1029 transitions. [2024-11-22 12:47:56,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 12:47:56,672 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 116 [2024-11-22 12:47:56,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:47:56,674 INFO L225 Difference]: With dead ends: 777 [2024-11-22 12:47:56,674 INFO L226 Difference]: Without dead ends: 454 [2024-11-22 12:47:56,675 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-22 12:47:56,675 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 166 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 12:47:56,676 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 479 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 12:47:56,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2024-11-22 12:47:56,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 415. [2024-11-22 12:47:56,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 370 states have (on average 1.2756756756756757) internal successors, (472), 371 states have internal predecessors, (472), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-22 12:47:56,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 548 transitions. [2024-11-22 12:47:56,737 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 548 transitions. Word has length 116 [2024-11-22 12:47:56,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:47:56,737 INFO L471 AbstractCegarLoop]: Abstraction has 415 states and 548 transitions. [2024-11-22 12:47:56,738 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-22 12:47:56,738 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 548 transitions. [2024-11-22 12:47:56,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-22 12:47:56,739 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:47:56,739 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:47:56,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-22 12:47:56,740 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:47:56,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:47:56,740 INFO L85 PathProgramCache]: Analyzing trace with hash -469997672, now seen corresponding path program 1 times [2024-11-22 12:47:56,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:47:56,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200705669] [2024-11-22 12:47:56,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:47:56,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:47:56,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:47:57,040 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-22 12:47:57,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:47:57,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200705669] [2024-11-22 12:47:57,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200705669] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:47:57,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:47:57,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 12:47:57,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431879530] [2024-11-22 12:47:57,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:47:57,043 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 12:47:57,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:47:57,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 12:47:57,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-22 12:47:57,044 INFO L87 Difference]: Start difference. First operand 415 states and 548 transitions. Second operand has 8 states, 7 states have (on average 7.142857142857143) internal successors, (50), 8 states have internal predecessors, (50), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-22 12:47:57,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:47:57,250 INFO L93 Difference]: Finished difference Result 762 states and 997 transitions. [2024-11-22 12:47:57,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 12:47:57,251 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.142857142857143) internal successors, (50), 8 states have internal predecessors, (50), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 117 [2024-11-22 12:47:57,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:47:57,253 INFO L225 Difference]: With dead ends: 762 [2024-11-22 12:47:57,253 INFO L226 Difference]: Without dead ends: 439 [2024-11-22 12:47:57,256 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-22 12:47:57,257 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 179 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 12:47:57,257 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 441 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 12:47:57,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2024-11-22 12:47:57,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 415. [2024-11-22 12:47:57,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 370 states have (on average 1.2702702702702702) internal successors, (470), 371 states have internal predecessors, (470), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-22 12:47:57,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 546 transitions. [2024-11-22 12:47:57,320 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 546 transitions. Word has length 117 [2024-11-22 12:47:57,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:47:57,321 INFO L471 AbstractCegarLoop]: Abstraction has 415 states and 546 transitions. [2024-11-22 12:47:57,322 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.142857142857143) internal successors, (50), 8 states have internal predecessors, (50), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-22 12:47:57,322 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 546 transitions. [2024-11-22 12:47:57,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-22 12:47:57,323 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:47:57,323 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:47:57,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-22 12:47:57,323 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:47:57,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:47:57,324 INFO L85 PathProgramCache]: Analyzing trace with hash -211832234, now seen corresponding path program 1 times [2024-11-22 12:47:57,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:47:57,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686844899] [2024-11-22 12:47:57,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:47:57,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:47:57,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:47:57,754 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-22 12:47:57,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:47:57,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686844899] [2024-11-22 12:47:57,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686844899] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:47:57,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:47:57,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 12:47:57,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408823176] [2024-11-22 12:47:57,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:47:57,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 12:47:57,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:47:57,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 12:47:57,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 12:47:57,757 INFO L87 Difference]: Start difference. First operand 415 states and 546 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-22 12:47:58,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:47:58,124 INFO L93 Difference]: Finished difference Result 759 states and 988 transitions. [2024-11-22 12:47:58,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 12:47:58,125 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 117 [2024-11-22 12:47:58,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:47:58,127 INFO L225 Difference]: With dead ends: 759 [2024-11-22 12:47:58,127 INFO L226 Difference]: Without dead ends: 436 [2024-11-22 12:47:58,128 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-22 12:47:58,128 INFO L432 NwaCegarLoop]: 101 mSDtfsCounter, 187 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 12:47:58,129 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 381 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 12:47:58,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2024-11-22 12:47:58,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 409. [2024-11-22 12:47:58,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 364 states have (on average 1.2582417582417582) internal successors, (458), 365 states have internal predecessors, (458), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-22 12:47:58,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 534 transitions. [2024-11-22 12:47:58,190 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 534 transitions. Word has length 117 [2024-11-22 12:47:58,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:47:58,191 INFO L471 AbstractCegarLoop]: Abstraction has 409 states and 534 transitions. [2024-11-22 12:47:58,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-22 12:47:58,191 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 534 transitions. [2024-11-22 12:47:58,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-22 12:47:58,192 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:47:58,192 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:47:58,192 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-22 12:47:58,192 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:47:58,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:47:58,193 INFO L85 PathProgramCache]: Analyzing trace with hash -2100578900, now seen corresponding path program 1 times [2024-11-22 12:47:58,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:47:58,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954108219] [2024-11-22 12:47:58,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:47:58,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:47:58,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:47:59,029 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-22 12:47:59,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:47:59,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954108219] [2024-11-22 12:47:59,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954108219] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:47:59,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:47:59,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-22 12:47:59,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133165213] [2024-11-22 12:47:59,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:47:59,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 12:47:59,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:47:59,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 12:47:59,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-22 12:47:59,032 INFO L87 Difference]: Start difference. First operand 409 states and 534 transitions. Second operand has 10 states, 9 states have (on average 5.555555555555555) internal successors, (50), 10 states have internal predecessors, (50), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-22 12:47:59,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:47:59,386 INFO L93 Difference]: Finished difference Result 726 states and 944 transitions. [2024-11-22 12:47:59,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 12:47:59,387 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.555555555555555) internal successors, (50), 10 states have internal predecessors, (50), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 117 [2024-11-22 12:47:59,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:47:59,389 INFO L225 Difference]: With dead ends: 726 [2024-11-22 12:47:59,389 INFO L226 Difference]: Without dead ends: 409 [2024-11-22 12:47:59,390 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2024-11-22 12:47:59,392 INFO L432 NwaCegarLoop]: 85 mSDtfsCounter, 294 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 12:47:59,392 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [294 Valid, 310 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 12:47:59,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2024-11-22 12:47:59,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 393. [2024-11-22 12:47:59,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 348 states have (on average 1.2528735632183907) internal successors, (436), 349 states have internal predecessors, (436), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-22 12:47:59,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 512 transitions. [2024-11-22 12:47:59,452 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 512 transitions. Word has length 117 [2024-11-22 12:47:59,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:47:59,452 INFO L471 AbstractCegarLoop]: Abstraction has 393 states and 512 transitions. [2024-11-22 12:47:59,452 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.555555555555555) internal successors, (50), 10 states have internal predecessors, (50), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-22 12:47:59,452 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 512 transitions. [2024-11-22 12:47:59,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-22 12:47:59,454 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:47:59,454 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:47:59,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-22 12:47:59,455 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:47:59,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:47:59,456 INFO L85 PathProgramCache]: Analyzing trace with hash -1293632746, now seen corresponding path program 1 times [2024-11-22 12:47:59,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:47:59,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157130382] [2024-11-22 12:47:59,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:47:59,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:47:59,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:47:59,738 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-22 12:47:59,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:47:59,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157130382] [2024-11-22 12:47:59,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157130382] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:47:59,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:47:59,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 12:47:59,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856321530] [2024-11-22 12:47:59,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:47:59,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 12:47:59,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:47:59,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 12:47:59,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-22 12:47:59,742 INFO L87 Difference]: Start difference. First operand 393 states and 512 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-22 12:48:00,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:48:00,078 INFO L93 Difference]: Finished difference Result 958 states and 1224 transitions. [2024-11-22 12:48:00,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 12:48:00,079 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 118 [2024-11-22 12:48:00,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:48:00,082 INFO L225 Difference]: With dead ends: 958 [2024-11-22 12:48:00,082 INFO L226 Difference]: Without dead ends: 657 [2024-11-22 12:48:00,083 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-11-22 12:48:00,083 INFO L432 NwaCegarLoop]: 116 mSDtfsCounter, 110 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 12:48:00,083 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 480 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 12:48:00,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 657 states. [2024-11-22 12:48:00,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 657 to 403. [2024-11-22 12:48:00,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 358 states have (on average 1.2458100558659218) internal successors, (446), 359 states have internal predecessors, (446), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-22 12:48:00,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 522 transitions. [2024-11-22 12:48:00,140 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 522 transitions. Word has length 118 [2024-11-22 12:48:00,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:48:00,140 INFO L471 AbstractCegarLoop]: Abstraction has 403 states and 522 transitions. [2024-11-22 12:48:00,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-22 12:48:00,140 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 522 transitions. [2024-11-22 12:48:00,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-22 12:48:00,142 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:48:00,142 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:48:00,142 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-22 12:48:00,142 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:48:00,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:48:00,143 INFO L85 PathProgramCache]: Analyzing trace with hash 1007189844, now seen corresponding path program 1 times [2024-11-22 12:48:00,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:48:00,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95299095] [2024-11-22 12:48:00,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:48:00,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:48:00,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:48:02,276 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-22 12:48:02,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:48:02,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95299095] [2024-11-22 12:48:02,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95299095] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:48:02,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:48:02,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-22 12:48:02,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138160456] [2024-11-22 12:48:02,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:48:02,278 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-22 12:48:02,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:48:02,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-22 12:48:02,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2024-11-22 12:48:02,279 INFO L87 Difference]: Start difference. First operand 403 states and 522 transitions. Second operand has 16 states, 15 states have (on average 3.4) internal successors, (51), 16 states have internal predecessors, (51), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-22 12:48:03,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:48:03,686 INFO L93 Difference]: Finished difference Result 901 states and 1147 transitions. [2024-11-22 12:48:03,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-22 12:48:03,687 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 3.4) internal successors, (51), 16 states have internal predecessors, (51), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 118 [2024-11-22 12:48:03,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:48:03,689 INFO L225 Difference]: With dead ends: 901 [2024-11-22 12:48:03,690 INFO L226 Difference]: Without dead ends: 600 [2024-11-22 12:48:03,691 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=129, Invalid=573, Unknown=0, NotChecked=0, Total=702 [2024-11-22 12:48:03,691 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 365 mSDsluCounter, 697 mSDsCounter, 0 mSdLazyCounter, 781 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 793 SdHoareTripleChecker+Invalid, 857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 781 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-22 12:48:03,692 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [365 Valid, 793 Invalid, 857 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 781 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-22 12:48:03,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2024-11-22 12:48:03,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 403. [2024-11-22 12:48:03,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 358 states have (on average 1.2458100558659218) internal successors, (446), 359 states have internal predecessors, (446), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-22 12:48:03,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 522 transitions. [2024-11-22 12:48:03,756 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 522 transitions. Word has length 118 [2024-11-22 12:48:03,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:48:03,757 INFO L471 AbstractCegarLoop]: Abstraction has 403 states and 522 transitions. [2024-11-22 12:48:03,757 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 3.4) internal successors, (51), 16 states have internal predecessors, (51), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-22 12:48:03,757 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 522 transitions. [2024-11-22 12:48:03,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-22 12:48:03,758 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:48:03,758 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:48:03,758 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-22 12:48:03,759 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:48:03,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:48:03,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1604330016, now seen corresponding path program 1 times [2024-11-22 12:48:03,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:48:03,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211936546] [2024-11-22 12:48:03,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:48:03,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:48:03,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:48:04,473 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-22 12:48:04,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:48:04,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211936546] [2024-11-22 12:48:04,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211936546] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:48:04,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:48:04,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-22 12:48:04,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996341417] [2024-11-22 12:48:04,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:48:04,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-22 12:48:04,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:48:04,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-22 12:48:04,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-11-22 12:48:04,475 INFO L87 Difference]: Start difference. First operand 403 states and 522 transitions. Second operand has 12 states, 11 states have (on average 4.636363636363637) internal successors, (51), 12 states have internal predecessors, (51), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-22 12:48:05,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:48:05,013 INFO L93 Difference]: Finished difference Result 899 states and 1144 transitions. [2024-11-22 12:48:05,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 12:48:05,014 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.636363636363637) internal successors, (51), 12 states have internal predecessors, (51), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 118 [2024-11-22 12:48:05,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:48:05,016 INFO L225 Difference]: With dead ends: 899 [2024-11-22 12:48:05,016 INFO L226 Difference]: Without dead ends: 592 [2024-11-22 12:48:05,017 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=227, Unknown=0, NotChecked=0, Total=306 [2024-11-22 12:48:05,018 INFO L432 NwaCegarLoop]: 82 mSDtfsCounter, 299 mSDsluCounter, 518 mSDsCounter, 0 mSdLazyCounter, 570 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 12:48:05,018 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [299 Valid, 600 Invalid, 649 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 570 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 12:48:05,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2024-11-22 12:48:05,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 397. [2024-11-22 12:48:05,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 352 states have (on average 1.2414772727272727) internal successors, (437), 353 states have internal predecessors, (437), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-22 12:48:05,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 513 transitions. [2024-11-22 12:48:05,092 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 513 transitions. Word has length 118 [2024-11-22 12:48:05,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:48:05,092 INFO L471 AbstractCegarLoop]: Abstraction has 397 states and 513 transitions. [2024-11-22 12:48:05,093 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.636363636363637) internal successors, (51), 12 states have internal predecessors, (51), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-22 12:48:05,093 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 513 transitions. [2024-11-22 12:48:05,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-22 12:48:05,094 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:48:05,094 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:48:05,094 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-22 12:48:05,094 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:48:05,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:48:05,095 INFO L85 PathProgramCache]: Analyzing trace with hash 324466338, now seen corresponding path program 1 times [2024-11-22 12:48:05,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:48:05,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014035443] [2024-11-22 12:48:05,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:48:05,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:48:05,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:48:05,529 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-22 12:48:05,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:48:05,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014035443] [2024-11-22 12:48:05,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014035443] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:48:05,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:48:05,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 12:48:05,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837056633] [2024-11-22 12:48:05,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:48:05,530 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 12:48:05,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:48:05,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 12:48:05,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-22 12:48:05,532 INFO L87 Difference]: Start difference. First operand 397 states and 513 transitions. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-22 12:48:05,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:48:05,894 INFO L93 Difference]: Finished difference Result 895 states and 1138 transitions. [2024-11-22 12:48:05,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 12:48:05,894 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 118 [2024-11-22 12:48:05,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:48:05,897 INFO L225 Difference]: With dead ends: 895 [2024-11-22 12:48:05,897 INFO L226 Difference]: Without dead ends: 592 [2024-11-22 12:48:05,898 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-22 12:48:05,899 INFO L432 NwaCegarLoop]: 89 mSDtfsCounter, 98 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 12:48:05,900 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 469 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 12:48:05,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2024-11-22 12:48:05,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 405. [2024-11-22 12:48:05,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 360 states have (on average 1.2333333333333334) internal successors, (444), 361 states have internal predecessors, (444), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-22 12:48:05,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 520 transitions. [2024-11-22 12:48:05,964 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 520 transitions. Word has length 118 [2024-11-22 12:48:05,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:48:05,964 INFO L471 AbstractCegarLoop]: Abstraction has 405 states and 520 transitions. [2024-11-22 12:48:05,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-22 12:48:05,965 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 520 transitions. [2024-11-22 12:48:05,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-22 12:48:05,966 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:48:05,966 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:48:05,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-22 12:48:05,966 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:48:05,966 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:48:05,966 INFO L85 PathProgramCache]: Analyzing trace with hash -45057604, now seen corresponding path program 1 times [2024-11-22 12:48:05,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:48:05,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936449328] [2024-11-22 12:48:05,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:48:05,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:48:06,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:48:07,016 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-22 12:48:07,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:48:07,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936449328] [2024-11-22 12:48:07,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936449328] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:48:07,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:48:07,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-22 12:48:07,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048119707] [2024-11-22 12:48:07,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:48:07,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-22 12:48:07,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:48:07,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-22 12:48:07,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-22 12:48:07,019 INFO L87 Difference]: Start difference. First operand 405 states and 520 transitions. Second operand has 11 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 11 states have internal predecessors, (52), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-22 12:48:07,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:48:07,626 INFO L93 Difference]: Finished difference Result 1011 states and 1285 transitions. [2024-11-22 12:48:07,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 12:48:07,627 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 11 states have internal predecessors, (52), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 119 [2024-11-22 12:48:07,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:48:07,630 INFO L225 Difference]: With dead ends: 1011 [2024-11-22 12:48:07,630 INFO L226 Difference]: Without dead ends: 710 [2024-11-22 12:48:07,631 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2024-11-22 12:48:07,632 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 197 mSDsluCounter, 721 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 861 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 12:48:07,632 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 861 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 496 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 12:48:07,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 710 states. [2024-11-22 12:48:07,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 710 to 582. [2024-11-22 12:48:07,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 582 states, 509 states have (on average 1.1925343811394893) internal successors, (607), 511 states have internal predecessors, (607), 62 states have call successors, (62), 10 states have call predecessors, (62), 10 states have return successors, (62), 60 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-22 12:48:07,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 582 states and 731 transitions. [2024-11-22 12:48:07,728 INFO L78 Accepts]: Start accepts. Automaton has 582 states and 731 transitions. Word has length 119 [2024-11-22 12:48:07,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:48:07,728 INFO L471 AbstractCegarLoop]: Abstraction has 582 states and 731 transitions. [2024-11-22 12:48:07,729 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 11 states have internal predecessors, (52), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-22 12:48:07,729 INFO L276 IsEmpty]: Start isEmpty. Operand 582 states and 731 transitions. [2024-11-22 12:48:07,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-22 12:48:07,730 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:48:07,730 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:48:07,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-22 12:48:07,730 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:48:07,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:48:07,731 INFO L85 PathProgramCache]: Analyzing trace with hash 656006974, now seen corresponding path program 1 times [2024-11-22 12:48:07,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:48:07,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196078652] [2024-11-22 12:48:07,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:48:07,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:48:07,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:48:08,117 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-22 12:48:08,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:48:08,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196078652] [2024-11-22 12:48:08,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196078652] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:48:08,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:48:08,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-22 12:48:08,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443717007] [2024-11-22 12:48:08,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:48:08,118 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 12:48:08,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:48:08,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 12:48:08,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-22 12:48:08,119 INFO L87 Difference]: Start difference. First operand 582 states and 731 transitions. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-22 12:48:08,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:48:08,413 INFO L93 Difference]: Finished difference Result 1280 states and 1592 transitions. [2024-11-22 12:48:08,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 12:48:08,414 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 119 [2024-11-22 12:48:08,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:48:08,416 INFO L225 Difference]: With dead ends: 1280 [2024-11-22 12:48:08,417 INFO L226 Difference]: Without dead ends: 802 [2024-11-22 12:48:08,417 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2024-11-22 12:48:08,418 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 336 mSDsluCounter, 599 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 703 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 12:48:08,418 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [336 Valid, 703 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 12:48:08,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 802 states. [2024-11-22 12:48:08,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 802 to 680. [2024-11-22 12:48:08,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 680 states, 607 states have (on average 1.1943986820428336) internal successors, (725), 609 states have internal predecessors, (725), 62 states have call successors, (62), 10 states have call predecessors, (62), 10 states have return successors, (62), 60 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-22 12:48:08,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 680 states to 680 states and 849 transitions. [2024-11-22 12:48:08,520 INFO L78 Accepts]: Start accepts. Automaton has 680 states and 849 transitions. Word has length 119 [2024-11-22 12:48:08,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:48:08,520 INFO L471 AbstractCegarLoop]: Abstraction has 680 states and 849 transitions. [2024-11-22 12:48:08,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-22 12:48:08,520 INFO L276 IsEmpty]: Start isEmpty. Operand 680 states and 849 transitions. [2024-11-22 12:48:08,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-22 12:48:08,521 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:48:08,521 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:48:08,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-22 12:48:08,522 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:48:08,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:48:08,522 INFO L85 PathProgramCache]: Analyzing trace with hash -1850495938, now seen corresponding path program 1 times [2024-11-22 12:48:08,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:48:08,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101692660] [2024-11-22 12:48:08,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:48:08,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:48:08,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:48:08,815 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-22 12:48:08,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:48:08,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101692660] [2024-11-22 12:48:08,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101692660] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:48:08,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:48:08,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 12:48:08,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099906460] [2024-11-22 12:48:08,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:48:08,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 12:48:08,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:48:08,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 12:48:08,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-22 12:48:08,817 INFO L87 Difference]: Start difference. First operand 680 states and 849 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-22 12:48:09,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:48:09,074 INFO L93 Difference]: Finished difference Result 1328 states and 1645 transitions. [2024-11-22 12:48:09,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 12:48:09,074 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 119 [2024-11-22 12:48:09,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:48:09,078 INFO L225 Difference]: With dead ends: 1328 [2024-11-22 12:48:09,078 INFO L226 Difference]: Without dead ends: 763 [2024-11-22 12:48:09,079 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2024-11-22 12:48:09,079 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 170 mSDsluCounter, 474 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 12:48:09,080 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 581 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 12:48:09,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 763 states. [2024-11-22 12:48:09,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 763 to 659. [2024-11-22 12:48:09,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 659 states, 586 states have (on average 1.1928327645051195) internal successors, (699), 588 states have internal predecessors, (699), 62 states have call successors, (62), 10 states have call predecessors, (62), 10 states have return successors, (62), 60 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-22 12:48:09,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 823 transitions. [2024-11-22 12:48:09,155 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 823 transitions. Word has length 119 [2024-11-22 12:48:09,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:48:09,155 INFO L471 AbstractCegarLoop]: Abstraction has 659 states and 823 transitions. [2024-11-22 12:48:09,155 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-22 12:48:09,155 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 823 transitions. [2024-11-22 12:48:09,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-22 12:48:09,156 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:48:09,156 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:48:09,157 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-22 12:48:09,157 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:48:09,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:48:09,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1624044860, now seen corresponding path program 1 times [2024-11-22 12:48:09,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:48:09,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055281656] [2024-11-22 12:48:09,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:48:09,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:48:09,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:48:09,907 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-22 12:48:09,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:48:09,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055281656] [2024-11-22 12:48:09,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055281656] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:48:09,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:48:09,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-22 12:48:09,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777724548] [2024-11-22 12:48:09,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:48:09,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-22 12:48:09,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:48:09,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-22 12:48:09,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-11-22 12:48:09,909 INFO L87 Difference]: Start difference. First operand 659 states and 823 transitions. Second operand has 11 states, 10 states have (on average 5.3) internal successors, (53), 11 states have internal predecessors, (53), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-22 12:48:10,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:48:10,458 INFO L93 Difference]: Finished difference Result 1083 states and 1343 transitions. [2024-11-22 12:48:10,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 12:48:10,458 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.3) internal successors, (53), 11 states have internal predecessors, (53), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 120 [2024-11-22 12:48:10,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:48:10,461 INFO L225 Difference]: With dead ends: 1083 [2024-11-22 12:48:10,461 INFO L226 Difference]: Without dead ends: 763 [2024-11-22 12:48:10,462 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=83, Invalid=223, Unknown=0, NotChecked=0, Total=306 [2024-11-22 12:48:10,462 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 285 mSDsluCounter, 550 mSDsCounter, 0 mSdLazyCounter, 534 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 652 SdHoareTripleChecker+Invalid, 623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 12:48:10,463 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [285 Valid, 652 Invalid, 623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 534 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 12:48:10,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 763 states. [2024-11-22 12:48:10,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 763 to 648. [2024-11-22 12:48:10,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 648 states, 575 states have (on average 1.1878260869565218) internal successors, (683), 577 states have internal predecessors, (683), 62 states have call successors, (62), 10 states have call predecessors, (62), 10 states have return successors, (62), 60 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-22 12:48:10,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 807 transitions. [2024-11-22 12:48:10,568 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 807 transitions. Word has length 120 [2024-11-22 12:48:10,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:48:10,569 INFO L471 AbstractCegarLoop]: Abstraction has 648 states and 807 transitions. [2024-11-22 12:48:10,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.3) internal successors, (53), 11 states have internal predecessors, (53), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-22 12:48:10,569 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 807 transitions. [2024-11-22 12:48:10,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-22 12:48:10,570 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:48:10,570 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:48:10,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-22 12:48:10,571 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:48:10,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:48:10,571 INFO L85 PathProgramCache]: Analyzing trace with hash -864639065, now seen corresponding path program 1 times [2024-11-22 12:48:10,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:48:10,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080397267] [2024-11-22 12:48:10,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:48:10,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:48:10,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:48:12,072 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-22 12:48:12,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:48:12,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080397267] [2024-11-22 12:48:12,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080397267] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:48:12,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:48:12,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-22 12:48:12,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705677655] [2024-11-22 12:48:12,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:48:12,073 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-22 12:48:12,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:48:12,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-22 12:48:12,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2024-11-22 12:48:12,074 INFO L87 Difference]: Start difference. First operand 648 states and 807 transitions. Second operand has 18 states, 18 states have (on average 3.0) internal successors, (54), 18 states have internal predecessors, (54), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-22 12:48:13,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:48:13,972 INFO L93 Difference]: Finished difference Result 1250 states and 1561 transitions. [2024-11-22 12:48:13,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-22 12:48:13,972 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.0) internal successors, (54), 18 states have internal predecessors, (54), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 121 [2024-11-22 12:48:13,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:48:13,976 INFO L225 Difference]: With dead ends: 1250 [2024-11-22 12:48:13,976 INFO L226 Difference]: Without dead ends: 943 [2024-11-22 12:48:13,977 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 355 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=224, Invalid=1416, Unknown=0, NotChecked=0, Total=1640 [2024-11-22 12:48:13,978 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 487 mSDsluCounter, 1564 mSDsCounter, 0 mSdLazyCounter, 1595 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 487 SdHoareTripleChecker+Valid, 1711 SdHoareTripleChecker+Invalid, 1612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-22 12:48:13,978 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [487 Valid, 1711 Invalid, 1612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1595 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-22 12:48:13,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 943 states. [2024-11-22 12:48:14,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 943 to 679. [2024-11-22 12:48:14,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 679 states, 606 states have (on average 1.1963696369636965) internal successors, (725), 608 states have internal predecessors, (725), 62 states have call successors, (62), 10 states have call predecessors, (62), 10 states have return successors, (62), 60 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-22 12:48:14,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 679 states to 679 states and 849 transitions. [2024-11-22 12:48:14,085 INFO L78 Accepts]: Start accepts. Automaton has 679 states and 849 transitions. Word has length 121 [2024-11-22 12:48:14,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:48:14,085 INFO L471 AbstractCegarLoop]: Abstraction has 679 states and 849 transitions. [2024-11-22 12:48:14,085 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.0) internal successors, (54), 18 states have internal predecessors, (54), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-22 12:48:14,086 INFO L276 IsEmpty]: Start isEmpty. Operand 679 states and 849 transitions. [2024-11-22 12:48:14,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-22 12:48:14,086 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:48:14,086 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:48:14,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-22 12:48:14,087 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:48:14,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:48:14,087 INFO L85 PathProgramCache]: Analyzing trace with hash -301388629, now seen corresponding path program 1 times [2024-11-22 12:48:14,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:48:14,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144866638] [2024-11-22 12:48:14,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:48:14,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:48:14,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:48:25,468 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-22 12:48:25,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:48:25,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144866638] [2024-11-22 12:48:25,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144866638] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:48:25,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:48:25,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-22 12:48:25,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243455913] [2024-11-22 12:48:25,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:48:25,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-22 12:48:25,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:48:25,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-22 12:48:25,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2024-11-22 12:48:25,471 INFO L87 Difference]: Start difference. First operand 679 states and 849 transitions. Second operand has 16 states, 16 states have (on average 3.375) internal successors, (54), 16 states have internal predecessors, (54), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-22 12:48:39,237 WARN L286 SmtUtils]: Spent 8.52s on a formula simplification that was a NOOP. DAG size: 128 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)