./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-71.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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-71.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 aee42ba0cf9a24f4eeb1ee03ef3d8ced6b7aa6b554ee3bb56f926e41b4f0fafe --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 00:49:11,510 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 00:49:11,567 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 00:49:11,570 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 00:49:11,572 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 00:49:11,600 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 00:49:11,602 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 00:49:11,603 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 00:49:11,603 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 00:49:11,604 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 00:49:11,604 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 00:49:11,604 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 00:49:11,605 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 00:49:11,606 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 00:49:11,607 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 00:49:11,607 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 00:49:11,607 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 00:49:11,607 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 00:49:11,608 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 00:49:11,608 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 00:49:11,608 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 00:49:11,611 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 00:49:11,612 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 00:49:11,612 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 00:49:11,612 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 00:49:11,612 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 00:49:11,613 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 00:49:11,613 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 00:49:11,613 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 00:49:11,613 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 00:49:11,613 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 00:49:11,614 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 00:49:11,614 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 00:49:11,614 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 00:49:11,614 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 00:49:11,615 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 00:49:11,615 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 00:49:11,615 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 00:49:11,617 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 00:49:11,617 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 00:49:11,617 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 00:49:11,618 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 00:49:11,618 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aee42ba0cf9a24f4eeb1ee03ef3d8ced6b7aa6b554ee3bb56f926e41b4f0fafe [2024-11-19 00:49:11,868 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 00:49:11,889 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 00:49:11,892 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 00:49:11,893 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 00:49:11,893 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 00:49:11,894 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-71.i [2024-11-19 00:49:13,187 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 00:49:13,373 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 00:49:13,374 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-71.i [2024-11-19 00:49:13,382 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4578ea498/e9de65ae6b424e6997d47dc4c959aeef/FLAGe46a9301a [2024-11-19 00:49:13,757 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4578ea498/e9de65ae6b424e6997d47dc4c959aeef [2024-11-19 00:49:13,759 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 00:49:13,760 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 00:49:13,761 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 00:49:13,761 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 00:49:13,766 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 00:49:13,766 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 12:49:13" (1/1) ... [2024-11-19 00:49:13,767 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44b103a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:49:13, skipping insertion in model container [2024-11-19 00:49:13,767 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 12:49:13" (1/1) ... [2024-11-19 00:49:13,790 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 00:49:13,938 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-71.i[917,930] [2024-11-19 00:49:14,000 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 00:49:14,011 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 00:49:14,021 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-71.i[917,930] [2024-11-19 00:49:14,056 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 00:49:14,079 INFO L204 MainTranslator]: Completed translation [2024-11-19 00:49:14,080 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:49:14 WrapperNode [2024-11-19 00:49:14,080 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 00:49:14,081 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 00:49:14,081 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 00:49:14,081 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 00:49:14,087 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:49:14" (1/1) ... [2024-11-19 00:49:14,104 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:49:14" (1/1) ... [2024-11-19 00:49:14,134 INFO L138 Inliner]: procedures = 26, calls = 173, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 509 [2024-11-19 00:49:14,135 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 00:49:14,135 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 00:49:14,136 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 00:49:14,136 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 00:49:14,151 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:49:14" (1/1) ... [2024-11-19 00:49:14,152 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:49:14" (1/1) ... [2024-11-19 00:49:14,161 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:49:14" (1/1) ... [2024-11-19 00:49:14,180 INFO L175 MemorySlicer]: Split 138 memory accesses to 6 slices as follows [2, 20, 16, 85, 7, 8]. 62 percent of accesses are in the largest equivalence class. The 16 initializations are split as follows [2, 3, 3, 5, 1, 2]. The 18 writes are split as follows [0, 3, 3, 8, 1, 3]. [2024-11-19 00:49:14,180 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:49:14" (1/1) ... [2024-11-19 00:49:14,181 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:49:14" (1/1) ... [2024-11-19 00:49:14,192 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:49:14" (1/1) ... [2024-11-19 00:49:14,195 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:49:14" (1/1) ... [2024-11-19 00:49:14,197 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:49:14" (1/1) ... [2024-11-19 00:49:14,200 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:49:14" (1/1) ... [2024-11-19 00:49:14,204 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 00:49:14,205 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 00:49:14,205 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 00:49:14,205 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 00:49:14,206 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:49:14" (1/1) ... [2024-11-19 00:49:14,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 00:49:14,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:49:14,244 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) [2024-11-19 00:49:14,250 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 [2024-11-19 00:49:14,292 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 00:49:14,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 00:49:14,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-19 00:49:14,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-19 00:49:14,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-19 00:49:14,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-19 00:49:14,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-19 00:49:14,294 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 00:49:14,294 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-19 00:49:14,294 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-19 00:49:14,294 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-19 00:49:14,294 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-19 00:49:14,294 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-19 00:49:14,294 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-19 00:49:14,294 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-19 00:49:14,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 00:49:14,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 00:49:14,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-19 00:49:14,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-19 00:49:14,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-19 00:49:14,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-19 00:49:14,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 00:49:14,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 00:49:14,414 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 00:49:14,416 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 00:49:14,853 INFO L? ?]: Removed 126 outVars from TransFormulas that were not future-live. [2024-11-19 00:49:14,854 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 00:49:14,871 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 00:49:14,871 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-19 00:49:14,872 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 12:49:14 BoogieIcfgContainer [2024-11-19 00:49:14,872 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 00:49:14,873 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 00:49:14,874 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 00:49:14,878 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 00:49:14,878 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 12:49:13" (1/3) ... [2024-11-19 00:49:14,879 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67c172d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 12:49:14, skipping insertion in model container [2024-11-19 00:49:14,879 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:49:14" (2/3) ... [2024-11-19 00:49:14,879 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67c172d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 12:49:14, skipping insertion in model container [2024-11-19 00:49:14,879 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 12:49:14" (3/3) ... [2024-11-19 00:49:14,881 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-ap_file-71.i [2024-11-19 00:49:14,896 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 00:49:14,896 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 00:49:14,945 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 00:49:14,950 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;@4c8671b1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 00:49:14,951 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 00:49:14,982 INFO L276 IsEmpty]: Start isEmpty. Operand has 105 states, 83 states have (on average 1.3855421686746987) internal successors, (115), 84 states have internal predecessors, (115), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-19 00:49:15,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-19 00:49:15,008 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:49:15,009 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:49:15,009 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:49:15,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:49:15,014 INFO L85 PathProgramCache]: Analyzing trace with hash 634959908, now seen corresponding path program 1 times [2024-11-19 00:49:15,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:49:15,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316441185] [2024-11-19 00:49:15,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:49:15,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:49:15,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:49:15,316 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2024-11-19 00:49:15,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:49:15,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316441185] [2024-11-19 00:49:15,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316441185] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 00:49:15,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1545277169] [2024-11-19 00:49:15,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:49:15,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:49:15,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:49:15,321 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) [2024-11-19 00:49:15,322 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 00:49:15,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:49:15,497 INFO L255 TraceCheckSpWp]: Trace formula consists of 498 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-19 00:49:15,507 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 00:49:15,535 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2024-11-19 00:49:15,536 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 00:49:15,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1545277169] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:49:15,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 00:49:15,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-19 00:49:15,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512805229] [2024-11-19 00:49:15,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:49:15,545 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 00:49:15,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:49:15,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 00:49:15,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 00:49:15,568 INFO L87 Difference]: Start difference. First operand has 105 states, 83 states have (on average 1.3855421686746987) internal successors, (115), 84 states have internal predecessors, (115), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-19 00:49:15,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:49:15,591 INFO L93 Difference]: Finished difference Result 203 states and 319 transitions. [2024-11-19 00:49:15,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 00:49:15,593 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 144 [2024-11-19 00:49:15,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:49:15,599 INFO L225 Difference]: With dead ends: 203 [2024-11-19 00:49:15,599 INFO L226 Difference]: Without dead ends: 101 [2024-11-19 00:49:15,602 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 00:49:15,605 INFO L432 NwaCegarLoop]: 144 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, 144 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 [2024-11-19 00:49:15,606 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 00:49:15,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-11-19 00:49:15,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2024-11-19 00:49:15,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 80 states have (on average 1.325) internal successors, (106), 80 states have internal predecessors, (106), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-19 00:49:15,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 144 transitions. [2024-11-19 00:49:15,643 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 144 transitions. Word has length 144 [2024-11-19 00:49:15,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:49:15,644 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 144 transitions. [2024-11-19 00:49:15,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-19 00:49:15,644 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 144 transitions. [2024-11-19 00:49:15,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-19 00:49:15,647 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:49:15,647 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:49:15,664 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-19 00:49:15,848 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 [2024-11-19 00:49:15,848 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:49:15,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:49:15,849 INFO L85 PathProgramCache]: Analyzing trace with hash 1640475338, now seen corresponding path program 1 times [2024-11-19 00:49:15,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:49:15,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88593275] [2024-11-19 00:49:15,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:49:15,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:49:15,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:49:16,136 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:49:16,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:49:16,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88593275] [2024-11-19 00:49:16,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88593275] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:49:16,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:49:16,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 00:49:16,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213802915] [2024-11-19 00:49:16,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:49:16,137 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 00:49:16,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:49:16,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 00:49:16,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 00:49:16,138 INFO L87 Difference]: Start difference. First operand 101 states and 144 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:49:16,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:49:16,185 INFO L93 Difference]: Finished difference Result 202 states and 289 transitions. [2024-11-19 00:49:16,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 00:49:16,186 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 144 [2024-11-19 00:49:16,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:49:16,188 INFO L225 Difference]: With dead ends: 202 [2024-11-19 00:49:16,188 INFO L226 Difference]: Without dead ends: 104 [2024-11-19 00:49:16,188 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 [2024-11-19 00:49:16,191 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 1 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 412 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 [2024-11-19 00:49:16,192 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 412 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 00:49:16,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-11-19 00:49:16,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 103. [2024-11-19 00:49:16,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 82 states have (on average 1.3170731707317074) internal successors, (108), 82 states have internal predecessors, (108), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-19 00:49:16,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 146 transitions. [2024-11-19 00:49:16,212 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 146 transitions. Word has length 144 [2024-11-19 00:49:16,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:49:16,214 INFO L471 AbstractCegarLoop]: Abstraction has 103 states and 146 transitions. [2024-11-19 00:49:16,214 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:49:16,214 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 146 transitions. [2024-11-19 00:49:16,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-19 00:49:16,218 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:49:16,218 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:49:16,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 00:49:16,219 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:49:16,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:49:16,220 INFO L85 PathProgramCache]: Analyzing trace with hash -879484596, now seen corresponding path program 1 times [2024-11-19 00:49:16,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:49:16,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706536599] [2024-11-19 00:49:16,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:49:16,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:49:16,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:49:16,385 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:49:16,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:49:16,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706536599] [2024-11-19 00:49:16,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706536599] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:49:16,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:49:16,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 00:49:16,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541298047] [2024-11-19 00:49:16,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:49:16,386 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 00:49:16,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:49:16,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 00:49:16,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 00:49:16,387 INFO L87 Difference]: Start difference. First operand 103 states and 146 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:49:16,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:49:16,422 INFO L93 Difference]: Finished difference Result 206 states and 293 transitions. [2024-11-19 00:49:16,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 00:49:16,423 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 144 [2024-11-19 00:49:16,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:49:16,424 INFO L225 Difference]: With dead ends: 206 [2024-11-19 00:49:16,428 INFO L226 Difference]: Without dead ends: 106 [2024-11-19 00:49:16,428 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 [2024-11-19 00:49:16,429 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 1 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 415 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 [2024-11-19 00:49:16,430 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 415 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 00:49:16,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-11-19 00:49:16,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 105. [2024-11-19 00:49:16,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 84 states have (on average 1.3095238095238095) internal successors, (110), 84 states have internal predecessors, (110), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-19 00:49:16,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 148 transitions. [2024-11-19 00:49:16,443 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 148 transitions. Word has length 144 [2024-11-19 00:49:16,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:49:16,445 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 148 transitions. [2024-11-19 00:49:16,446 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:49:16,446 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 148 transitions. [2024-11-19 00:49:16,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-19 00:49:16,447 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:49:16,447 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:49:16,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 00:49:16,451 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:49:16,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:49:16,452 INFO L85 PathProgramCache]: Analyzing trace with hash -877637554, now seen corresponding path program 1 times [2024-11-19 00:49:16,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:49:16,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152474726] [2024-11-19 00:49:16,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:49:16,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:49:16,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:49:16,791 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:49:16,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:49:16,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152474726] [2024-11-19 00:49:16,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152474726] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:49:16,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:49:16,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 00:49:16,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432230344] [2024-11-19 00:49:16,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:49:16,793 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 00:49:16,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:49:16,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 00:49:16,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 00:49:16,793 INFO L87 Difference]: Start difference. First operand 105 states and 148 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:49:16,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:49:16,887 INFO L93 Difference]: Finished difference Result 266 states and 375 transitions. [2024-11-19 00:49:16,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 00:49:16,888 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 144 [2024-11-19 00:49:16,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:49:16,892 INFO L225 Difference]: With dead ends: 266 [2024-11-19 00:49:16,893 INFO L226 Difference]: Without dead ends: 164 [2024-11-19 00:49:16,894 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 [2024-11-19 00:49:16,895 INFO L432 NwaCegarLoop]: 203 mSDtfsCounter, 87 mSDsluCounter, 506 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 709 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:49:16,896 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 709 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 00:49:16,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2024-11-19 00:49:16,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 107. [2024-11-19 00:49:16,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 86 states have (on average 1.302325581395349) internal successors, (112), 86 states have internal predecessors, (112), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-19 00:49:16,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 150 transitions. [2024-11-19 00:49:16,906 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 150 transitions. Word has length 144 [2024-11-19 00:49:16,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:49:16,906 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 150 transitions. [2024-11-19 00:49:16,906 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:49:16,907 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 150 transitions. [2024-11-19 00:49:16,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-19 00:49:16,908 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:49:16,908 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:49:16,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 00:49:16,909 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:49:16,909 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:49:16,909 INFO L85 PathProgramCache]: Analyzing trace with hash -694713373, now seen corresponding path program 1 times [2024-11-19 00:49:16,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:49:16,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362705743] [2024-11-19 00:49:16,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:49:16,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:49:16,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:49:17,396 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:49:17,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:49:17,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362705743] [2024-11-19 00:49:17,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362705743] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:49:17,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:49:17,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 00:49:17,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922007679] [2024-11-19 00:49:17,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:49:17,397 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 00:49:17,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:49:17,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 00:49:17,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-19 00:49:17,398 INFO L87 Difference]: Start difference. First operand 107 states and 150 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:49:17,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:49:17,497 INFO L93 Difference]: Finished difference Result 269 states and 378 transitions. [2024-11-19 00:49:17,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 00:49:17,499 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 145 [2024-11-19 00:49:17,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:49:17,501 INFO L225 Difference]: With dead ends: 269 [2024-11-19 00:49:17,501 INFO L226 Difference]: Without dead ends: 165 [2024-11-19 00:49:17,502 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-19 00:49:17,502 INFO L432 NwaCegarLoop]: 180 mSDtfsCounter, 83 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 651 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:49:17,503 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 651 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 00:49:17,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2024-11-19 00:49:17,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 119. [2024-11-19 00:49:17,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 98 states have (on average 1.3265306122448979) internal successors, (130), 98 states have internal predecessors, (130), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-19 00:49:17,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 168 transitions. [2024-11-19 00:49:17,515 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 168 transitions. Word has length 145 [2024-11-19 00:49:17,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:49:17,515 INFO L471 AbstractCegarLoop]: Abstraction has 119 states and 168 transitions. [2024-11-19 00:49:17,516 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:49:17,516 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 168 transitions. [2024-11-19 00:49:17,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-19 00:49:17,517 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:49:17,517 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:49:17,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 00:49:17,517 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:49:17,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:49:17,521 INFO L85 PathProgramCache]: Analyzing trace with hash 982540647, now seen corresponding path program 1 times [2024-11-19 00:49:17,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:49:17,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406968648] [2024-11-19 00:49:17,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:49:17,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:49:17,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:49:18,265 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:49:18,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:49:18,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406968648] [2024-11-19 00:49:18,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406968648] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:49:18,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:49:18,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 00:49:18,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764766618] [2024-11-19 00:49:18,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:49:18,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 00:49:18,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:49:18,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 00:49:18,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-19 00:49:18,269 INFO L87 Difference]: Start difference. First operand 119 states and 168 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:49:18,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:49:18,637 INFO L93 Difference]: Finished difference Result 313 states and 440 transitions. [2024-11-19 00:49:18,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 00:49:18,638 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 146 [2024-11-19 00:49:18,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:49:18,639 INFO L225 Difference]: With dead ends: 313 [2024-11-19 00:49:18,639 INFO L226 Difference]: Without dead ends: 197 [2024-11-19 00:49:18,639 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2024-11-19 00:49:18,640 INFO L432 NwaCegarLoop]: 185 mSDtfsCounter, 260 mSDsluCounter, 588 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 773 SdHoareTripleChecker+Invalid, 341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 00:49:18,640 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 773 Invalid, 341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 00:49:18,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2024-11-19 00:49:18,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 194. [2024-11-19 00:49:18,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 161 states have (on average 1.3167701863354038) internal successors, (212), 162 states have internal predecessors, (212), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-19 00:49:18,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 272 transitions. [2024-11-19 00:49:18,664 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 272 transitions. Word has length 146 [2024-11-19 00:49:18,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:49:18,665 INFO L471 AbstractCegarLoop]: Abstraction has 194 states and 272 transitions. [2024-11-19 00:49:18,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:49:18,665 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 272 transitions. [2024-11-19 00:49:18,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-19 00:49:18,666 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:49:18,666 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:49:18,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 00:49:18,666 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:49:18,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:49:18,667 INFO L85 PathProgramCache]: Analyzing trace with hash -269161938, now seen corresponding path program 1 times [2024-11-19 00:49:18,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:49:18,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097364184] [2024-11-19 00:49:18,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:49:18,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:49:18,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:49:18,862 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:49:18,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:49:18,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097364184] [2024-11-19 00:49:18,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097364184] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:49:18,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:49:18,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 00:49:18,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413299287] [2024-11-19 00:49:18,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:49:18,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 00:49:18,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:49:18,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 00:49:18,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 00:49:18,864 INFO L87 Difference]: Start difference. First operand 194 states and 272 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:49:18,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:49:18,927 INFO L93 Difference]: Finished difference Result 412 states and 574 transitions. [2024-11-19 00:49:18,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 00:49:18,928 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 146 [2024-11-19 00:49:18,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:49:18,931 INFO L225 Difference]: With dead ends: 412 [2024-11-19 00:49:18,931 INFO L226 Difference]: Without dead ends: 221 [2024-11-19 00:49:18,932 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 [2024-11-19 00:49:18,933 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 53 mSDsluCounter, 431 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 00:49:18,934 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 591 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 00:49:18,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2024-11-19 00:49:18,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 188. [2024-11-19 00:49:18,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 155 states have (on average 1.2967741935483872) internal successors, (201), 156 states have internal predecessors, (201), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-19 00:49:18,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 261 transitions. [2024-11-19 00:49:18,950 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 261 transitions. Word has length 146 [2024-11-19 00:49:18,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:49:18,950 INFO L471 AbstractCegarLoop]: Abstraction has 188 states and 261 transitions. [2024-11-19 00:49:18,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:49:18,951 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 261 transitions. [2024-11-19 00:49:18,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-19 00:49:18,952 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:49:18,952 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:49:18,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 00:49:18,952 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:49:18,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:49:18,955 INFO L85 PathProgramCache]: Analyzing trace with hash -1492113649, now seen corresponding path program 1 times [2024-11-19 00:49:18,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:49:18,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640733278] [2024-11-19 00:49:18,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:49:18,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:49:18,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:49:19,159 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:49:19,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:49:19,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640733278] [2024-11-19 00:49:19,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640733278] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:49:19,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:49:19,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 00:49:19,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861252025] [2024-11-19 00:49:19,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:49:19,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 00:49:19,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:49:19,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 00:49:19,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 00:49:19,163 INFO L87 Difference]: Start difference. First operand 188 states and 261 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:49:19,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:49:19,223 INFO L93 Difference]: Finished difference Result 400 states and 552 transitions. [2024-11-19 00:49:19,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 00:49:19,224 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 147 [2024-11-19 00:49:19,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:49:19,225 INFO L225 Difference]: With dead ends: 400 [2024-11-19 00:49:19,225 INFO L226 Difference]: Without dead ends: 215 [2024-11-19 00:49:19,226 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 [2024-11-19 00:49:19,226 INFO L432 NwaCegarLoop]: 183 mSDtfsCounter, 55 mSDsluCounter, 457 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 640 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 00:49:19,226 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 640 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 00:49:19,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2024-11-19 00:49:19,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 186. [2024-11-19 00:49:19,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 153 states have (on average 1.2810457516339868) internal successors, (196), 154 states have internal predecessors, (196), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-19 00:49:19,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 256 transitions. [2024-11-19 00:49:19,235 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 256 transitions. Word has length 147 [2024-11-19 00:49:19,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:49:19,236 INFO L471 AbstractCegarLoop]: Abstraction has 186 states and 256 transitions. [2024-11-19 00:49:19,236 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:49:19,236 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 256 transitions. [2024-11-19 00:49:19,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-19 00:49:19,237 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:49:19,237 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:49:19,237 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 00:49:19,238 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:49:19,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:49:19,238 INFO L85 PathProgramCache]: Analyzing trace with hash 1431681951, now seen corresponding path program 1 times [2024-11-19 00:49:19,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:49:19,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207228420] [2024-11-19 00:49:19,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:49:19,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:49:19,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:49:20,851 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:49:20,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:49:20,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207228420] [2024-11-19 00:49:20,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207228420] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:49:20,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:49:20,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-19 00:49:20,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750624118] [2024-11-19 00:49:20,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:49:20,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-19 00:49:20,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:49:20,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-19 00:49:20,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-19 00:49:20,853 INFO L87 Difference]: Start difference. First operand 186 states and 256 transitions. Second operand has 12 states, 11 states have (on average 5.0) internal successors, (55), 12 states have internal predecessors, (55), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-19 00:49:26,924 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-19 00:49:28,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:49:28,956 INFO L93 Difference]: Finished difference Result 502 states and 687 transitions. [2024-11-19 00:49:28,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-19 00:49:28,957 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.0) internal successors, (55), 12 states have internal predecessors, (55), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) Word has length 147 [2024-11-19 00:49:28,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:49:28,959 INFO L225 Difference]: With dead ends: 502 [2024-11-19 00:49:28,959 INFO L226 Difference]: Without dead ends: 319 [2024-11-19 00:49:28,959 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=84, Invalid=296, Unknown=0, NotChecked=0, Total=380 [2024-11-19 00:49:28,960 INFO L432 NwaCegarLoop]: 108 mSDtfsCounter, 541 mSDsluCounter, 468 mSDsCounter, 0 mSdLazyCounter, 575 mSolverCounterSat, 134 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 542 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 575 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2024-11-19 00:49:28,960 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [542 Valid, 576 Invalid, 710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 575 Invalid, 1 Unknown, 0 Unchecked, 7.4s Time] [2024-11-19 00:49:28,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2024-11-19 00:49:28,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 199. [2024-11-19 00:49:28,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 166 states have (on average 1.2891566265060241) internal successors, (214), 167 states have internal predecessors, (214), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-19 00:49:28,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 274 transitions. [2024-11-19 00:49:28,996 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 274 transitions. Word has length 147 [2024-11-19 00:49:28,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:49:28,996 INFO L471 AbstractCegarLoop]: Abstraction has 199 states and 274 transitions. [2024-11-19 00:49:28,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.0) internal successors, (55), 12 states have internal predecessors, (55), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-19 00:49:28,997 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 274 transitions. [2024-11-19 00:49:28,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-19 00:49:28,997 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:49:28,998 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:49:28,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 00:49:28,998 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:49:28,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:49:28,999 INFO L85 PathProgramCache]: Analyzing trace with hash -1583421667, now seen corresponding path program 1 times [2024-11-19 00:49:28,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:49:29,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095019400] [2024-11-19 00:49:29,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:49:29,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:49:29,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:49:29,880 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:49:29,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:49:29,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095019400] [2024-11-19 00:49:29,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095019400] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:49:29,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:49:29,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-19 00:49:29,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906698691] [2024-11-19 00:49:29,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:49:29,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-19 00:49:29,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:49:29,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-19 00:49:29,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-19 00:49:29,883 INFO L87 Difference]: Start difference. First operand 199 states and 274 transitions. Second operand has 12 states, 11 states have (on average 5.0) internal successors, (55), 12 states have internal predecessors, (55), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-19 00:49:30,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:49:30,611 INFO L93 Difference]: Finished difference Result 452 states and 620 transitions. [2024-11-19 00:49:30,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-19 00:49:30,611 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.0) internal successors, (55), 12 states have internal predecessors, (55), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) Word has length 147 [2024-11-19 00:49:30,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:49:30,613 INFO L225 Difference]: With dead ends: 452 [2024-11-19 00:49:30,613 INFO L226 Difference]: Without dead ends: 256 [2024-11-19 00:49:30,614 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=269, Unknown=0, NotChecked=0, Total=342 [2024-11-19 00:49:30,614 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 176 mSDsluCounter, 924 mSDsCounter, 0 mSdLazyCounter, 655 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 1091 SdHoareTripleChecker+Invalid, 678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-19 00:49:30,614 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 1091 Invalid, 678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 655 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-19 00:49:30,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2024-11-19 00:49:30,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 200. [2024-11-19 00:49:30,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 167 states have (on average 1.2874251497005988) internal successors, (215), 168 states have internal predecessors, (215), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-19 00:49:30,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 275 transitions. [2024-11-19 00:49:30,635 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 275 transitions. Word has length 147 [2024-11-19 00:49:30,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:49:30,637 INFO L471 AbstractCegarLoop]: Abstraction has 200 states and 275 transitions. [2024-11-19 00:49:30,637 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.0) internal successors, (55), 12 states have internal predecessors, (55), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-19 00:49:30,638 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 275 transitions. [2024-11-19 00:49:30,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-19 00:49:30,639 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:49:30,639 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:49:30,639 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 00:49:30,639 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:49:30,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:49:30,641 INFO L85 PathProgramCache]: Analyzing trace with hash 1572230561, now seen corresponding path program 1 times [2024-11-19 00:49:30,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:49:30,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545032815] [2024-11-19 00:49:30,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:49:30,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:49:30,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:49:30,917 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:49:30,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:49:30,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545032815] [2024-11-19 00:49:30,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545032815] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:49:30,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:49:30,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 00:49:30,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973069762] [2024-11-19 00:49:30,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:49:30,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 00:49:30,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:49:30,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 00:49:30,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 00:49:30,919 INFO L87 Difference]: Start difference. First operand 200 states and 275 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:49:31,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:49:31,144 INFO L93 Difference]: Finished difference Result 456 states and 625 transitions. [2024-11-19 00:49:31,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 00:49:31,145 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 147 [2024-11-19 00:49:31,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:49:31,147 INFO L225 Difference]: With dead ends: 456 [2024-11-19 00:49:31,147 INFO L226 Difference]: Without dead ends: 259 [2024-11-19 00:49:31,148 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-19 00:49:31,148 INFO L432 NwaCegarLoop]: 186 mSDtfsCounter, 84 mSDsluCounter, 812 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 998 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 00:49:31,149 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 998 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 00:49:31,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2024-11-19 00:49:31,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 198. [2024-11-19 00:49:31,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 165 states have (on average 1.290909090909091) internal successors, (213), 166 states have internal predecessors, (213), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-19 00:49:31,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 273 transitions. [2024-11-19 00:49:31,177 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 273 transitions. Word has length 147 [2024-11-19 00:49:31,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:49:31,178 INFO L471 AbstractCegarLoop]: Abstraction has 198 states and 273 transitions. [2024-11-19 00:49:31,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:49:31,178 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 273 transitions. [2024-11-19 00:49:31,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-19 00:49:31,179 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:49:31,179 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:49:31,179 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 00:49:31,180 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:49:31,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:49:31,180 INFO L85 PathProgramCache]: Analyzing trace with hash -1442873057, now seen corresponding path program 1 times [2024-11-19 00:49:31,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:49:31,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191890356] [2024-11-19 00:49:31,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:49:31,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:49:31,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:49:32,216 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:49:32,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:49:32,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191890356] [2024-11-19 00:49:32,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191890356] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:49:32,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:49:32,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-19 00:49:32,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088590106] [2024-11-19 00:49:32,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:49:32,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-19 00:49:32,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:49:32,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-19 00:49:32,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-11-19 00:49:32,218 INFO L87 Difference]: Start difference. First operand 198 states and 273 transitions. Second operand has 11 states, 10 states have (on average 5.5) internal successors, (55), 11 states have internal predecessors, (55), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-19 00:49:33,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:49:33,475 INFO L93 Difference]: Finished difference Result 450 states and 617 transitions. [2024-11-19 00:49:33,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 00:49:33,479 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.5) internal successors, (55), 11 states have internal predecessors, (55), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) Word has length 147 [2024-11-19 00:49:33,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:49:33,481 INFO L225 Difference]: With dead ends: 450 [2024-11-19 00:49:33,481 INFO L226 Difference]: Without dead ends: 255 [2024-11-19 00:49:33,481 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2024-11-19 00:49:33,482 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 188 mSDsluCounter, 659 mSDsCounter, 0 mSdLazyCounter, 759 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 830 SdHoareTripleChecker+Invalid, 784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-19 00:49:33,482 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 830 Invalid, 784 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 759 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-19 00:49:33,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2024-11-19 00:49:33,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 198. [2024-11-19 00:49:33,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 165 states have (on average 1.284848484848485) internal successors, (212), 166 states have internal predecessors, (212), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-19 00:49:33,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 272 transitions. [2024-11-19 00:49:33,499 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 272 transitions. Word has length 147 [2024-11-19 00:49:33,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:49:33,499 INFO L471 AbstractCegarLoop]: Abstraction has 198 states and 272 transitions. [2024-11-19 00:49:33,499 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.5) internal successors, (55), 11 states have internal predecessors, (55), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-19 00:49:33,499 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 272 transitions. [2024-11-19 00:49:33,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-19 00:49:33,500 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:49:33,500 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:49:33,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-19 00:49:33,501 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:49:33,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:49:33,501 INFO L85 PathProgramCache]: Analyzing trace with hash 781233282, now seen corresponding path program 1 times [2024-11-19 00:49:33,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:49:33,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848979424] [2024-11-19 00:49:33,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:49:33,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:49:33,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:49:34,221 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:49:34,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:49:34,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848979424] [2024-11-19 00:49:34,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848979424] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:49:34,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:49:34,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-19 00:49:34,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310021725] [2024-11-19 00:49:34,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:49:34,222 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-19 00:49:34,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:49:34,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-19 00:49:34,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-19 00:49:34,223 INFO L87 Difference]: Start difference. First operand 198 states and 272 transitions. Second operand has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:49:35,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:49:35,168 INFO L93 Difference]: Finished difference Result 468 states and 642 transitions. [2024-11-19 00:49:35,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-19 00:49:35,170 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 148 [2024-11-19 00:49:35,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:49:35,172 INFO L225 Difference]: With dead ends: 468 [2024-11-19 00:49:35,172 INFO L226 Difference]: Without dead ends: 273 [2024-11-19 00:49:35,172 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2024-11-19 00:49:35,172 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 180 mSDsluCounter, 1008 mSDsCounter, 0 mSdLazyCounter, 851 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 1186 SdHoareTripleChecker+Invalid, 874 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 851 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-19 00:49:35,173 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 1186 Invalid, 874 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 851 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-19 00:49:35,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2024-11-19 00:49:35,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 216. [2024-11-19 00:49:35,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 183 states have (on average 1.2950819672131149) internal successors, (237), 184 states have internal predecessors, (237), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-19 00:49:35,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 297 transitions. [2024-11-19 00:49:35,193 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 297 transitions. Word has length 148 [2024-11-19 00:49:35,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:49:35,193 INFO L471 AbstractCegarLoop]: Abstraction has 216 states and 297 transitions. [2024-11-19 00:49:35,193 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:49:35,193 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 297 transitions. [2024-11-19 00:49:35,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-19 00:49:35,195 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:49:35,195 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:49:35,195 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-19 00:49:35,195 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:49:35,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:49:35,196 INFO L85 PathProgramCache]: Analyzing trace with hash -1132673159, now seen corresponding path program 1 times [2024-11-19 00:49:35,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:49:35,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145003169] [2024-11-19 00:49:35,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:49:35,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:49:35,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:49:35,343 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:49:35,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:49:35,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145003169] [2024-11-19 00:49:35,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145003169] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:49:35,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:49:35,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 00:49:35,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379191811] [2024-11-19 00:49:35,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:49:35,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 00:49:35,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:49:35,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 00:49:35,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 00:49:35,344 INFO L87 Difference]: Start difference. First operand 216 states and 297 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:49:35,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:49:35,428 INFO L93 Difference]: Finished difference Result 461 states and 631 transitions. [2024-11-19 00:49:35,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 00:49:35,429 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 148 [2024-11-19 00:49:35,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:49:35,430 INFO L225 Difference]: With dead ends: 461 [2024-11-19 00:49:35,430 INFO L226 Difference]: Without dead ends: 248 [2024-11-19 00:49:35,431 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 [2024-11-19 00:49:35,431 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 63 mSDsluCounter, 423 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:49:35,432 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 584 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 00:49:35,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2024-11-19 00:49:35,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 222. [2024-11-19 00:49:35,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 189 states have (on average 1.291005291005291) internal successors, (244), 190 states have internal predecessors, (244), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-19 00:49:35,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 304 transitions. [2024-11-19 00:49:35,452 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 304 transitions. Word has length 148 [2024-11-19 00:49:35,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:49:35,452 INFO L471 AbstractCegarLoop]: Abstraction has 222 states and 304 transitions. [2024-11-19 00:49:35,453 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:49:35,453 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 304 transitions. [2024-11-19 00:49:35,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-19 00:49:35,454 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:49:35,454 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:49:35,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-19 00:49:35,454 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:49:35,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:49:35,454 INFO L85 PathProgramCache]: Analyzing trace with hash -1634908125, now seen corresponding path program 1 times [2024-11-19 00:49:35,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:49:35,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999710151] [2024-11-19 00:49:35,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:49:35,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:49:35,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:49:35,613 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:49:35,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:49:35,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999710151] [2024-11-19 00:49:35,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999710151] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:49:35,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:49:35,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 00:49:35,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838435142] [2024-11-19 00:49:35,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:49:35,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 00:49:35,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:49:35,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 00:49:35,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 00:49:35,617 INFO L87 Difference]: Start difference. First operand 222 states and 304 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:49:35,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:49:35,707 INFO L93 Difference]: Finished difference Result 467 states and 637 transitions. [2024-11-19 00:49:35,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 00:49:35,708 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 148 [2024-11-19 00:49:35,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:49:35,709 INFO L225 Difference]: With dead ends: 467 [2024-11-19 00:49:35,709 INFO L226 Difference]: Without dead ends: 248 [2024-11-19 00:49:35,711 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 [2024-11-19 00:49:35,711 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 67 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:49:35,711 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 579 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 00:49:35,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2024-11-19 00:49:35,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 222. [2024-11-19 00:49:35,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 189 states have (on average 1.2857142857142858) internal successors, (243), 190 states have internal predecessors, (243), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-19 00:49:35,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 303 transitions. [2024-11-19 00:49:35,728 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 303 transitions. Word has length 148 [2024-11-19 00:49:35,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:49:35,729 INFO L471 AbstractCegarLoop]: Abstraction has 222 states and 303 transitions. [2024-11-19 00:49:35,729 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:49:35,729 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 303 transitions. [2024-11-19 00:49:35,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-19 00:49:35,730 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:49:35,730 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:49:35,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-19 00:49:35,730 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:49:35,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:49:35,730 INFO L85 PathProgramCache]: Analyzing trace with hash 1071711269, now seen corresponding path program 1 times [2024-11-19 00:49:35,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:49:35,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473016518] [2024-11-19 00:49:35,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:49:35,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:49:35,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:49:35,860 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:49:35,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:49:35,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473016518] [2024-11-19 00:49:35,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473016518] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:49:35,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:49:35,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 00:49:35,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724579913] [2024-11-19 00:49:35,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:49:35,861 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 00:49:35,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:49:35,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 00:49:35,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 00:49:35,862 INFO L87 Difference]: Start difference. First operand 222 states and 303 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:49:35,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:49:35,944 INFO L93 Difference]: Finished difference Result 461 states and 627 transitions. [2024-11-19 00:49:35,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 00:49:35,944 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 148 [2024-11-19 00:49:35,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:49:35,947 INFO L225 Difference]: With dead ends: 461 [2024-11-19 00:49:35,947 INFO L226 Difference]: Without dead ends: 242 [2024-11-19 00:49:35,947 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 [2024-11-19 00:49:35,948 INFO L432 NwaCegarLoop]: 172 mSDtfsCounter, 38 mSDsluCounter, 449 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 621 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:49:35,948 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 621 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 00:49:35,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2024-11-19 00:49:35,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 216. [2024-11-19 00:49:35,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 183 states have (on average 1.278688524590164) internal successors, (234), 184 states have internal predecessors, (234), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-19 00:49:35,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 294 transitions. [2024-11-19 00:49:35,974 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 294 transitions. Word has length 148 [2024-11-19 00:49:35,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:49:35,975 INFO L471 AbstractCegarLoop]: Abstraction has 216 states and 294 transitions. [2024-11-19 00:49:35,975 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:49:35,975 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 294 transitions. [2024-11-19 00:49:35,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-19 00:49:35,976 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:49:35,976 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:49:35,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-19 00:49:35,977 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:49:35,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:49:35,977 INFO L85 PathProgramCache]: Analyzing trace with hash -1711229009, now seen corresponding path program 1 times [2024-11-19 00:49:35,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:49:35,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450727935] [2024-11-19 00:49:35,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:49:35,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:49:36,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:49:37,286 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:49:37,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:49:37,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450727935] [2024-11-19 00:49:37,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450727935] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:49:37,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:49:37,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-19 00:49:37,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538750808] [2024-11-19 00:49:37,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:49:37,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-19 00:49:37,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:49:37,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-19 00:49:37,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2024-11-19 00:49:37,288 INFO L87 Difference]: Start difference. First operand 216 states and 294 transitions. Second operand has 15 states, 14 states have (on average 4.071428571428571) internal successors, (57), 15 states have internal predecessors, (57), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-19 00:49:38,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:49:38,988 INFO L93 Difference]: Finished difference Result 621 states and 836 transitions. [2024-11-19 00:49:38,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-19 00:49:38,989 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.071428571428571) internal successors, (57), 15 states have internal predecessors, (57), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) Word has length 149 [2024-11-19 00:49:38,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:49:38,991 INFO L225 Difference]: With dead ends: 621 [2024-11-19 00:49:38,991 INFO L226 Difference]: Without dead ends: 408 [2024-11-19 00:49:38,992 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=160, Invalid=542, Unknown=0, NotChecked=0, Total=702 [2024-11-19 00:49:38,992 INFO L432 NwaCegarLoop]: 204 mSDtfsCounter, 564 mSDsluCounter, 1218 mSDsCounter, 0 mSdLazyCounter, 1048 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 565 SdHoareTripleChecker+Valid, 1422 SdHoareTripleChecker+Invalid, 1179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 1048 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-19 00:49:38,993 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [565 Valid, 1422 Invalid, 1179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 1048 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-19 00:49:38,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2024-11-19 00:49:39,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 233. [2024-11-19 00:49:39,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 200 states have (on average 1.28) internal successors, (256), 201 states have internal predecessors, (256), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-19 00:49:39,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 316 transitions. [2024-11-19 00:49:39,011 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 316 transitions. Word has length 149 [2024-11-19 00:49:39,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:49:39,011 INFO L471 AbstractCegarLoop]: Abstraction has 233 states and 316 transitions. [2024-11-19 00:49:39,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.071428571428571) internal successors, (57), 15 states have internal predecessors, (57), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-19 00:49:39,012 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 316 transitions. [2024-11-19 00:49:39,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-19 00:49:39,013 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:49:39,013 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:49:39,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-19 00:49:39,013 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:49:39,013 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:49:39,013 INFO L85 PathProgramCache]: Analyzing trace with hash -1376348877, now seen corresponding path program 1 times [2024-11-19 00:49:39,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:49:39,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855171431] [2024-11-19 00:49:39,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:49:39,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:49:39,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:49:39,420 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:49:39,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:49:39,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855171431] [2024-11-19 00:49:39,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855171431] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:49:39,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:49:39,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 00:49:39,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808474641] [2024-11-19 00:49:39,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:49:39,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 00:49:39,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:49:39,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 00:49:39,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-19 00:49:39,422 INFO L87 Difference]: Start difference. First operand 233 states and 316 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:49:39,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:49:39,814 INFO L93 Difference]: Finished difference Result 589 states and 794 transitions. [2024-11-19 00:49:39,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 00:49:39,815 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 149 [2024-11-19 00:49:39,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:49:39,817 INFO L225 Difference]: With dead ends: 589 [2024-11-19 00:49:39,818 INFO L226 Difference]: Without dead ends: 359 [2024-11-19 00:49:39,818 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-19 00:49:39,819 INFO L432 NwaCegarLoop]: 257 mSDtfsCounter, 158 mSDsluCounter, 964 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 1221 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 00:49:39,820 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 1221 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 00:49:39,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2024-11-19 00:49:39,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 242. [2024-11-19 00:49:39,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 209 states have (on average 1.2870813397129186) internal successors, (269), 210 states have internal predecessors, (269), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-19 00:49:39,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 329 transitions. [2024-11-19 00:49:39,838 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 329 transitions. Word has length 149 [2024-11-19 00:49:39,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:49:39,838 INFO L471 AbstractCegarLoop]: Abstraction has 242 states and 329 transitions. [2024-11-19 00:49:39,838 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:49:39,839 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 329 transitions. [2024-11-19 00:49:39,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-19 00:49:39,839 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:49:39,840 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:49:39,840 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-19 00:49:39,840 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:49:39,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:49:39,840 INFO L85 PathProgramCache]: Analyzing trace with hash -823684889, now seen corresponding path program 1 times [2024-11-19 00:49:39,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:49:39,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840535013] [2024-11-19 00:49:39,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:49:39,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:49:39,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:49:41,151 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:49:41,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:49:41,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840535013] [2024-11-19 00:49:41,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840535013] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:49:41,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:49:41,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-19 00:49:41,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001561470] [2024-11-19 00:49:41,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:49:41,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-19 00:49:41,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:49:41,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-19 00:49:41,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2024-11-19 00:49:41,154 INFO L87 Difference]: Start difference. First operand 242 states and 329 transitions. Second operand has 15 states, 14 states have (on average 4.142857142857143) internal successors, (58), 15 states have internal predecessors, (58), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-19 00:49:42,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:49:42,534 INFO L93 Difference]: Finished difference Result 560 states and 761 transitions. [2024-11-19 00:49:42,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-19 00:49:42,535 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.142857142857143) internal successors, (58), 15 states have internal predecessors, (58), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 150 [2024-11-19 00:49:42,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:49:42,537 INFO L225 Difference]: With dead ends: 560 [2024-11-19 00:49:42,537 INFO L226 Difference]: Without dead ends: 321 [2024-11-19 00:49:42,537 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=109, Invalid=353, Unknown=0, NotChecked=0, Total=462 [2024-11-19 00:49:42,538 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 433 mSDsluCounter, 648 mSDsCounter, 0 mSdLazyCounter, 887 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 434 SdHoareTripleChecker+Valid, 762 SdHoareTripleChecker+Invalid, 985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 887 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-19 00:49:42,538 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [434 Valid, 762 Invalid, 985 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 887 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-19 00:49:42,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2024-11-19 00:49:42,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 258. [2024-11-19 00:49:42,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 225 states have (on average 1.2933333333333332) internal successors, (291), 226 states have internal predecessors, (291), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-19 00:49:42,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 351 transitions. [2024-11-19 00:49:42,559 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 351 transitions. Word has length 150 [2024-11-19 00:49:42,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:49:42,559 INFO L471 AbstractCegarLoop]: Abstraction has 258 states and 351 transitions. [2024-11-19 00:49:42,559 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.142857142857143) internal successors, (58), 15 states have internal predecessors, (58), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-19 00:49:42,559 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 351 transitions. [2024-11-19 00:49:42,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-19 00:49:42,560 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:49:42,560 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:49:42,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-19 00:49:42,560 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:49:42,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:49:42,561 INFO L85 PathProgramCache]: Analyzing trace with hash -1315522604, now seen corresponding path program 1 times [2024-11-19 00:49:42,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:49:42,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925977204] [2024-11-19 00:49:42,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:49:42,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:49:42,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:49:44,387 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:49:44,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:49:44,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925977204] [2024-11-19 00:49:44,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925977204] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:49:44,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:49:44,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-11-19 00:49:44,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981019047] [2024-11-19 00:49:44,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:49:44,388 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-19 00:49:44,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:49:44,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-19 00:49:44,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=323, Unknown=0, NotChecked=0, Total=380 [2024-11-19 00:49:44,389 INFO L87 Difference]: Start difference. First operand 258 states and 351 transitions. Second operand has 20 states, 20 states have (on average 2.9) internal successors, (58), 20 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:49:47,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:49:47,124 INFO L93 Difference]: Finished difference Result 726 states and 983 transitions. [2024-11-19 00:49:47,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-19 00:49:47,125 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.9) internal successors, (58), 20 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 150 [2024-11-19 00:49:47,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:49:47,127 INFO L225 Difference]: With dead ends: 726 [2024-11-19 00:49:47,127 INFO L226 Difference]: Without dead ends: 471 [2024-11-19 00:49:47,128 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=194, Invalid=928, Unknown=0, NotChecked=0, Total=1122 [2024-11-19 00:49:47,128 INFO L432 NwaCegarLoop]: 162 mSDtfsCounter, 357 mSDsluCounter, 1346 mSDsCounter, 0 mSdLazyCounter, 1590 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 1508 SdHoareTripleChecker+Invalid, 1661 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 1590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-19 00:49:47,129 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [357 Valid, 1508 Invalid, 1661 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 1590 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-19 00:49:47,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2024-11-19 00:49:47,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 282. [2024-11-19 00:49:47,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 249 states have (on average 1.3092369477911647) internal successors, (326), 250 states have internal predecessors, (326), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-19 00:49:47,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 386 transitions. [2024-11-19 00:49:47,151 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 386 transitions. Word has length 150 [2024-11-19 00:49:47,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:49:47,151 INFO L471 AbstractCegarLoop]: Abstraction has 282 states and 386 transitions. [2024-11-19 00:49:47,151 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.9) internal successors, (58), 20 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:49:47,151 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 386 transitions. [2024-11-19 00:49:47,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-19 00:49:47,152 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:49:47,152 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:49:47,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-19 00:49:47,152 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:49:47,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:49:47,153 INFO L85 PathProgramCache]: Analyzing trace with hash 1477137701, now seen corresponding path program 1 times [2024-11-19 00:49:47,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:49:47,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135628852] [2024-11-19 00:49:47,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:49:47,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:49:47,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:49:47,379 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:49:47,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:49:47,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135628852] [2024-11-19 00:49:47,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135628852] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:49:47,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:49:47,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 00:49:47,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758784505] [2024-11-19 00:49:47,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:49:47,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 00:49:47,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:49:47,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 00:49:47,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 00:49:47,382 INFO L87 Difference]: Start difference. First operand 282 states and 386 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:49:47,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:49:47,740 INFO L93 Difference]: Finished difference Result 695 states and 948 transitions. [2024-11-19 00:49:47,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 00:49:47,741 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 150 [2024-11-19 00:49:47,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:49:47,743 INFO L225 Difference]: With dead ends: 695 [2024-11-19 00:49:47,743 INFO L226 Difference]: Without dead ends: 416 [2024-11-19 00:49:47,744 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-19 00:49:47,744 INFO L432 NwaCegarLoop]: 149 mSDtfsCounter, 75 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 00:49:47,745 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 494 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 00:49:47,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2024-11-19 00:49:47,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 290. [2024-11-19 00:49:47,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 257 states have (on average 1.311284046692607) internal successors, (337), 258 states have internal predecessors, (337), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-19 00:49:47,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 397 transitions. [2024-11-19 00:49:47,769 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 397 transitions. Word has length 150 [2024-11-19 00:49:47,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:49:47,770 INFO L471 AbstractCegarLoop]: Abstraction has 290 states and 397 transitions. [2024-11-19 00:49:47,770 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:49:47,770 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 397 transitions. [2024-11-19 00:49:47,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-19 00:49:47,770 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:49:47,770 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:49:47,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-19 00:49:47,771 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:49:47,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:49:47,771 INFO L85 PathProgramCache]: Analyzing trace with hash 197274023, now seen corresponding path program 1 times [2024-11-19 00:49:47,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:49:47,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498511002] [2024-11-19 00:49:47,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:49:47,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:49:47,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:49:48,663 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:49:48,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:49:48,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498511002] [2024-11-19 00:49:48,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498511002] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:49:48,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:49:48,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-19 00:49:48,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571900069] [2024-11-19 00:49:48,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:49:48,665 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-19 00:49:48,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:49:48,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-19 00:49:48,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-11-19 00:49:48,665 INFO L87 Difference]: Start difference. First operand 290 states and 397 transitions. Second operand has 15 states, 14 states have (on average 4.142857142857143) internal successors, (58), 15 states have internal predecessors, (58), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-19 00:49:49,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:49:49,870 INFO L93 Difference]: Finished difference Result 847 states and 1151 transitions. [2024-11-19 00:49:49,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-19 00:49:49,871 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.142857142857143) internal successors, (58), 15 states have internal predecessors, (58), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 150 [2024-11-19 00:49:49,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:49:49,873 INFO L225 Difference]: With dead ends: 847 [2024-11-19 00:49:49,873 INFO L226 Difference]: Without dead ends: 560 [2024-11-19 00:49:49,874 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=99, Invalid=363, Unknown=0, NotChecked=0, Total=462 [2024-11-19 00:49:49,875 INFO L432 NwaCegarLoop]: 157 mSDtfsCounter, 401 mSDsluCounter, 830 mSDsCounter, 0 mSdLazyCounter, 994 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 402 SdHoareTripleChecker+Valid, 987 SdHoareTripleChecker+Invalid, 1087 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 994 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-19 00:49:49,875 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [402 Valid, 987 Invalid, 1087 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 994 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-19 00:49:49,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2024-11-19 00:49:49,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 306. [2024-11-19 00:49:49,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 273 states have (on average 1.3076923076923077) internal successors, (357), 274 states have internal predecessors, (357), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-19 00:49:49,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 417 transitions. [2024-11-19 00:49:49,903 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 417 transitions. Word has length 150 [2024-11-19 00:49:49,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:49:49,903 INFO L471 AbstractCegarLoop]: Abstraction has 306 states and 417 transitions. [2024-11-19 00:49:49,903 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.142857142857143) internal successors, (58), 15 states have internal predecessors, (58), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-19 00:49:49,903 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 417 transitions. [2024-11-19 00:49:49,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-19 00:49:49,904 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:49:49,904 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:49:49,904 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-19 00:49:49,904 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:49:49,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:49:49,905 INFO L85 PathProgramCache]: Analyzing trace with hash -2046485093, now seen corresponding path program 1 times [2024-11-19 00:49:49,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:49:49,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607779555] [2024-11-19 00:49:49,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:49:49,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:49:49,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:49:51,137 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:49:51,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:49:51,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607779555] [2024-11-19 00:49:51,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607779555] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:49:51,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:49:51,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-19 00:49:51,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797780347] [2024-11-19 00:49:51,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:49:51,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-19 00:49:51,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:49:51,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-19 00:49:51,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2024-11-19 00:49:51,139 INFO L87 Difference]: Start difference. First operand 306 states and 417 transitions. Second operand has 18 states, 17 states have (on average 3.411764705882353) internal successors, (58), 18 states have internal predecessors, (58), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-19 00:49:52,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:49:52,883 INFO L93 Difference]: Finished difference Result 746 states and 1013 transitions. [2024-11-19 00:49:52,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-19 00:49:52,884 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.411764705882353) internal successors, (58), 18 states have internal predecessors, (58), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 150 [2024-11-19 00:49:52,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:49:52,888 INFO L225 Difference]: With dead ends: 746 [2024-11-19 00:49:52,888 INFO L226 Difference]: Without dead ends: 443 [2024-11-19 00:49:52,889 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=144, Invalid=668, Unknown=0, NotChecked=0, Total=812 [2024-11-19 00:49:52,898 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 278 mSDsluCounter, 1109 mSDsCounter, 0 mSdLazyCounter, 1392 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 1251 SdHoareTripleChecker+Invalid, 1484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 1392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-19 00:49:52,899 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [279 Valid, 1251 Invalid, 1484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 1392 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-19 00:49:52,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2024-11-19 00:49:52,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 320. [2024-11-19 00:49:52,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 287 states have (on average 1.3031358885017421) internal successors, (374), 288 states have internal predecessors, (374), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-19 00:49:52,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 434 transitions. [2024-11-19 00:49:52,923 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 434 transitions. Word has length 150 [2024-11-19 00:49:52,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:49:52,923 INFO L471 AbstractCegarLoop]: Abstraction has 320 states and 434 transitions. [2024-11-19 00:49:52,924 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.411764705882353) internal successors, (58), 18 states have internal predecessors, (58), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-19 00:49:52,924 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 434 transitions. [2024-11-19 00:49:52,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-19 00:49:52,925 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:49:52,925 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:49:52,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-19 00:49:52,925 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:49:52,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:49:52,925 INFO L85 PathProgramCache]: Analyzing trace with hash 1430833753, now seen corresponding path program 1 times [2024-11-19 00:49:52,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:49:52,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94561815] [2024-11-19 00:49:52,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:49:52,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:49:52,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:49:53,139 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:49:53,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:49:53,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94561815] [2024-11-19 00:49:53,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94561815] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:49:53,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:49:53,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 00:49:53,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171280934] [2024-11-19 00:49:53,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:49:53,140 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 00:49:53,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:49:53,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 00:49:53,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 00:49:53,141 INFO L87 Difference]: Start difference. First operand 320 states and 434 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:49:53,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:49:53,256 INFO L93 Difference]: Finished difference Result 623 states and 848 transitions. [2024-11-19 00:49:53,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 00:49:53,256 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 150 [2024-11-19 00:49:53,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:49:53,258 INFO L225 Difference]: With dead ends: 623 [2024-11-19 00:49:53,258 INFO L226 Difference]: Without dead ends: 306 [2024-11-19 00:49:53,258 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 00:49:53,259 INFO L432 NwaCegarLoop]: 137 mSDtfsCounter, 3 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:49:53,259 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 331 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 00:49:53,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2024-11-19 00:49:53,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 306. [2024-11-19 00:49:53,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 273 states have (on average 1.304029304029304) internal successors, (356), 274 states have internal predecessors, (356), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-19 00:49:53,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 416 transitions. [2024-11-19 00:49:53,286 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 416 transitions. Word has length 150 [2024-11-19 00:49:53,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:49:53,286 INFO L471 AbstractCegarLoop]: Abstraction has 306 states and 416 transitions. [2024-11-19 00:49:53,287 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:49:53,287 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 416 transitions. [2024-11-19 00:49:53,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-19 00:49:53,287 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:49:53,288 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:49:53,288 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-19 00:49:53,288 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:49:53,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:49:53,288 INFO L85 PathProgramCache]: Analyzing trace with hash -2108524707, now seen corresponding path program 1 times [2024-11-19 00:49:53,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:49:53,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807992478] [2024-11-19 00:49:53,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:49:53,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:49:53,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:49:54,331 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:49:54,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:49:54,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807992478] [2024-11-19 00:49:54,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807992478] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:49:54,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:49:54,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-19 00:49:54,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650727734] [2024-11-19 00:49:54,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:49:54,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-19 00:49:54,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:49:54,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-19 00:49:54,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2024-11-19 00:49:54,333 INFO L87 Difference]: Start difference. First operand 306 states and 416 transitions. Second operand has 16 states, 15 states have (on average 3.8666666666666667) internal successors, (58), 16 states have internal predecessors, (58), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-19 00:49:56,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:49:56,108 INFO L93 Difference]: Finished difference Result 731 states and 991 transitions. [2024-11-19 00:49:56,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-19 00:49:56,109 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 3.8666666666666667) internal successors, (58), 16 states have internal predecessors, (58), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 150 [2024-11-19 00:49:56,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:49:56,111 INFO L225 Difference]: With dead ends: 731 [2024-11-19 00:49:56,111 INFO L226 Difference]: Without dead ends: 428 [2024-11-19 00:49:56,112 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=119, Invalid=433, Unknown=0, NotChecked=0, Total=552 [2024-11-19 00:49:56,114 INFO L432 NwaCegarLoop]: 215 mSDtfsCounter, 409 mSDsluCounter, 1069 mSDsCounter, 0 mSdLazyCounter, 1287 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 1284 SdHoareTripleChecker+Invalid, 1375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 1287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-19 00:49:56,114 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [410 Valid, 1284 Invalid, 1375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 1287 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-19 00:49:56,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2024-11-19 00:49:56,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 312. [2024-11-19 00:49:56,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 279 states have (on average 1.3010752688172043) internal successors, (363), 280 states have internal predecessors, (363), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-19 00:49:56,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 423 transitions. [2024-11-19 00:49:56,146 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 423 transitions. Word has length 150 [2024-11-19 00:49:56,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:49:56,147 INFO L471 AbstractCegarLoop]: Abstraction has 312 states and 423 transitions. [2024-11-19 00:49:56,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 3.8666666666666667) internal successors, (58), 16 states have internal predecessors, (58), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-19 00:49:56,147 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 423 transitions. [2024-11-19 00:49:56,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-19 00:49:56,148 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:49:56,148 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:49:56,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-19 00:49:56,148 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:49:56,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:49:56,150 INFO L85 PathProgramCache]: Analyzing trace with hash 1368794139, now seen corresponding path program 1 times [2024-11-19 00:49:56,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:49:56,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649226000] [2024-11-19 00:49:56,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:49:56,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:49:56,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:49:57,624 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:49:57,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:49:57,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649226000] [2024-11-19 00:49:57,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649226000] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:49:57,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:49:57,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-19 00:49:57,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947301112] [2024-11-19 00:49:57,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:49:57,625 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-19 00:49:57,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:49:57,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-19 00:49:57,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2024-11-19 00:49:57,626 INFO L87 Difference]: Start difference. First operand 312 states and 423 transitions. Second operand has 15 states, 13 states have (on average 4.461538461538462) internal successors, (58), 15 states have internal predecessors, (58), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 5 states have call successors, (19) [2024-11-19 00:49:59,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:49:59,116 INFO L93 Difference]: Finished difference Result 679 states and 920 transitions. [2024-11-19 00:49:59,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-19 00:49:59,117 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 4.461538461538462) internal successors, (58), 15 states have internal predecessors, (58), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 5 states have call successors, (19) Word has length 150 [2024-11-19 00:49:59,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:49:59,119 INFO L225 Difference]: With dead ends: 679 [2024-11-19 00:49:59,119 INFO L226 Difference]: Without dead ends: 370 [2024-11-19 00:49:59,120 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=104, Invalid=358, Unknown=0, NotChecked=0, Total=462 [2024-11-19 00:49:59,120 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 177 mSDsluCounter, 997 mSDsCounter, 0 mSdLazyCounter, 1230 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 1162 SdHoareTripleChecker+Invalid, 1256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:49:59,120 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 1162 Invalid, 1256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1230 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-19 00:49:59,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2024-11-19 00:49:59,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 306. [2024-11-19 00:49:59,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 273 states have (on average 1.3003663003663004) internal successors, (355), 274 states have internal predecessors, (355), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-19 00:49:59,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 415 transitions. [2024-11-19 00:49:59,150 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 415 transitions. Word has length 150 [2024-11-19 00:49:59,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:49:59,150 INFO L471 AbstractCegarLoop]: Abstraction has 306 states and 415 transitions. [2024-11-19 00:49:59,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 4.461538461538462) internal successors, (58), 15 states have internal predecessors, (58), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 5 states have call successors, (19) [2024-11-19 00:49:59,150 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 415 transitions. [2024-11-19 00:49:59,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-19 00:49:59,151 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:49:59,155 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:49:59,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-19 00:49:59,156 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:49:59,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:49:59,156 INFO L85 PathProgramCache]: Analyzing trace with hash 562518505, now seen corresponding path program 1 times [2024-11-19 00:49:59,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:49:59,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200513868] [2024-11-19 00:49:59,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:49:59,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:49:59,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:50:00,689 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:50:00,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:50:00,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200513868] [2024-11-19 00:50:00,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200513868] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:50:00,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:50:00,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-19 00:50:00,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568024681] [2024-11-19 00:50:00,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:50:00,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-19 00:50:00,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:50:00,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-19 00:50:00,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2024-11-19 00:50:00,691 INFO L87 Difference]: Start difference. First operand 306 states and 415 transitions. Second operand has 17 states, 16 states have (on average 3.625) internal successors, (58), 17 states have internal predecessors, (58), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-19 00:50:02,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:50:02,814 INFO L93 Difference]: Finished difference Result 676 states and 912 transitions. [2024-11-19 00:50:02,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-19 00:50:02,814 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 3.625) internal successors, (58), 17 states have internal predecessors, (58), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 150 [2024-11-19 00:50:02,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:50:02,816 INFO L225 Difference]: With dead ends: 676 [2024-11-19 00:50:02,816 INFO L226 Difference]: Without dead ends: 373 [2024-11-19 00:50:02,817 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=127, Invalid=523, Unknown=0, NotChecked=0, Total=650 [2024-11-19 00:50:02,818 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 267 mSDsluCounter, 761 mSDsCounter, 0 mSdLazyCounter, 1120 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 874 SdHoareTripleChecker+Invalid, 1183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 1120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-19 00:50:02,818 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 874 Invalid, 1183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 1120 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-19 00:50:02,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2024-11-19 00:50:02,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 301. [2024-11-19 00:50:02,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 268 states have (on average 1.294776119402985) internal successors, (347), 269 states have internal predecessors, (347), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-19 00:50:02,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 407 transitions. [2024-11-19 00:50:02,850 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 407 transitions. Word has length 150 [2024-11-19 00:50:02,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:50:02,851 INFO L471 AbstractCegarLoop]: Abstraction has 301 states and 407 transitions. [2024-11-19 00:50:02,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 3.625) internal successors, (58), 17 states have internal predecessors, (58), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-19 00:50:02,851 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 407 transitions. [2024-11-19 00:50:02,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-19 00:50:02,852 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:50:02,852 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:50:02,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-19 00:50:02,852 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:50:02,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:50:02,852 INFO L85 PathProgramCache]: Analyzing trace with hash 1583477417, now seen corresponding path program 1 times [2024-11-19 00:50:02,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:50:02,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133290769] [2024-11-19 00:50:02,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:50:02,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:50:02,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:50:03,158 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:50:03,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:50:03,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133290769] [2024-11-19 00:50:03,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133290769] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:50:03,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:50:03,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-19 00:50:03,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087972836] [2024-11-19 00:50:03,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:50:03,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-19 00:50:03,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:50:03,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-19 00:50:03,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-11-19 00:50:03,160 INFO L87 Difference]: Start difference. First operand 301 states and 407 transitions. Second operand has 11 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:50:03,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:50:03,817 INFO L93 Difference]: Finished difference Result 661 states and 890 transitions. [2024-11-19 00:50:03,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 00:50:03,818 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 150 [2024-11-19 00:50:03,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:50:03,820 INFO L225 Difference]: With dead ends: 661 [2024-11-19 00:50:03,820 INFO L226 Difference]: Without dead ends: 363 [2024-11-19 00:50:03,820 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2024-11-19 00:50:03,821 INFO L432 NwaCegarLoop]: 185 mSDtfsCounter, 189 mSDsluCounter, 710 mSDsCounter, 0 mSdLazyCounter, 807 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 895 SdHoareTripleChecker+Invalid, 808 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 807 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-19 00:50:03,822 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 895 Invalid, 808 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 807 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-19 00:50:03,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2024-11-19 00:50:03,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 292. [2024-11-19 00:50:03,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 259 states have (on average 1.2934362934362935) internal successors, (335), 260 states have internal predecessors, (335), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-19 00:50:03,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 395 transitions. [2024-11-19 00:50:03,854 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 395 transitions. Word has length 150 [2024-11-19 00:50:03,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:50:03,855 INFO L471 AbstractCegarLoop]: Abstraction has 292 states and 395 transitions. [2024-11-19 00:50:03,855 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:50:03,855 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 395 transitions. [2024-11-19 00:50:03,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-19 00:50:03,856 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:50:03,856 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:50:03,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-19 00:50:03,856 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:50:03,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:50:03,858 INFO L85 PathProgramCache]: Analyzing trace with hash -660281699, now seen corresponding path program 1 times [2024-11-19 00:50:03,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:50:03,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916005869] [2024-11-19 00:50:03,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:50:03,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:50:03,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:50:04,300 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:50:04,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:50:04,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916005869] [2024-11-19 00:50:04,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916005869] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:50:04,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:50:04,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-19 00:50:04,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287165454] [2024-11-19 00:50:04,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:50:04,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-19 00:50:04,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:50:04,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-19 00:50:04,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-11-19 00:50:04,302 INFO L87 Difference]: Start difference. First operand 292 states and 395 transitions. Second operand has 13 states, 13 states have (on average 4.461538461538462) internal successors, (58), 13 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:50:05,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:50:05,047 INFO L93 Difference]: Finished difference Result 763 states and 1028 transitions. [2024-11-19 00:50:05,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-19 00:50:05,048 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.461538461538462) internal successors, (58), 13 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 150 [2024-11-19 00:50:05,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:50:05,050 INFO L225 Difference]: With dead ends: 763 [2024-11-19 00:50:05,050 INFO L226 Difference]: Without dead ends: 474 [2024-11-19 00:50:05,051 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2024-11-19 00:50:05,052 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 312 mSDsluCounter, 665 mSDsCounter, 0 mSdLazyCounter, 810 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 804 SdHoareTripleChecker+Invalid, 857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 810 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-19 00:50:05,052 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [312 Valid, 804 Invalid, 857 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 810 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-19 00:50:05,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2024-11-19 00:50:05,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 245. [2024-11-19 00:50:05,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 223 states have (on average 1.304932735426009) internal successors, (291), 223 states have internal predecessors, (291), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-19 00:50:05,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 329 transitions. [2024-11-19 00:50:05,083 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 329 transitions. Word has length 150 [2024-11-19 00:50:05,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:50:05,083 INFO L471 AbstractCegarLoop]: Abstraction has 245 states and 329 transitions. [2024-11-19 00:50:05,083 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.461538461538462) internal successors, (58), 13 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:50:05,083 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 329 transitions. [2024-11-19 00:50:05,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-19 00:50:05,084 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:50:05,084 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:50:05,084 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-19 00:50:05,084 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:50:05,084 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:50:05,084 INFO L85 PathProgramCache]: Analyzing trace with hash -1681350053, now seen corresponding path program 1 times [2024-11-19 00:50:05,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:50:05,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605534593] [2024-11-19 00:50:05,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:50:05,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:50:05,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:50:05,357 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:50:05,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:50:05,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605534593] [2024-11-19 00:50:05,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605534593] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:50:05,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:50:05,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-19 00:50:05,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602823330] [2024-11-19 00:50:05,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:50:05,358 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 00:50:05,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:50:05,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 00:50:05,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-19 00:50:05,358 INFO L87 Difference]: Start difference. First operand 245 states and 329 transitions. Second operand has 10 states, 10 states have (on average 5.8) internal successors, (58), 10 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:50:05,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:50:05,848 INFO L93 Difference]: Finished difference Result 547 states and 734 transitions. [2024-11-19 00:50:05,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 00:50:05,848 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.8) internal successors, (58), 10 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 150 [2024-11-19 00:50:05,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:50:05,850 INFO L225 Difference]: With dead ends: 547 [2024-11-19 00:50:05,850 INFO L226 Difference]: Without dead ends: 305 [2024-11-19 00:50:05,850 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2024-11-19 00:50:05,851 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 273 mSDsluCounter, 487 mSDsCounter, 0 mSdLazyCounter, 577 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 627 SdHoareTripleChecker+Invalid, 613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 00:50:05,851 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [273 Valid, 627 Invalid, 613 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 577 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 00:50:05,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2024-11-19 00:50:05,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 245. [2024-11-19 00:50:05,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 223 states have (on average 1.3004484304932735) internal successors, (290), 223 states have internal predecessors, (290), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-19 00:50:05,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 328 transitions. [2024-11-19 00:50:05,882 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 328 transitions. Word has length 150 [2024-11-19 00:50:05,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:50:05,882 INFO L471 AbstractCegarLoop]: Abstraction has 245 states and 328 transitions. [2024-11-19 00:50:05,882 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.8) internal successors, (58), 10 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:50:05,882 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 328 transitions. [2024-11-19 00:50:05,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-19 00:50:05,883 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:50:05,883 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:50:05,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-19 00:50:05,883 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:50:05,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:50:05,884 INFO L85 PathProgramCache]: Analyzing trace with hash -1477930149, now seen corresponding path program 1 times [2024-11-19 00:50:05,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:50:05,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501264411] [2024-11-19 00:50:05,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:50:05,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:50:05,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:50:06,642 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:50:06,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:50:06,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501264411] [2024-11-19 00:50:06,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501264411] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:50:06,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:50:06,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-19 00:50:06,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794537220] [2024-11-19 00:50:06,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:50:06,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-19 00:50:06,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:50:06,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-19 00:50:06,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-11-19 00:50:06,644 INFO L87 Difference]: Start difference. First operand 245 states and 328 transitions. Second operand has 13 states, 13 states have (on average 4.461538461538462) internal successors, (58), 13 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:50:07,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:50:07,600 INFO L93 Difference]: Finished difference Result 547 states and 732 transitions. [2024-11-19 00:50:07,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-19 00:50:07,601 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.461538461538462) internal successors, (58), 13 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 150 [2024-11-19 00:50:07,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:50:07,602 INFO L225 Difference]: With dead ends: 547 [2024-11-19 00:50:07,602 INFO L226 Difference]: Without dead ends: 305 [2024-11-19 00:50:07,603 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=240, Unknown=0, NotChecked=0, Total=306 [2024-11-19 00:50:07,603 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 264 mSDsluCounter, 721 mSDsCounter, 0 mSdLazyCounter, 889 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 860 SdHoareTripleChecker+Invalid, 925 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 889 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-19 00:50:07,603 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [264 Valid, 860 Invalid, 925 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 889 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-19 00:50:07,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2024-11-19 00:50:07,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 239. [2024-11-19 00:50:07,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 217 states have (on average 1.294930875576037) internal successors, (281), 217 states have internal predecessors, (281), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-19 00:50:07,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 319 transitions. [2024-11-19 00:50:07,639 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 319 transitions. Word has length 150 [2024-11-19 00:50:07,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:50:07,639 INFO L471 AbstractCegarLoop]: Abstraction has 239 states and 319 transitions. [2024-11-19 00:50:07,640 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.461538461538462) internal successors, (58), 13 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:50:07,640 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 319 transitions. [2024-11-19 00:50:07,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-19 00:50:07,640 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:50:07,640 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:50:07,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-19 00:50:07,641 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:50:07,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:50:07,641 INFO L85 PathProgramCache]: Analyzing trace with hash -975777600, now seen corresponding path program 1 times [2024-11-19 00:50:07,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:50:07,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732391728] [2024-11-19 00:50:07,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:50:07,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:50:07,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:50:08,213 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:50:08,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:50:08,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732391728] [2024-11-19 00:50:08,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732391728] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:50:08,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:50:08,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-19 00:50:08,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495625938] [2024-11-19 00:50:08,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:50:08,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-19 00:50:08,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:50:08,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-19 00:50:08,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-11-19 00:50:08,215 INFO L87 Difference]: Start difference. First operand 239 states and 319 transitions. Second operand has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 12 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:50:09,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:50:09,093 INFO L93 Difference]: Finished difference Result 693 states and 913 transitions. [2024-11-19 00:50:09,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-19 00:50:09,094 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 12 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 150 [2024-11-19 00:50:09,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:50:09,095 INFO L225 Difference]: With dead ends: 693 [2024-11-19 00:50:09,095 INFO L226 Difference]: Without dead ends: 457 [2024-11-19 00:50:09,096 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2024-11-19 00:50:09,096 INFO L432 NwaCegarLoop]: 240 mSDtfsCounter, 214 mSDsluCounter, 1579 mSDsCounter, 0 mSdLazyCounter, 730 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 1819 SdHoareTripleChecker+Invalid, 730 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 730 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-19 00:50:09,096 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 1819 Invalid, 730 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 730 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-19 00:50:09,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2024-11-19 00:50:09,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 300. [2024-11-19 00:50:09,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 278 states have (on average 1.2877697841726619) internal successors, (358), 278 states have internal predecessors, (358), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-19 00:50:09,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 396 transitions. [2024-11-19 00:50:09,129 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 396 transitions. Word has length 150 [2024-11-19 00:50:09,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:50:09,130 INFO L471 AbstractCegarLoop]: Abstraction has 300 states and 396 transitions. [2024-11-19 00:50:09,130 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 12 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:50:09,130 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 396 transitions. [2024-11-19 00:50:09,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-19 00:50:09,131 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:50:09,131 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:50:09,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-19 00:50:09,131 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:50:09,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:50:09,131 INFO L85 PathProgramCache]: Analyzing trace with hash 1513751362, now seen corresponding path program 1 times [2024-11-19 00:50:09,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:50:09,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955239641] [2024-11-19 00:50:09,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:50:09,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:50:09,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:50:10,007 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:50:10,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:50:10,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955239641] [2024-11-19 00:50:10,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955239641] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:50:10,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:50:10,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-19 00:50:10,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936932284] [2024-11-19 00:50:10,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:50:10,009 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-19 00:50:10,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:50:10,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-19 00:50:10,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2024-11-19 00:50:10,010 INFO L87 Difference]: Start difference. First operand 300 states and 396 transitions. Second operand has 15 states, 14 states have (on average 4.142857142857143) internal successors, (58), 15 states have internal predecessors, (58), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-19 00:50:11,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:50:11,414 INFO L93 Difference]: Finished difference Result 807 states and 1050 transitions. [2024-11-19 00:50:11,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 00:50:11,417 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.142857142857143) internal successors, (58), 15 states have internal predecessors, (58), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) Word has length 150 [2024-11-19 00:50:11,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:50:11,419 INFO L225 Difference]: With dead ends: 807 [2024-11-19 00:50:11,419 INFO L226 Difference]: Without dead ends: 510 [2024-11-19 00:50:11,420 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=110, Invalid=490, Unknown=0, NotChecked=0, Total=600 [2024-11-19 00:50:11,420 INFO L432 NwaCegarLoop]: 218 mSDtfsCounter, 252 mSDsluCounter, 1718 mSDsCounter, 0 mSdLazyCounter, 1120 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 1936 SdHoareTripleChecker+Invalid, 1166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-19 00:50:11,420 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 1936 Invalid, 1166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1120 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-19 00:50:11,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2024-11-19 00:50:11,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 295. [2024-11-19 00:50:11,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 273 states have (on average 1.2747252747252746) internal successors, (348), 273 states have internal predecessors, (348), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-19 00:50:11,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 386 transitions. [2024-11-19 00:50:11,455 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 386 transitions. Word has length 150 [2024-11-19 00:50:11,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:50:11,456 INFO L471 AbstractCegarLoop]: Abstraction has 295 states and 386 transitions. [2024-11-19 00:50:11,456 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.142857142857143) internal successors, (58), 15 states have internal predecessors, (58), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-19 00:50:11,456 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 386 transitions. [2024-11-19 00:50:11,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-19 00:50:11,457 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:50:11,457 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:50:11,457 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-19 00:50:11,457 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:50:11,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:50:11,457 INFO L85 PathProgramCache]: Analyzing trace with hash 2141703166, now seen corresponding path program 1 times [2024-11-19 00:50:11,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:50:11,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494820724] [2024-11-19 00:50:11,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:50:11,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:50:11,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:50:12,350 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:50:12,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:50:12,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494820724] [2024-11-19 00:50:12,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494820724] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:50:12,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:50:12,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 00:50:12,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582794763] [2024-11-19 00:50:12,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:50:12,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 00:50:12,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:50:12,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 00:50:12,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-19 00:50:12,352 INFO L87 Difference]: Start difference. First operand 295 states and 386 transitions. Second operand has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:50:12,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:50:12,978 INFO L93 Difference]: Finished difference Result 687 states and 895 transitions. [2024-11-19 00:50:12,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 00:50:12,979 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 150 [2024-11-19 00:50:12,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:50:12,981 INFO L225 Difference]: With dead ends: 687 [2024-11-19 00:50:12,981 INFO L226 Difference]: Without dead ends: 395 [2024-11-19 00:50:12,981 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-19 00:50:12,982 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 322 mSDsluCounter, 567 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 322 SdHoareTripleChecker+Valid, 727 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-19 00:50:12,982 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [322 Valid, 727 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-19 00:50:12,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2024-11-19 00:50:13,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 313. [2024-11-19 00:50:13,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 291 states have (on average 1.274914089347079) internal successors, (371), 291 states have internal predecessors, (371), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-19 00:50:13,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 409 transitions. [2024-11-19 00:50:13,016 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 409 transitions. Word has length 150 [2024-11-19 00:50:13,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:50:13,016 INFO L471 AbstractCegarLoop]: Abstraction has 313 states and 409 transitions. [2024-11-19 00:50:13,016 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:50:13,016 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 409 transitions. [2024-11-19 00:50:13,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-19 00:50:13,017 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:50:13,017 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:50:13,017 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-19 00:50:13,017 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:50:13,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:50:13,018 INFO L85 PathProgramCache]: Analyzing trace with hash 910939077, now seen corresponding path program 1 times [2024-11-19 00:50:13,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:50:13,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329689972] [2024-11-19 00:50:13,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:50:13,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:50:13,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:50:13,495 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:50:13,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:50:13,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329689972] [2024-11-19 00:50:13,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329689972] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:50:13,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:50:13,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 00:50:13,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255446305] [2024-11-19 00:50:13,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:50:13,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 00:50:13,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:50:13,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 00:50:13,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-19 00:50:13,498 INFO L87 Difference]: Start difference. First operand 313 states and 409 transitions. Second operand has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:50:14,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:50:14,096 INFO L93 Difference]: Finished difference Result 729 states and 945 transitions. [2024-11-19 00:50:14,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 00:50:14,100 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 151 [2024-11-19 00:50:14,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:50:14,101 INFO L225 Difference]: With dead ends: 729 [2024-11-19 00:50:14,102 INFO L226 Difference]: Without dead ends: 419 [2024-11-19 00:50:14,102 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2024-11-19 00:50:14,102 INFO L432 NwaCegarLoop]: 204 mSDtfsCounter, 87 mSDsluCounter, 1141 mSDsCounter, 0 mSdLazyCounter, 430 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 1345 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 00:50:14,103 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 1345 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 430 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 00:50:14,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2024-11-19 00:50:14,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 313. [2024-11-19 00:50:14,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 291 states have (on average 1.274914089347079) internal successors, (371), 291 states have internal predecessors, (371), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-19 00:50:14,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 409 transitions. [2024-11-19 00:50:14,137 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 409 transitions. Word has length 151 [2024-11-19 00:50:14,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:50:14,138 INFO L471 AbstractCegarLoop]: Abstraction has 313 states and 409 transitions. [2024-11-19 00:50:14,138 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:50:14,138 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 409 transitions. [2024-11-19 00:50:14,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-19 00:50:14,139 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:50:14,139 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:50:14,139 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-19 00:50:14,139 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:50:14,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:50:14,139 INFO L85 PathProgramCache]: Analyzing trace with hash 692084359, now seen corresponding path program 1 times [2024-11-19 00:50:14,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:50:14,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665586701] [2024-11-19 00:50:14,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:50:14,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:50:14,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:50:14,800 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:50:14,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:50:14,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665586701] [2024-11-19 00:50:14,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665586701] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:50:14,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:50:14,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-19 00:50:14,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911497502] [2024-11-19 00:50:14,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:50:14,801 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-19 00:50:14,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:50:14,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-19 00:50:14,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-11-19 00:50:14,802 INFO L87 Difference]: Start difference. First operand 313 states and 409 transitions. Second operand has 13 states, 13 states have (on average 4.538461538461538) internal successors, (59), 13 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:50:15,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:50:15,779 INFO L93 Difference]: Finished difference Result 681 states and 890 transitions. [2024-11-19 00:50:15,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-19 00:50:15,780 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.538461538461538) internal successors, (59), 13 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 151 [2024-11-19 00:50:15,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:50:15,781 INFO L225 Difference]: With dead ends: 681 [2024-11-19 00:50:15,781 INFO L226 Difference]: Without dead ends: 371 [2024-11-19 00:50:15,782 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=69, Invalid=273, Unknown=0, NotChecked=0, Total=342 [2024-11-19 00:50:15,782 INFO L432 NwaCegarLoop]: 199 mSDtfsCounter, 189 mSDsluCounter, 1287 mSDsCounter, 0 mSdLazyCounter, 891 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 1486 SdHoareTripleChecker+Invalid, 893 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 891 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-19 00:50:15,782 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 1486 Invalid, 893 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 891 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-19 00:50:15,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2024-11-19 00:50:15,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 265. [2024-11-19 00:50:15,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 243 states have (on average 1.300411522633745) internal successors, (316), 243 states have internal predecessors, (316), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-19 00:50:15,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 354 transitions. [2024-11-19 00:50:15,822 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 354 transitions. Word has length 151 [2024-11-19 00:50:15,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:50:15,823 INFO L471 AbstractCegarLoop]: Abstraction has 265 states and 354 transitions. [2024-11-19 00:50:15,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.538461538461538) internal successors, (59), 13 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:50:15,823 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 354 transitions. [2024-11-19 00:50:15,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-19 00:50:15,824 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:50:15,824 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:50:15,824 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-19 00:50:15,824 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:50:15,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:50:15,824 INFO L85 PathProgramCache]: Analyzing trace with hash 1377799030, now seen corresponding path program 1 times [2024-11-19 00:50:15,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:50:15,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038611578] [2024-11-19 00:50:15,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:50:15,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:50:15,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:50:16,080 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:50:16,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:50:16,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038611578] [2024-11-19 00:50:16,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038611578] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:50:16,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:50:16,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 00:50:16,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851235671] [2024-11-19 00:50:16,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:50:16,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 00:50:16,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:50:16,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 00:50:16,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-19 00:50:16,081 INFO L87 Difference]: Start difference. First operand 265 states and 354 transitions. Second operand has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:50:16,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:50:16,270 INFO L93 Difference]: Finished difference Result 609 states and 803 transitions. [2024-11-19 00:50:16,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 00:50:16,270 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 151 [2024-11-19 00:50:16,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:50:16,272 INFO L225 Difference]: With dead ends: 609 [2024-11-19 00:50:16,272 INFO L226 Difference]: Without dead ends: 347 [2024-11-19 00:50:16,273 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-19 00:50:16,273 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 99 mSDsluCounter, 868 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 1034 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:50:16,273 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 1034 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 00:50:16,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2024-11-19 00:50:16,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 283. [2024-11-19 00:50:16,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 261 states have (on average 1.2796934865900382) internal successors, (334), 261 states have internal predecessors, (334), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-19 00:50:16,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 372 transitions. [2024-11-19 00:50:16,308 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 372 transitions. Word has length 151 [2024-11-19 00:50:16,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:50:16,309 INFO L471 AbstractCegarLoop]: Abstraction has 283 states and 372 transitions. [2024-11-19 00:50:16,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:50:16,309 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 372 transitions. [2024-11-19 00:50:16,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-19 00:50:16,310 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:50:16,310 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:50:16,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-19 00:50:16,310 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:50:16,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:50:16,311 INFO L85 PathProgramCache]: Analyzing trace with hash 1800500856, now seen corresponding path program 1 times [2024-11-19 00:50:16,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:50:16,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76613376] [2024-11-19 00:50:16,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:50:16,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:50:16,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:50:16,513 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:50:16,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:50:16,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76613376] [2024-11-19 00:50:16,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76613376] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:50:16,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:50:16,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 00:50:16,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914691703] [2024-11-19 00:50:16,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:50:16,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 00:50:16,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:50:16,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 00:50:16,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 00:50:16,514 INFO L87 Difference]: Start difference. First operand 283 states and 372 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:50:16,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:50:16,626 INFO L93 Difference]: Finished difference Result 587 states and 771 transitions. [2024-11-19 00:50:16,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 00:50:16,627 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 151 [2024-11-19 00:50:16,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:50:16,628 INFO L225 Difference]: With dead ends: 587 [2024-11-19 00:50:16,628 INFO L226 Difference]: Without dead ends: 307 [2024-11-19 00:50:16,629 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-19 00:50:16,629 INFO L432 NwaCegarLoop]: 158 mSDtfsCounter, 117 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:50:16,629 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 574 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 00:50:16,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2024-11-19 00:50:16,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 272. [2024-11-19 00:50:16,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 250 states have (on average 1.288) internal successors, (322), 250 states have internal predecessors, (322), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-19 00:50:16,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 360 transitions. [2024-11-19 00:50:16,664 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 360 transitions. Word has length 151 [2024-11-19 00:50:16,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:50:16,664 INFO L471 AbstractCegarLoop]: Abstraction has 272 states and 360 transitions. [2024-11-19 00:50:16,664 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:50:16,664 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 360 transitions. [2024-11-19 00:50:16,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-19 00:50:16,665 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:50:16,665 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:50:16,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-19 00:50:16,665 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:50:16,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:50:16,666 INFO L85 PathProgramCache]: Analyzing trace with hash 486318856, now seen corresponding path program 1 times [2024-11-19 00:50:16,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:50:16,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098558744] [2024-11-19 00:50:16,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:50:16,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:50:16,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:50:16,851 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:50:16,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:50:16,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098558744] [2024-11-19 00:50:16,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098558744] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:50:16,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:50:16,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 00:50:16,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564532788] [2024-11-19 00:50:16,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:50:16,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 00:50:16,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:50:16,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 00:50:16,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 00:50:16,853 INFO L87 Difference]: Start difference. First operand 272 states and 360 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:50:16,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:50:16,992 INFO L93 Difference]: Finished difference Result 560 states and 742 transitions. [2024-11-19 00:50:16,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 00:50:16,992 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 151 [2024-11-19 00:50:16,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:50:16,993 INFO L225 Difference]: With dead ends: 560 [2024-11-19 00:50:16,993 INFO L226 Difference]: Without dead ends: 289 [2024-11-19 00:50:16,994 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-19 00:50:16,994 INFO L432 NwaCegarLoop]: 189 mSDtfsCounter, 135 mSDsluCounter, 458 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 647 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:50:16,995 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 647 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 00:50:16,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2024-11-19 00:50:17,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 263. [2024-11-19 00:50:17,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 241 states have (on average 1.2904564315352698) internal successors, (311), 241 states have internal predecessors, (311), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-19 00:50:17,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 349 transitions. [2024-11-19 00:50:17,030 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 349 transitions. Word has length 151 [2024-11-19 00:50:17,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:50:17,032 INFO L471 AbstractCegarLoop]: Abstraction has 263 states and 349 transitions. [2024-11-19 00:50:17,032 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:50:17,032 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 349 transitions. [2024-11-19 00:50:17,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-19 00:50:17,033 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:50:17,033 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:50:17,033 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-19 00:50:17,033 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:50:17,034 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:50:17,034 INFO L85 PathProgramCache]: Analyzing trace with hash -1202624886, now seen corresponding path program 1 times [2024-11-19 00:50:17,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:50:17,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421390551] [2024-11-19 00:50:17,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:50:17,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:50:17,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:50:17,218 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:50:17,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:50:17,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421390551] [2024-11-19 00:50:17,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421390551] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:50:17,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:50:17,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 00:50:17,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703458225] [2024-11-19 00:50:17,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:50:17,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 00:50:17,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:50:17,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 00:50:17,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 00:50:17,220 INFO L87 Difference]: Start difference. First operand 263 states and 349 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:50:17,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:50:17,350 INFO L93 Difference]: Finished difference Result 548 states and 726 transitions. [2024-11-19 00:50:17,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 00:50:17,351 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 151 [2024-11-19 00:50:17,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:50:17,352 INFO L225 Difference]: With dead ends: 548 [2024-11-19 00:50:17,352 INFO L226 Difference]: Without dead ends: 288 [2024-11-19 00:50:17,353 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-19 00:50:17,353 INFO L432 NwaCegarLoop]: 199 mSDtfsCounter, 72 mSDsluCounter, 606 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 805 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:50:17,353 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 805 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 00:50:17,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2024-11-19 00:50:17,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 258. [2024-11-19 00:50:17,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 236 states have (on average 1.2923728813559323) internal successors, (305), 236 states have internal predecessors, (305), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-19 00:50:17,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 343 transitions. [2024-11-19 00:50:17,389 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 343 transitions. Word has length 151 [2024-11-19 00:50:17,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:50:17,389 INFO L471 AbstractCegarLoop]: Abstraction has 258 states and 343 transitions. [2024-11-19 00:50:17,389 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:50:17,389 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 343 transitions. [2024-11-19 00:50:17,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-19 00:50:17,390 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:50:17,390 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:50:17,390 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-19 00:50:17,391 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:50:17,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:50:17,391 INFO L85 PathProgramCache]: Analyzing trace with hash 962728194, now seen corresponding path program 1 times [2024-11-19 00:50:17,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:50:17,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574351980] [2024-11-19 00:50:17,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:50:17,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:50:17,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:50:18,217 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:50:18,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:50:18,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574351980] [2024-11-19 00:50:18,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574351980] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:50:18,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:50:18,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-19 00:50:18,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685044208] [2024-11-19 00:50:18,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:50:18,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-19 00:50:18,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:50:18,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-19 00:50:18,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2024-11-19 00:50:18,219 INFO L87 Difference]: Start difference. First operand 258 states and 343 transitions. Second operand has 15 states, 14 states have (on average 4.285714285714286) internal successors, (60), 15 states have internal predecessors, (60), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-19 00:50:19,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:50:19,311 INFO L93 Difference]: Finished difference Result 617 states and 818 transitions. [2024-11-19 00:50:19,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-19 00:50:19,311 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.285714285714286) internal successors, (60), 15 states have internal predecessors, (60), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 152 [2024-11-19 00:50:19,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:50:19,313 INFO L225 Difference]: With dead ends: 617 [2024-11-19 00:50:19,313 INFO L226 Difference]: Without dead ends: 362 [2024-11-19 00:50:19,314 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=106, Invalid=446, Unknown=0, NotChecked=0, Total=552 [2024-11-19 00:50:19,314 INFO L432 NwaCegarLoop]: 121 mSDtfsCounter, 304 mSDsluCounter, 840 mSDsCounter, 0 mSdLazyCounter, 904 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 961 SdHoareTripleChecker+Invalid, 970 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 904 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-19 00:50:19,314 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [305 Valid, 961 Invalid, 970 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 904 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-19 00:50:19,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2024-11-19 00:50:19,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 286. [2024-11-19 00:50:19,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 264 states have (on average 1.303030303030303) internal successors, (344), 264 states have internal predecessors, (344), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-19 00:50:19,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 382 transitions. [2024-11-19 00:50:19,349 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 382 transitions. Word has length 152 [2024-11-19 00:50:19,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:50:19,350 INFO L471 AbstractCegarLoop]: Abstraction has 286 states and 382 transitions. [2024-11-19 00:50:19,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.285714285714286) internal successors, (60), 15 states have internal predecessors, (60), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-19 00:50:19,350 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 382 transitions. [2024-11-19 00:50:19,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-19 00:50:19,351 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:50:19,351 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:50:19,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-19 00:50:19,351 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:50:19,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:50:19,352 INFO L85 PathProgramCache]: Analyzing trace with hash -317135484, now seen corresponding path program 1 times [2024-11-19 00:50:19,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:50:19,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855928722] [2024-11-19 00:50:19,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:50:19,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:50:19,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:50:19,559 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:50:19,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:50:19,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855928722] [2024-11-19 00:50:19,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855928722] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:50:19,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:50:19,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 00:50:19,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661105373] [2024-11-19 00:50:19,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:50:19,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 00:50:19,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:50:19,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 00:50:19,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 00:50:19,561 INFO L87 Difference]: Start difference. First operand 286 states and 382 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:50:19,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:50:19,908 INFO L93 Difference]: Finished difference Result 643 states and 853 transitions. [2024-11-19 00:50:19,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 00:50:19,909 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 152 [2024-11-19 00:50:19,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:50:19,910 INFO L225 Difference]: With dead ends: 643 [2024-11-19 00:50:19,910 INFO L226 Difference]: Without dead ends: 360 [2024-11-19 00:50:19,911 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-19 00:50:19,911 INFO L432 NwaCegarLoop]: 184 mSDtfsCounter, 73 mSDsluCounter, 518 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 702 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 00:50:19,912 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 702 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 00:50:19,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2024-11-19 00:50:19,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 286. [2024-11-19 00:50:19,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 264 states have (on average 1.2878787878787878) internal successors, (340), 264 states have internal predecessors, (340), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-19 00:50:19,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 378 transitions. [2024-11-19 00:50:19,966 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 378 transitions. Word has length 152 [2024-11-19 00:50:19,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:50:19,967 INFO L471 AbstractCegarLoop]: Abstraction has 286 states and 378 transitions. [2024-11-19 00:50:19,967 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:50:19,967 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 378 transitions. [2024-11-19 00:50:19,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-19 00:50:19,968 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:50:19,969 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:50:19,969 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-11-19 00:50:19,969 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:50:19,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:50:19,969 INFO L85 PathProgramCache]: Analyzing trace with hash 1154854978, now seen corresponding path program 1 times [2024-11-19 00:50:19,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:50:19,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605501261] [2024-11-19 00:50:19,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:50:19,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:50:20,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:50:21,102 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:50:21,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:50:21,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605501261] [2024-11-19 00:50:21,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605501261] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:50:21,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:50:21,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-19 00:50:21,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972286416] [2024-11-19 00:50:21,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:50:21,103 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-19 00:50:21,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:50:21,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-19 00:50:21,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2024-11-19 00:50:21,103 INFO L87 Difference]: Start difference. First operand 286 states and 378 transitions. Second operand has 16 states, 15 states have (on average 4.0) internal successors, (60), 16 states have internal predecessors, (60), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-19 00:50:22,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:50:22,389 INFO L93 Difference]: Finished difference Result 613 states and 803 transitions. [2024-11-19 00:50:22,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-19 00:50:22,389 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.0) internal successors, (60), 16 states have internal predecessors, (60), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) Word has length 152 [2024-11-19 00:50:22,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:50:22,391 INFO L225 Difference]: With dead ends: 613 [2024-11-19 00:50:22,391 INFO L226 Difference]: Without dead ends: 326 [2024-11-19 00:50:22,391 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=120, Invalid=432, Unknown=0, NotChecked=0, Total=552 [2024-11-19 00:50:22,392 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 340 mSDsluCounter, 727 mSDsCounter, 0 mSdLazyCounter, 1052 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 341 SdHoareTripleChecker+Valid, 850 SdHoareTripleChecker+Invalid, 1139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 1052 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-19 00:50:22,392 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [341 Valid, 850 Invalid, 1139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 1052 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-19 00:50:22,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2024-11-19 00:50:22,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 260. [2024-11-19 00:50:22,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 238 states have (on average 1.26890756302521) internal successors, (302), 238 states have internal predecessors, (302), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-19 00:50:22,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 340 transitions. [2024-11-19 00:50:22,434 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 340 transitions. Word has length 152 [2024-11-19 00:50:22,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:50:22,434 INFO L471 AbstractCegarLoop]: Abstraction has 260 states and 340 transitions. [2024-11-19 00:50:22,435 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.0) internal successors, (60), 16 states have internal predecessors, (60), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-19 00:50:22,435 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 340 transitions. [2024-11-19 00:50:22,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-19 00:50:22,435 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:50:22,435 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:50:22,436 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-11-19 00:50:22,436 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:50:22,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:50:22,436 INFO L85 PathProgramCache]: Analyzing trace with hash -2119153406, now seen corresponding path program 1 times [2024-11-19 00:50:22,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:50:22,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028585577] [2024-11-19 00:50:22,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:50:22,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:50:22,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:50:22,699 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:50:22,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:50:22,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028585577] [2024-11-19 00:50:22,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028585577] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:50:22,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:50:22,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-19 00:50:22,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961115445] [2024-11-19 00:50:22,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:50:22,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 00:50:22,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:50:22,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 00:50:22,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-19 00:50:22,701 INFO L87 Difference]: Start difference. First operand 260 states and 340 transitions. Second operand has 10 states, 10 states have (on average 6.0) internal successors, (60), 10 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:50:23,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:50:23,001 INFO L93 Difference]: Finished difference Result 565 states and 739 transitions. [2024-11-19 00:50:23,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 00:50:23,001 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.0) internal successors, (60), 10 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 152 [2024-11-19 00:50:23,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:50:23,002 INFO L225 Difference]: With dead ends: 565 [2024-11-19 00:50:23,002 INFO L226 Difference]: Without dead ends: 308 [2024-11-19 00:50:23,003 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2024-11-19 00:50:23,003 INFO L432 NwaCegarLoop]: 205 mSDtfsCounter, 82 mSDsluCounter, 1465 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 1670 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 00:50:23,003 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 1670 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 00:50:23,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2024-11-19 00:50:23,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 248. [2024-11-19 00:50:23,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 226 states have (on average 1.2699115044247788) internal successors, (287), 226 states have internal predecessors, (287), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-19 00:50:23,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 325 transitions. [2024-11-19 00:50:23,040 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 325 transitions. Word has length 152 [2024-11-19 00:50:23,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:50:23,040 INFO L471 AbstractCegarLoop]: Abstraction has 248 states and 325 transitions. [2024-11-19 00:50:23,040 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.0) internal successors, (60), 10 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:50:23,040 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 325 transitions. [2024-11-19 00:50:23,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-19 00:50:23,041 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:50:23,041 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:50:23,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-11-19 00:50:23,042 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:50:23,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:50:23,042 INFO L85 PathProgramCache]: Analyzing trace with hash -2028771022, now seen corresponding path program 1 times [2024-11-19 00:50:23,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:50:23,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619843071] [2024-11-19 00:50:23,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:50:23,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:50:23,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:50:23,430 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:50:23,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:50:23,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619843071] [2024-11-19 00:50:23,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619843071] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:50:23,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:50:23,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 00:50:23,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186993168] [2024-11-19 00:50:23,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:50:23,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 00:50:23,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:50:23,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 00:50:23,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-19 00:50:23,432 INFO L87 Difference]: Start difference. First operand 248 states and 325 transitions. Second operand has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:50:23,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:50:23,912 INFO L93 Difference]: Finished difference Result 425 states and 545 transitions. [2024-11-19 00:50:23,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-19 00:50:23,913 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 152 [2024-11-19 00:50:23,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:50:23,915 INFO L225 Difference]: With dead ends: 425 [2024-11-19 00:50:23,915 INFO L226 Difference]: Without dead ends: 423 [2024-11-19 00:50:23,915 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2024-11-19 00:50:23,916 INFO L432 NwaCegarLoop]: 154 mSDtfsCounter, 165 mSDsluCounter, 670 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 824 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 00:50:23,916 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 824 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 00:50:23,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2024-11-19 00:50:23,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 251. [2024-11-19 00:50:23,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 229 states have (on average 1.2663755458515285) internal successors, (290), 229 states have internal predecessors, (290), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-19 00:50:23,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 328 transitions. [2024-11-19 00:50:23,955 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 328 transitions. Word has length 152 [2024-11-19 00:50:23,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:50:23,955 INFO L471 AbstractCegarLoop]: Abstraction has 251 states and 328 transitions. [2024-11-19 00:50:23,955 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:50:23,955 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 328 transitions. [2024-11-19 00:50:23,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-19 00:50:23,956 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:50:23,956 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:50:23,956 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-11-19 00:50:23,956 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:50:23,956 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:50:23,956 INFO L85 PathProgramCache]: Analyzing trace with hash -2026923980, now seen corresponding path program 1 times [2024-11-19 00:50:23,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:50:23,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490846189] [2024-11-19 00:50:23,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:50:23,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:50:23,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:50:24,180 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:50:24,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:50:24,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490846189] [2024-11-19 00:50:24,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490846189] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:50:24,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:50:24,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 00:50:24,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834107743] [2024-11-19 00:50:24,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:50:24,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 00:50:24,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:50:24,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 00:50:24,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-19 00:50:24,182 INFO L87 Difference]: Start difference. First operand 251 states and 328 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-19 00:50:24,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:50:24,356 INFO L93 Difference]: Finished difference Result 517 states and 676 transitions. [2024-11-19 00:50:24,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 00:50:24,356 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 152 [2024-11-19 00:50:24,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:50:24,358 INFO L225 Difference]: With dead ends: 517 [2024-11-19 00:50:24,358 INFO L226 Difference]: Without dead ends: 269 [2024-11-19 00:50:24,358 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-11-19 00:50:24,359 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 166 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:50:24,359 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 492 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 00:50:24,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2024-11-19 00:50:24,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 268. [2024-11-19 00:50:24,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 239 states have (on average 1.2510460251046025) internal successors, (299), 240 states have internal predecessors, (299), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-19 00:50:24,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 349 transitions. [2024-11-19 00:50:24,423 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 349 transitions. Word has length 152 [2024-11-19 00:50:24,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:50:24,423 INFO L471 AbstractCegarLoop]: Abstraction has 268 states and 349 transitions. [2024-11-19 00:50:24,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-19 00:50:24,423 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 349 transitions. [2024-11-19 00:50:24,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-19 00:50:24,424 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:50:24,424 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:50:24,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2024-11-19 00:50:24,424 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:50:24,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:50:24,425 INFO L85 PathProgramCache]: Analyzing trace with hash -251916618, now seen corresponding path program 1 times [2024-11-19 00:50:24,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:50:24,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424388100] [2024-11-19 00:50:24,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:50:24,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:50:24,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:50:24,533 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2024-11-19 00:50:24,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:50:24,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424388100] [2024-11-19 00:50:24,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424388100] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 00:50:24,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [383246223] [2024-11-19 00:50:24,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:50:24,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:50:24,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:50:24,535 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) [2024-11-19 00:50:24,535 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 00:50:24,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:50:24,716 INFO L255 TraceCheckSpWp]: Trace formula consists of 529 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 00:50:24,720 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 00:50:24,752 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:50:24,752 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 00:50:24,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [383246223] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:50:24,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 00:50:24,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 8 [2024-11-19 00:50:24,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129695882] [2024-11-19 00:50:24,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:50:24,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 00:50:24,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:50:24,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 00:50:24,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-19 00:50:24,754 INFO L87 Difference]: Start difference. First operand 268 states and 349 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:50:24,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:50:24,849 INFO L93 Difference]: Finished difference Result 523 states and 680 transitions. [2024-11-19 00:50:24,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 00:50:24,849 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 152 [2024-11-19 00:50:24,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:50:24,851 INFO L225 Difference]: With dead ends: 523 [2024-11-19 00:50:24,851 INFO L226 Difference]: Without dead ends: 271 [2024-11-19 00:50:24,851 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-19 00:50:24,852 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 0 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 00:50:24,852 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 541 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 00:50:24,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2024-11-19 00:50:24,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 271. [2024-11-19 00:50:24,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 242 states have (on average 1.2479338842975207) internal successors, (302), 243 states have internal predecessors, (302), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-19 00:50:24,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 352 transitions. [2024-11-19 00:50:24,914 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 352 transitions. Word has length 152 [2024-11-19 00:50:24,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:50:24,914 INFO L471 AbstractCegarLoop]: Abstraction has 271 states and 352 transitions. [2024-11-19 00:50:24,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:50:24,914 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 352 transitions. [2024-11-19 00:50:24,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-19 00:50:24,915 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:50:24,915 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:50:24,930 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-19 00:50:25,119 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,SelfDestructingSolverStorable46 [2024-11-19 00:50:25,120 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:50:25,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:50:25,120 INFO L85 PathProgramCache]: Analyzing trace with hash -2021980645, now seen corresponding path program 1 times [2024-11-19 00:50:25,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:50:25,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243565394] [2024-11-19 00:50:25,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:50:25,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:50:25,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:50:25,494 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:50:25,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:50:25,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243565394] [2024-11-19 00:50:25,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243565394] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:50:25,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:50:25,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 00:50:25,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699116265] [2024-11-19 00:50:25,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:50:25,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 00:50:25,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:50:25,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 00:50:25,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-19 00:50:25,495 INFO L87 Difference]: Start difference. First operand 271 states and 352 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:50:25,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:50:25,965 INFO L93 Difference]: Finished difference Result 678 states and 865 transitions. [2024-11-19 00:50:25,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 00:50:25,966 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 154 [2024-11-19 00:50:25,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:50:25,967 INFO L225 Difference]: With dead ends: 678 [2024-11-19 00:50:25,967 INFO L226 Difference]: Without dead ends: 423 [2024-11-19 00:50:25,968 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2024-11-19 00:50:25,968 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 209 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 00:50:25,968 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 390 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 00:50:25,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2024-11-19 00:50:26,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 420. [2024-11-19 00:50:26,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 378 states have (on average 1.216931216931217) internal successors, (460), 380 states have internal predecessors, (460), 36 states have call successors, (36), 5 states have call predecessors, (36), 5 states have return successors, (36), 34 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-19 00:50:26,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 532 transitions. [2024-11-19 00:50:26,063 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 532 transitions. Word has length 154 [2024-11-19 00:50:26,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:50:26,063 INFO L471 AbstractCegarLoop]: Abstraction has 420 states and 532 transitions. [2024-11-19 00:50:26,063 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:50:26,064 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 532 transitions. [2024-11-19 00:50:26,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-19 00:50:26,064 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:50:26,064 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:50:26,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2024-11-19 00:50:26,065 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:50:26,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:50:26,065 INFO L85 PathProgramCache]: Analyzing trace with hash 1686180637, now seen corresponding path program 1 times [2024-11-19 00:50:26,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:50:26,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240243683] [2024-11-19 00:50:26,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:50:26,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:50:26,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:50:26,823 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:50:26,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:50:26,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240243683] [2024-11-19 00:50:26,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240243683] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:50:26,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:50:26,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-19 00:50:26,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467646488] [2024-11-19 00:50:26,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:50:26,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 00:50:26,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:50:26,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 00:50:26,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-19 00:50:26,825 INFO L87 Difference]: Start difference. First operand 420 states and 532 transitions. Second operand has 10 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:50:27,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:50:27,850 INFO L93 Difference]: Finished difference Result 980 states and 1230 transitions. [2024-11-19 00:50:27,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 00:50:27,850 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 154 [2024-11-19 00:50:27,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:50:27,852 INFO L225 Difference]: With dead ends: 980 [2024-11-19 00:50:27,852 INFO L226 Difference]: Without dead ends: 576 [2024-11-19 00:50:27,853 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2024-11-19 00:50:27,853 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 196 mSDsluCounter, 599 mSDsCounter, 0 mSdLazyCounter, 612 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 752 SdHoareTripleChecker+Invalid, 634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-19 00:50:27,853 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 752 Invalid, 634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 612 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-19 00:50:27,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 576 states. [2024-11-19 00:50:27,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 576 to 480. [2024-11-19 00:50:27,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480 states, 445 states have (on average 1.2157303370786516) internal successors, (541), 446 states have internal predecessors, (541), 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) [2024-11-19 00:50:27,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 601 transitions. [2024-11-19 00:50:27,930 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 601 transitions. Word has length 154 [2024-11-19 00:50:27,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:50:27,931 INFO L471 AbstractCegarLoop]: Abstraction has 480 states and 601 transitions. [2024-11-19 00:50:27,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:50:27,931 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 601 transitions. [2024-11-19 00:50:27,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-19 00:50:27,931 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:50:27,932 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:50:27,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2024-11-19 00:50:27,932 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:50:27,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:50:27,932 INFO L85 PathProgramCache]: Analyzing trace with hash 1763513561, now seen corresponding path program 1 times [2024-11-19 00:50:27,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:50:27,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656065096] [2024-11-19 00:50:27,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:50:27,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:50:27,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat