./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-71.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_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 afdbc11a14d78cfc3e8e425320a4468be878b1004162e6354634b69484bbf0df --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 12:37:10,345 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 12:37:10,438 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 12:37:10,444 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 12:37:10,445 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 12:37:10,475 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 12:37:10,476 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 12:37:10,476 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 12:37:10,477 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 12:37:10,477 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 12:37:10,478 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 12:37:10,478 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 12:37:10,478 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 12:37:10,479 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 12:37:10,479 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 12:37:10,480 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 12:37:10,480 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 12:37:10,480 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 12:37:10,481 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 12:37:10,481 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 12:37:10,481 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 12:37:10,482 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 12:37:10,482 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 12:37:10,483 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 12:37:10,483 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 12:37:10,483 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 12:37:10,483 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 12:37:10,484 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 12:37:10,484 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 12:37:10,484 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 12:37:10,484 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 12:37:10,485 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 12:37:10,485 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 12:37:10,485 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 12:37:10,485 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 12:37:10,486 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 12:37:10,486 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 12:37:10,487 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 12:37:10,487 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 12:37:10,487 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 12:37:10,488 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 12:37:10,488 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 12:37:10,488 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> afdbc11a14d78cfc3e8e425320a4468be878b1004162e6354634b69484bbf0df [2024-11-22 12:37:10,737 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 12:37:10,760 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 12:37:10,762 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 12:37:10,763 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 12:37:10,764 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 12:37:10,765 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-71.i [2024-11-22 12:37:12,156 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 12:37:12,357 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 12:37:12,358 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-71.i [2024-11-22 12:37:12,384 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e65f906b/336f33ffc90341928858b2d63fd9309b/FLAG6cde21879 [2024-11-22 12:37:12,397 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e65f906b/336f33ffc90341928858b2d63fd9309b [2024-11-22 12:37:12,399 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 12:37:12,400 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 12:37:12,402 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 12:37:12,402 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 12:37:12,408 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 12:37:12,408 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:37:12" (1/1) ... [2024-11-22 12:37:12,409 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56e0d642 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:37:12, skipping insertion in model container [2024-11-22 12:37:12,409 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:37:12" (1/1) ... [2024-11-22 12:37:12,449 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 12:37:12,622 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-a_file-71.i[916,929] [2024-11-22 12:37:12,682 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 12:37:12,691 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 12:37:12,701 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-a_file-71.i[916,929] [2024-11-22 12:37:12,742 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 12:37:12,763 INFO L204 MainTranslator]: Completed translation [2024-11-22 12:37:12,763 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:37:12 WrapperNode [2024-11-22 12:37:12,763 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 12:37:12,764 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 12:37:12,764 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 12:37:12,765 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 12:37:12,775 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:37:12" (1/1) ... [2024-11-22 12:37:12,792 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:37:12" (1/1) ... [2024-11-22 12:37:12,850 INFO L138 Inliner]: procedures = 26, calls = 173, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 495 [2024-11-22 12:37:12,851 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 12:37:12,852 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 12:37:12,852 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 12:37:12,852 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 12:37:12,862 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:37:12" (1/1) ... [2024-11-22 12:37:12,863 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:37:12" (1/1) ... [2024-11-22 12:37:12,874 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:37:12" (1/1) ... [2024-11-22 12:37:12,903 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]. [2024-11-22 12:37:12,904 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:37:12" (1/1) ... [2024-11-22 12:37:12,904 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:37:12" (1/1) ... [2024-11-22 12:37:12,934 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:37:12" (1/1) ... [2024-11-22 12:37:12,940 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:37:12" (1/1) ... [2024-11-22 12:37:12,948 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:37:12" (1/1) ... [2024-11-22 12:37:12,955 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:37:12" (1/1) ... [2024-11-22 12:37:12,971 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 12:37:12,975 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 12:37:12,975 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 12:37:12,975 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 12:37:12,976 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:37:12" (1/1) ... [2024-11-22 12:37:12,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 12:37:12,993 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 12:37:13,013 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-22 12:37:13,016 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-22 12:37:13,068 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 12:37:13,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-22 12:37:13,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-22 12:37:13,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-22 12:37:13,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-22 12:37:13,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-22 12:37:13,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-22 12:37:13,070 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-22 12:37:13,070 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-22 12:37:13,070 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-22 12:37:13,070 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-22 12:37:13,070 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-22 12:37:13,070 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-22 12:37:13,070 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-22 12:37:13,070 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-22 12:37:13,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 12:37:13,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-22 12:37:13,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-22 12:37:13,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-22 12:37:13,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-22 12:37:13,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-22 12:37:13,071 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 12:37:13,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 12:37:13,226 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 12:37:13,231 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 12:37:13,749 INFO L? ?]: Removed 126 outVars from TransFormulas that were not future-live. [2024-11-22 12:37:13,749 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 12:37:13,766 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 12:37:13,766 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 12:37:13,767 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:37:13 BoogieIcfgContainer [2024-11-22 12:37:13,767 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 12:37:13,768 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 12:37:13,769 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 12:37:13,772 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 12:37:13,772 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:37:12" (1/3) ... [2024-11-22 12:37:13,773 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19920a2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:37:13, skipping insertion in model container [2024-11-22 12:37:13,773 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:37:12" (2/3) ... [2024-11-22 12:37:13,773 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19920a2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:37:13, skipping insertion in model container [2024-11-22 12:37:13,773 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:37:13" (3/3) ... [2024-11-22 12:37:13,775 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-71.i [2024-11-22 12:37:13,790 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 12:37:13,791 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 12:37:13,848 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 12:37:13,853 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;@603fa46d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 12:37:13,854 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 12:37:13,858 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) [2024-11-22 12:37:13,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-22 12:37:13,873 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:37:13,874 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] [2024-11-22 12:37:13,874 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:37:13,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:37:13,881 INFO L85 PathProgramCache]: Analyzing trace with hash 634959908, now seen corresponding path program 1 times [2024-11-22 12:37:13,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:37:13,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132403554] [2024-11-22 12:37:13,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:37:13,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:37:14,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:37:14,234 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2024-11-22 12:37:14,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:37:14,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132403554] [2024-11-22 12:37:14,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132403554] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 12:37:14,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [990317224] [2024-11-22 12:37:14,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:37:14,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 12:37:14,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 12:37:14,242 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 12:37:14,248 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 12:37:14,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:37:14,491 INFO L255 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-22 12:37:14,501 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 12:37:14,540 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2024-11-22 12:37:14,540 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 12:37:14,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [990317224] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:37:14,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 12:37:14,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-22 12:37:14,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79101762] [2024-11-22 12:37:14,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:37:14,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 12:37:14,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:37:14,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 12:37:14,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 12:37:14,580 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) [2024-11-22 12:37:14,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:37:14,653 INFO L93 Difference]: Finished difference Result 203 states and 319 transitions. [2024-11-22 12:37:14,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 12:37:14,677 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 [2024-11-22 12:37:14,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:37:14,689 INFO L225 Difference]: With dead ends: 203 [2024-11-22 12:37:14,689 INFO L226 Difference]: Without dead ends: 101 [2024-11-22 12:37:14,693 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 [2024-11-22 12:37:14,696 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 [2024-11-22 12:37:14,699 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] [2024-11-22 12:37:14,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-11-22 12:37:14,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2024-11-22 12:37:14,745 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) [2024-11-22 12:37:14,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 144 transitions. [2024-11-22 12:37:14,749 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 144 transitions. Word has length 144 [2024-11-22 12:37:14,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:37:14,749 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 144 transitions. [2024-11-22 12:37:14,750 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) [2024-11-22 12:37:14,750 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 144 transitions. [2024-11-22 12:37:14,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-22 12:37:14,753 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:37:14,753 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] [2024-11-22 12:37:14,763 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-22 12:37:14,954 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-22 12:37:14,954 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:37:14,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:37:14,955 INFO L85 PathProgramCache]: Analyzing trace with hash 1640475338, now seen corresponding path program 1 times [2024-11-22 12:37:14,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:37:14,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324639542] [2024-11-22 12:37:14,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:37:14,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:37:15,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:37:15,264 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-22 12:37:15,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:37:15,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324639542] [2024-11-22 12:37:15,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324639542] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:37:15,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:37:15,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 12:37:15,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950694693] [2024-11-22 12:37:15,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:37:15,270 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 12:37:15,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:37:15,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 12:37:15,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 12:37:15,273 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) [2024-11-22 12:37:15,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:37:15,336 INFO L93 Difference]: Finished difference Result 202 states and 289 transitions. [2024-11-22 12:37:15,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 12:37:15,338 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 [2024-11-22 12:37:15,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:37:15,340 INFO L225 Difference]: With dead ends: 202 [2024-11-22 12:37:15,340 INFO L226 Difference]: Without dead ends: 104 [2024-11-22 12:37:15,341 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 12:37:15,345 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 [2024-11-22 12:37:15,346 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] [2024-11-22 12:37:15,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-11-22 12:37:15,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 103. [2024-11-22 12:37:15,361 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) [2024-11-22 12:37:15,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 146 transitions. [2024-11-22 12:37:15,363 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 146 transitions. Word has length 144 [2024-11-22 12:37:15,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:37:15,369 INFO L471 AbstractCegarLoop]: Abstraction has 103 states and 146 transitions. [2024-11-22 12:37:15,369 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) [2024-11-22 12:37:15,369 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 146 transitions. [2024-11-22 12:37:15,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-22 12:37:15,371 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:37:15,371 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] [2024-11-22 12:37:15,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 12:37:15,371 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:37:15,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:37:15,372 INFO L85 PathProgramCache]: Analyzing trace with hash -879484596, now seen corresponding path program 1 times [2024-11-22 12:37:15,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:37:15,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229112685] [2024-11-22 12:37:15,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:37:15,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:37:15,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:37:15,655 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-22 12:37:15,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:37:15,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229112685] [2024-11-22 12:37:15,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229112685] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:37:15,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:37:15,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 12:37:15,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127617563] [2024-11-22 12:37:15,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:37:15,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 12:37:15,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:37:15,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 12:37:15,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 12:37:15,659 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) [2024-11-22 12:37:15,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:37:15,689 INFO L93 Difference]: Finished difference Result 206 states and 293 transitions. [2024-11-22 12:37:15,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 12:37:15,690 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 [2024-11-22 12:37:15,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:37:15,692 INFO L225 Difference]: With dead ends: 206 [2024-11-22 12:37:15,692 INFO L226 Difference]: Without dead ends: 106 [2024-11-22 12:37:15,693 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 12:37:15,694 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 [2024-11-22 12:37:15,695 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] [2024-11-22 12:37:15,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-11-22 12:37:15,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 105. [2024-11-22 12:37:15,707 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) [2024-11-22 12:37:15,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 148 transitions. [2024-11-22 12:37:15,710 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 148 transitions. Word has length 144 [2024-11-22 12:37:15,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:37:15,713 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 148 transitions. [2024-11-22 12:37:15,713 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) [2024-11-22 12:37:15,713 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 148 transitions. [2024-11-22 12:37:15,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-22 12:37:15,719 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:37:15,719 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] [2024-11-22 12:37:15,720 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 12:37:15,720 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:37:15,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:37:15,723 INFO L85 PathProgramCache]: Analyzing trace with hash -877637554, now seen corresponding path program 1 times [2024-11-22 12:37:15,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:37:15,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288994068] [2024-11-22 12:37:15,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:37:15,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:37:15,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:37:16,114 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-22 12:37:16,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:37:16,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288994068] [2024-11-22 12:37:16,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288994068] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:37:16,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:37:16,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 12:37:16,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442158374] [2024-11-22 12:37:16,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:37:16,119 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 12:37:16,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:37:16,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 12:37:16,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 12:37:16,123 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) [2024-11-22 12:37:16,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:37:16,233 INFO L93 Difference]: Finished difference Result 266 states and 375 transitions. [2024-11-22 12:37:16,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 12:37:16,234 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 [2024-11-22 12:37:16,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:37:16,236 INFO L225 Difference]: With dead ends: 266 [2024-11-22 12:37:16,239 INFO L226 Difference]: Without dead ends: 164 [2024-11-22 12:37:16,240 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 12:37:16,244 INFO L432 NwaCegarLoop]: 203 mSDtfsCounter, 87 mSDsluCounter, 506 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2024-11-22 12:37:16,245 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] [2024-11-22 12:37:16,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2024-11-22 12:37:16,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 107. [2024-11-22 12:37:16,258 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) [2024-11-22 12:37:16,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 150 transitions. [2024-11-22 12:37:16,261 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 150 transitions. Word has length 144 [2024-11-22 12:37:16,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:37:16,262 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 150 transitions. [2024-11-22 12:37:16,262 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) [2024-11-22 12:37:16,262 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 150 transitions. [2024-11-22 12:37:16,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-22 12:37:16,266 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:37:16,267 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] [2024-11-22 12:37:16,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 12:37:16,267 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:37:16,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:37:16,269 INFO L85 PathProgramCache]: Analyzing trace with hash -694713373, now seen corresponding path program 1 times [2024-11-22 12:37:16,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:37:16,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947179621] [2024-11-22 12:37:16,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:37:16,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:37:16,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:37:16,761 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-22 12:37:16,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:37:16,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947179621] [2024-11-22 12:37:16,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947179621] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:37:16,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:37:16,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 12:37:16,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065825200] [2024-11-22 12:37:16,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:37:16,765 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 12:37:16,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:37:16,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 12:37:16,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 12:37:16,768 INFO L87 Difference]: Start difference. First operand 107 states and 150 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 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) [2024-11-22 12:37:16,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:37:16,898 INFO L93 Difference]: Finished difference Result 272 states and 384 transitions. [2024-11-22 12:37:16,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 12:37:16,899 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 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 [2024-11-22 12:37:16,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:37:16,901 INFO L225 Difference]: With dead ends: 272 [2024-11-22 12:37:16,901 INFO L226 Difference]: Without dead ends: 168 [2024-11-22 12:37:16,901 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-22 12:37:16,904 INFO L432 NwaCegarLoop]: 176 mSDtfsCounter, 135 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 628 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 12:37:16,905 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 628 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 12:37:16,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2024-11-22 12:37:16,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 115. [2024-11-22 12:37:16,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 94 states have (on average 1.3297872340425532) internal successors, (125), 94 states have internal predecessors, (125), 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) [2024-11-22 12:37:16,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 163 transitions. [2024-11-22 12:37:16,920 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 163 transitions. Word has length 145 [2024-11-22 12:37:16,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:37:16,921 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 163 transitions. [2024-11-22 12:37:16,921 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 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) [2024-11-22 12:37:16,921 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 163 transitions. [2024-11-22 12:37:16,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-22 12:37:16,923 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:37:16,924 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] [2024-11-22 12:37:16,924 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 12:37:16,925 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:37:16,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:37:16,925 INFO L85 PathProgramCache]: Analyzing trace with hash 982540647, now seen corresponding path program 1 times [2024-11-22 12:37:16,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:37:16,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042287335] [2024-11-22 12:37:16,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:37:16,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:37:17,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:37:18,406 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-22 12:37:18,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:37:18,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042287335] [2024-11-22 12:37:18,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042287335] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:37:18,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:37:18,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 12:37:18,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437572912] [2024-11-22 12:37:18,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:37:18,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 12:37:18,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:37:18,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 12:37:18,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-22 12:37:18,410 INFO L87 Difference]: Start difference. First operand 115 states and 163 transitions. Second operand has 8 states, 7 states have (on average 7.714285714285714) internal successors, (54), 8 states have internal predecessors, (54), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-22 12:37:18,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:37:18,900 INFO L93 Difference]: Finished difference Result 309 states and 436 transitions. [2024-11-22 12:37:18,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 12:37:18,901 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.714285714285714) internal successors, (54), 8 states have internal predecessors, (54), 2 states have call successors, (19), 1 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 146 [2024-11-22 12:37:18,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:37:18,902 INFO L225 Difference]: With dead ends: 309 [2024-11-22 12:37:18,902 INFO L226 Difference]: Without dead ends: 197 [2024-11-22 12:37:18,903 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-22 12:37:18,904 INFO L432 NwaCegarLoop]: 206 mSDtfsCounter, 169 mSDsluCounter, 822 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 1028 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 12:37:18,904 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 1028 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 12:37:18,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2024-11-22 12:37:18,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 194. [2024-11-22 12:37:18,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 159 states have (on average 1.3144654088050314) internal successors, (209), 160 states have internal predecessors, (209), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 31 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-22 12:37:18,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 273 transitions. [2024-11-22 12:37:18,932 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 273 transitions. Word has length 146 [2024-11-22 12:37:18,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:37:18,933 INFO L471 AbstractCegarLoop]: Abstraction has 194 states and 273 transitions. [2024-11-22 12:37:18,933 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.714285714285714) internal successors, (54), 8 states have internal predecessors, (54), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-22 12:37:18,933 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 273 transitions. [2024-11-22 12:37:18,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-22 12:37:18,935 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:37:18,936 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] [2024-11-22 12:37:18,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 12:37:18,936 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:37:18,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:37:18,937 INFO L85 PathProgramCache]: Analyzing trace with hash -269161938, now seen corresponding path program 1 times [2024-11-22 12:37:18,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:37:18,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260143319] [2024-11-22 12:37:18,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:37:18,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:37:18,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:37:19,353 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-22 12:37:19,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:37:19,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260143319] [2024-11-22 12:37:19,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260143319] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:37:19,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:37:19,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 12:37:19,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018077850] [2024-11-22 12:37:19,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:37:19,355 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 12:37:19,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:37:19,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 12:37:19,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 12:37:19,356 INFO L87 Difference]: Start difference. First operand 194 states and 273 transitions. Second operand has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-22 12:37:19,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:37:19,475 INFO L93 Difference]: Finished difference Result 447 states and 625 transitions. [2024-11-22 12:37:19,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 12:37:19,476 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 2 states have call successors, (19), 1 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 146 [2024-11-22 12:37:19,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:37:19,481 INFO L225 Difference]: With dead ends: 447 [2024-11-22 12:37:19,481 INFO L226 Difference]: Without dead ends: 256 [2024-11-22 12:37:19,482 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-22 12:37:19,483 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 66 mSDsluCounter, 489 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 621 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 12:37:19,484 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 621 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 12:37:19,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2024-11-22 12:37:19,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 253. [2024-11-22 12:37:19,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 212 states have (on average 1.3113207547169812) internal successors, (278), 214 states have internal predecessors, (278), 36 states have call successors, (36), 4 states have call predecessors, (36), 4 states have return successors, (36), 34 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-22 12:37:19,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 350 transitions. [2024-11-22 12:37:19,506 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 350 transitions. Word has length 146 [2024-11-22 12:37:19,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:37:19,507 INFO L471 AbstractCegarLoop]: Abstraction has 253 states and 350 transitions. [2024-11-22 12:37:19,508 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-22 12:37:19,508 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 350 transitions. [2024-11-22 12:37:19,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-22 12:37:19,510 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:37:19,510 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] [2024-11-22 12:37:19,510 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 12:37:19,510 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:37:19,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:37:19,511 INFO L85 PathProgramCache]: Analyzing trace with hash 1431681951, now seen corresponding path program 1 times [2024-11-22 12:37:19,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:37:19,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32640443] [2024-11-22 12:37:19,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:37:19,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:37:19,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:37:20,837 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-22 12:37:20,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:37:20,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32640443] [2024-11-22 12:37:20,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32640443] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:37:20,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:37:20,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-22 12:37:20,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610693717] [2024-11-22 12:37:20,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:37:20,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-22 12:37:20,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:37:20,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-22 12:37:20,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-22 12:37:20,840 INFO L87 Difference]: Start difference. First operand 253 states and 350 transitions. Second operand has 11 states, 9 states have (on average 6.111111111111111) 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), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-22 12:37:21,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:37:21,716 INFO L93 Difference]: Finished difference Result 665 states and 914 transitions. [2024-11-22 12:37:21,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-22 12:37:21,717 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 6.111111111111111) 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), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 147 [2024-11-22 12:37:21,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:37:21,720 INFO L225 Difference]: With dead ends: 665 [2024-11-22 12:37:21,720 INFO L226 Difference]: Without dead ends: 415 [2024-11-22 12:37:21,721 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2024-11-22 12:37:21,722 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 194 mSDsluCounter, 742 mSDsCounter, 0 mSdLazyCounter, 746 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 866 SdHoareTripleChecker+Invalid, 752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 746 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-22 12:37:21,722 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 866 Invalid, 752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 746 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-22 12:37:21,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2024-11-22 12:37:21,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 274. [2024-11-22 12:37:21,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 233 states have (on average 1.3261802575107295) internal successors, (309), 235 states have internal predecessors, (309), 36 states have call successors, (36), 4 states have call predecessors, (36), 4 states have return successors, (36), 34 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-22 12:37:21,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 381 transitions. [2024-11-22 12:37:21,755 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 381 transitions. Word has length 147 [2024-11-22 12:37:21,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:37:21,756 INFO L471 AbstractCegarLoop]: Abstraction has 274 states and 381 transitions. [2024-11-22 12:37:21,756 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 6.111111111111111) 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), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-22 12:37:21,756 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 381 transitions. [2024-11-22 12:37:21,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-22 12:37:21,758 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:37:21,758 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] [2024-11-22 12:37:21,758 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 12:37:21,759 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:37:21,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:37:21,759 INFO L85 PathProgramCache]: Analyzing trace with hash -1583421667, now seen corresponding path program 1 times [2024-11-22 12:37:21,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:37:21,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083312014] [2024-11-22 12:37:21,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:37:21,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:37:21,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:37:22,580 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-22 12:37:22,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:37:22,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083312014] [2024-11-22 12:37:22,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083312014] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:37:22,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:37:22,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-22 12:37:22,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745389651] [2024-11-22 12:37:22,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:37:22,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 12:37:22,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:37:22,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 12:37:22,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-22 12:37:22,584 INFO L87 Difference]: Start difference. First operand 274 states and 381 transitions. Second operand has 9 states, 8 states have (on average 6.875) internal successors, (55), 9 states have internal predecessors, (55), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-22 12:37:22,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:37:22,945 INFO L93 Difference]: Finished difference Result 621 states and 856 transitions. [2024-11-22 12:37:22,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 12:37:22,945 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.875) internal successors, (55), 9 states have internal predecessors, (55), 2 states have call successors, (19), 1 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 147 [2024-11-22 12:37:22,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:37:22,947 INFO L225 Difference]: With dead ends: 621 [2024-11-22 12:37:22,947 INFO L226 Difference]: Without dead ends: 350 [2024-11-22 12:37:22,948 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-11-22 12:37:22,949 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 93 mSDsluCounter, 943 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 1122 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 12:37:22,949 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 1122 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 12:37:22,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2024-11-22 12:37:22,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 347. [2024-11-22 12:37:22,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 288 states have (on average 1.2951388888888888) internal successors, (373), 291 states have internal predecessors, (373), 51 states have call successors, (51), 7 states have call predecessors, (51), 7 states have return successors, (51), 48 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-22 12:37:22,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 475 transitions. [2024-11-22 12:37:22,986 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 475 transitions. Word has length 147 [2024-11-22 12:37:22,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:37:22,986 INFO L471 AbstractCegarLoop]: Abstraction has 347 states and 475 transitions. [2024-11-22 12:37:22,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.875) internal successors, (55), 9 states have internal predecessors, (55), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-22 12:37:22,987 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 475 transitions. [2024-11-22 12:37:22,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-22 12:37:22,988 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:37:22,988 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] [2024-11-22 12:37:22,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 12:37:22,989 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:37:22,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:37:22,992 INFO L85 PathProgramCache]: Analyzing trace with hash 679019452, now seen corresponding path program 1 times [2024-11-22 12:37:22,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:37:22,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789877786] [2024-11-22 12:37:22,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:37:22,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:37:23,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:37:23,363 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-22 12:37:23,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:37:23,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789877786] [2024-11-22 12:37:23,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789877786] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:37:23,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:37:23,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 12:37:23,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642920965] [2024-11-22 12:37:23,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:37:23,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 12:37:23,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:37:23,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 12:37:23,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-22 12:37:23,366 INFO L87 Difference]: Start difference. First operand 347 states and 475 transitions. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 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) [2024-11-22 12:37:23,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:37:23,563 INFO L93 Difference]: Finished difference Result 781 states and 1053 transitions. [2024-11-22 12:37:23,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 12:37:23,564 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 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 [2024-11-22 12:37:23,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:37:23,567 INFO L225 Difference]: With dead ends: 781 [2024-11-22 12:37:23,567 INFO L226 Difference]: Without dead ends: 437 [2024-11-22 12:37:23,568 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-22 12:37:23,568 INFO L432 NwaCegarLoop]: 195 mSDtfsCounter, 182 mSDsluCounter, 646 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 841 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 12:37:23,569 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 841 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 12:37:23,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2024-11-22 12:37:23,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 427. [2024-11-22 12:37:23,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 359 states have (on average 1.2729805013927578) internal successors, (457), 365 states have internal predecessors, (457), 57 states have call successors, (57), 10 states have call predecessors, (57), 10 states have return successors, (57), 51 states have call predecessors, (57), 57 states have call successors, (57) [2024-11-22 12:37:23,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 571 transitions. [2024-11-22 12:37:23,607 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 571 transitions. Word has length 147 [2024-11-22 12:37:23,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:37:23,608 INFO L471 AbstractCegarLoop]: Abstraction has 427 states and 571 transitions. [2024-11-22 12:37:23,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 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) [2024-11-22 12:37:23,608 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 571 transitions. [2024-11-22 12:37:23,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-22 12:37:23,609 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:37:23,610 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] [2024-11-22 12:37:23,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 12:37:23,610 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:37:23,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:37:23,610 INFO L85 PathProgramCache]: Analyzing trace with hash 1572230561, now seen corresponding path program 1 times [2024-11-22 12:37:23,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:37:23,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641727059] [2024-11-22 12:37:23,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:37:23,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:37:23,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:37:23,969 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-22 12:37:23,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:37:23,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641727059] [2024-11-22 12:37:23,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641727059] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:37:23,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:37:23,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 12:37:23,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088048336] [2024-11-22 12:37:23,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:37:23,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 12:37:23,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:37:23,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 12:37:23,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 12:37:23,972 INFO L87 Difference]: Start difference. First operand 427 states and 571 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) [2024-11-22 12:37:24,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:37:24,271 INFO L93 Difference]: Finished difference Result 897 states and 1205 transitions. [2024-11-22 12:37:24,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 12:37:24,272 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 [2024-11-22 12:37:24,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:37:24,275 INFO L225 Difference]: With dead ends: 897 [2024-11-22 12:37:24,275 INFO L226 Difference]: Without dead ends: 482 [2024-11-22 12:37:24,276 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 [2024-11-22 12:37:24,277 INFO L432 NwaCegarLoop]: 207 mSDtfsCounter, 117 mSDsluCounter, 896 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 1103 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 12:37:24,277 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 1103 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 12:37:24,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2024-11-22 12:37:24,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 469. [2024-11-22 12:37:24,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 469 states, 385 states have (on average 1.2545454545454546) internal successors, (483), 391 states have internal predecessors, (483), 72 states have call successors, (72), 11 states have call predecessors, (72), 11 states have return successors, (72), 66 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-22 12:37:24,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 627 transitions. [2024-11-22 12:37:24,319 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 627 transitions. Word has length 147 [2024-11-22 12:37:24,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:37:24,319 INFO L471 AbstractCegarLoop]: Abstraction has 469 states and 627 transitions. [2024-11-22 12:37:24,319 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) [2024-11-22 12:37:24,320 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 627 transitions. [2024-11-22 12:37:24,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-22 12:37:24,321 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:37:24,321 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] [2024-11-22 12:37:24,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 12:37:24,322 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:37:24,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:37:24,322 INFO L85 PathProgramCache]: Analyzing trace with hash -1442873057, now seen corresponding path program 1 times [2024-11-22 12:37:24,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:37:24,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855028857] [2024-11-22 12:37:24,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:37:24,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:37:24,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:37:25,519 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-22 12:37:25,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:37:25,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855028857] [2024-11-22 12:37:25,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855028857] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:37:25,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:37:25,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-22 12:37:25,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701783937] [2024-11-22 12:37:25,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:37:25,520 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-22 12:37:25,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:37:25,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-22 12:37:25,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-22 12:37:25,521 INFO L87 Difference]: Start difference. First operand 469 states and 627 transitions. Second operand has 11 states, 9 states have (on average 6.111111111111111) 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), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-22 12:37:26,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:37:26,719 INFO L93 Difference]: Finished difference Result 1045 states and 1390 transitions. [2024-11-22 12:37:26,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-22 12:37:26,720 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 6.111111111111111) 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), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 147 [2024-11-22 12:37:26,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:37:26,723 INFO L225 Difference]: With dead ends: 1045 [2024-11-22 12:37:26,724 INFO L226 Difference]: Without dead ends: 588 [2024-11-22 12:37:26,725 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-11-22 12:37:26,725 INFO L432 NwaCegarLoop]: 241 mSDtfsCounter, 191 mSDsluCounter, 1389 mSDsCounter, 0 mSdLazyCounter, 1048 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 1630 SdHoareTripleChecker+Invalid, 1052 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1048 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-22 12:37:26,726 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 1630 Invalid, 1052 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1048 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-22 12:37:26,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2024-11-22 12:37:26,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 485. [2024-11-22 12:37:26,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 485 states, 400 states have (on average 1.2525) internal successors, (501), 406 states have internal predecessors, (501), 72 states have call successors, (72), 12 states have call predecessors, (72), 12 states have return successors, (72), 66 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-22 12:37:26,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 645 transitions. [2024-11-22 12:37:26,776 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 645 transitions. Word has length 147 [2024-11-22 12:37:26,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:37:26,777 INFO L471 AbstractCegarLoop]: Abstraction has 485 states and 645 transitions. [2024-11-22 12:37:26,777 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 6.111111111111111) 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), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-22 12:37:26,777 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 645 transitions. [2024-11-22 12:37:26,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-22 12:37:26,779 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:37:26,779 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] [2024-11-22 12:37:26,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 12:37:26,779 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:37:26,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:37:26,780 INFO L85 PathProgramCache]: Analyzing trace with hash -1020171231, now seen corresponding path program 1 times [2024-11-22 12:37:26,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:37:26,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460649025] [2024-11-22 12:37:26,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:37:26,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:37:26,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:37:28,338 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-22 12:37:28,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:37:28,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460649025] [2024-11-22 12:37:28,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460649025] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:37:28,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:37:28,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-22 12:37:28,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760021029] [2024-11-22 12:37:28,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:37:28,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-22 12:37:28,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:37:28,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-22 12:37:28,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-22 12:37:28,342 INFO L87 Difference]: Start difference. First operand 485 states and 645 transitions. Second operand has 12 states, 9 states have (on average 6.111111111111111) internal successors, (55), 12 states have internal predecessors, (55), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-22 12:37:29,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:37:29,657 INFO L93 Difference]: Finished difference Result 1077 states and 1426 transitions. [2024-11-22 12:37:29,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-22 12:37:29,658 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 6.111111111111111) internal successors, (55), 12 states have internal predecessors, (55), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) Word has length 147 [2024-11-22 12:37:29,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:37:29,662 INFO L225 Difference]: With dead ends: 1077 [2024-11-22 12:37:29,662 INFO L226 Difference]: Without dead ends: 604 [2024-11-22 12:37:29,663 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2024-11-22 12:37:29,664 INFO L432 NwaCegarLoop]: 272 mSDtfsCounter, 188 mSDsluCounter, 1697 mSDsCounter, 0 mSdLazyCounter, 1191 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 1969 SdHoareTripleChecker+Invalid, 1200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-22 12:37:29,665 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 1969 Invalid, 1200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1191 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-22 12:37:29,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2024-11-22 12:37:29,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 599. [2024-11-22 12:37:29,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 495 states have (on average 1.2424242424242424) internal successors, (615), 503 states have internal predecessors, (615), 87 states have call successors, (87), 16 states have call predecessors, (87), 16 states have return successors, (87), 79 states have call predecessors, (87), 87 states have call successors, (87) [2024-11-22 12:37:29,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 789 transitions. [2024-11-22 12:37:29,738 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 789 transitions. Word has length 147 [2024-11-22 12:37:29,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:37:29,739 INFO L471 AbstractCegarLoop]: Abstraction has 599 states and 789 transitions. [2024-11-22 12:37:29,739 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 6.111111111111111) internal successors, (55), 12 states have internal predecessors, (55), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-22 12:37:29,739 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 789 transitions. [2024-11-22 12:37:29,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-22 12:37:29,742 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:37:29,742 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] [2024-11-22 12:37:29,742 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 12:37:29,743 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:37:29,743 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:37:29,743 INFO L85 PathProgramCache]: Analyzing trace with hash 781233282, now seen corresponding path program 1 times [2024-11-22 12:37:29,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:37:29,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578906430] [2024-11-22 12:37:29,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:37:29,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:37:29,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:37:30,586 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-22 12:37:30,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:37:30,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578906430] [2024-11-22 12:37:30,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578906430] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:37:30,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:37:30,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-22 12:37:30,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233864325] [2024-11-22 12:37:30,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:37:30,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-22 12:37:30,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:37:30,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-22 12:37:30,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-22 12:37:30,589 INFO L87 Difference]: Start difference. First operand 599 states and 789 transitions. Second operand has 11 states, 10 states have (on average 5.6) internal successors, (56), 11 states have internal predecessors, (56), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-22 12:37:31,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:37:31,153 INFO L93 Difference]: Finished difference Result 1308 states and 1733 transitions. [2024-11-22 12:37:31,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-22 12:37:31,154 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.6) internal successors, (56), 11 states have internal predecessors, (56), 2 states have call successors, (19), 1 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 148 [2024-11-22 12:37:31,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:37:31,158 INFO L225 Difference]: With dead ends: 1308 [2024-11-22 12:37:31,158 INFO L226 Difference]: Without dead ends: 721 [2024-11-22 12:37:31,159 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-11-22 12:37:31,160 INFO L432 NwaCegarLoop]: 170 mSDtfsCounter, 104 mSDsluCounter, 1025 mSDsCounter, 0 mSdLazyCounter, 594 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 1195 SdHoareTripleChecker+Invalid, 596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 12:37:31,160 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 1195 Invalid, 596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 594 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 12:37:31,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 721 states. [2024-11-22 12:37:31,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 721 to 696. [2024-11-22 12:37:31,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 696 states, 575 states have (on average 1.2521739130434784) internal successors, (720), 584 states have internal predecessors, (720), 102 states have call successors, (102), 18 states have call predecessors, (102), 18 states have return successors, (102), 93 states have call predecessors, (102), 102 states have call successors, (102) [2024-11-22 12:37:31,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 696 states to 696 states and 924 transitions. [2024-11-22 12:37:31,240 INFO L78 Accepts]: Start accepts. Automaton has 696 states and 924 transitions. Word has length 148 [2024-11-22 12:37:31,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:37:31,241 INFO L471 AbstractCegarLoop]: Abstraction has 696 states and 924 transitions. [2024-11-22 12:37:31,241 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.6) internal successors, (56), 11 states have internal predecessors, (56), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-22 12:37:31,241 INFO L276 IsEmpty]: Start isEmpty. Operand 696 states and 924 transitions. [2024-11-22 12:37:31,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-22 12:37:31,243 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:37:31,244 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] [2024-11-22 12:37:31,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-22 12:37:31,244 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:37:31,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:37:31,245 INFO L85 PathProgramCache]: Analyzing trace with hash -1132673159, now seen corresponding path program 1 times [2024-11-22 12:37:31,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:37:31,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049428311] [2024-11-22 12:37:31,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:37:31,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:37:31,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:37:31,487 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-22 12:37:31,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:37:31,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049428311] [2024-11-22 12:37:31,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049428311] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:37:31,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:37:31,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 12:37:31,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796588508] [2024-11-22 12:37:31,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:37:31,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 12:37:31,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:37:31,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 12:37:31,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 12:37:31,490 INFO L87 Difference]: Start difference. First operand 696 states and 924 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) [2024-11-22 12:37:31,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:37:31,661 INFO L93 Difference]: Finished difference Result 1374 states and 1827 transitions. [2024-11-22 12:37:31,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 12:37:31,662 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 [2024-11-22 12:37:31,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:37:31,666 INFO L225 Difference]: With dead ends: 1374 [2024-11-22 12:37:31,667 INFO L226 Difference]: Without dead ends: 698 [2024-11-22 12:37:31,668 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 12:37:31,669 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 63 mSDsluCounter, 424 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 585 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 [2024-11-22 12:37:31,669 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 585 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 12:37:31,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 698 states. [2024-11-22 12:37:31,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 698 to 696. [2024-11-22 12:37:31,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 696 states, 575 states have (on average 1.2504347826086957) internal successors, (719), 584 states have internal predecessors, (719), 102 states have call successors, (102), 18 states have call predecessors, (102), 18 states have return successors, (102), 93 states have call predecessors, (102), 102 states have call successors, (102) [2024-11-22 12:37:31,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 696 states to 696 states and 923 transitions. [2024-11-22 12:37:31,769 INFO L78 Accepts]: Start accepts. Automaton has 696 states and 923 transitions. Word has length 148 [2024-11-22 12:37:31,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:37:31,770 INFO L471 AbstractCegarLoop]: Abstraction has 696 states and 923 transitions. [2024-11-22 12:37:31,770 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) [2024-11-22 12:37:31,770 INFO L276 IsEmpty]: Start isEmpty. Operand 696 states and 923 transitions. [2024-11-22 12:37:31,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-22 12:37:31,772 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:37:31,772 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] [2024-11-22 12:37:31,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-22 12:37:31,773 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:37:31,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:37:31,773 INFO L85 PathProgramCache]: Analyzing trace with hash -1634908125, now seen corresponding path program 1 times [2024-11-22 12:37:31,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:37:31,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494450700] [2024-11-22 12:37:31,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:37:31,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:37:31,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:37:31,978 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-22 12:37:31,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:37:31,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494450700] [2024-11-22 12:37:31,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494450700] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:37:31,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:37:31,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 12:37:31,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346596799] [2024-11-22 12:37:31,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:37:31,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 12:37:31,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:37:31,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 12:37:31,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 12:37:31,980 INFO L87 Difference]: Start difference. First operand 696 states and 923 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) [2024-11-22 12:37:32,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:37:32,102 INFO L93 Difference]: Finished difference Result 1374 states and 1825 transitions. [2024-11-22 12:37:32,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 12:37:32,103 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 [2024-11-22 12:37:32,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:37:32,107 INFO L225 Difference]: With dead ends: 1374 [2024-11-22 12:37:32,108 INFO L226 Difference]: Without dead ends: 698 [2024-11-22 12:37:32,109 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 12:37:32,110 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 67 mSDsluCounter, 419 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 580 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 [2024-11-22 12:37:32,110 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 580 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 12:37:32,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 698 states. [2024-11-22 12:37:32,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 698 to 696. [2024-11-22 12:37:32,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 696 states, 575 states have (on average 1.248695652173913) internal successors, (718), 584 states have internal predecessors, (718), 102 states have call successors, (102), 18 states have call predecessors, (102), 18 states have return successors, (102), 93 states have call predecessors, (102), 102 states have call successors, (102) [2024-11-22 12:37:32,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 696 states to 696 states and 922 transitions. [2024-11-22 12:37:32,175 INFO L78 Accepts]: Start accepts. Automaton has 696 states and 922 transitions. Word has length 148 [2024-11-22 12:37:32,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:37:32,176 INFO L471 AbstractCegarLoop]: Abstraction has 696 states and 922 transitions. [2024-11-22 12:37:32,176 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) [2024-11-22 12:37:32,176 INFO L276 IsEmpty]: Start isEmpty. Operand 696 states and 922 transitions. [2024-11-22 12:37:32,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-22 12:37:32,178 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:37:32,178 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] [2024-11-22 12:37:32,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-22 12:37:32,179 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:37:32,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:37:32,179 INFO L85 PathProgramCache]: Analyzing trace with hash 1071711269, now seen corresponding path program 1 times [2024-11-22 12:37:32,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:37:32,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713752788] [2024-11-22 12:37:32,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:37:32,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:37:32,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:37:32,380 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-22 12:37:32,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:37:32,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713752788] [2024-11-22 12:37:32,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713752788] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:37:32,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:37:32,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 12:37:32,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15707200] [2024-11-22 12:37:32,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:37:32,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 12:37:32,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:37:32,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 12:37:32,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 12:37:32,382 INFO L87 Difference]: Start difference. First operand 696 states and 922 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) [2024-11-22 12:37:32,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:37:32,520 INFO L93 Difference]: Finished difference Result 1372 states and 1818 transitions. [2024-11-22 12:37:32,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 12:37:32,521 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 [2024-11-22 12:37:32,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:37:32,525 INFO L225 Difference]: With dead ends: 1372 [2024-11-22 12:37:32,525 INFO L226 Difference]: Without dead ends: 696 [2024-11-22 12:37:32,526 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 12:37:32,527 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 46 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 639 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 12:37:32,527 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 639 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 12:37:32,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2024-11-22 12:37:32,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 677. [2024-11-22 12:37:32,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 677 states, 561 states have (on average 1.249554367201426) internal successors, (701), 569 states have internal predecessors, (701), 98 states have call successors, (98), 17 states have call predecessors, (98), 17 states have return successors, (98), 90 states have call predecessors, (98), 98 states have call successors, (98) [2024-11-22 12:37:32,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 677 states to 677 states and 897 transitions. [2024-11-22 12:37:32,592 INFO L78 Accepts]: Start accepts. Automaton has 677 states and 897 transitions. Word has length 148 [2024-11-22 12:37:32,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:37:32,592 INFO L471 AbstractCegarLoop]: Abstraction has 677 states and 897 transitions. [2024-11-22 12:37:32,592 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) [2024-11-22 12:37:32,592 INFO L276 IsEmpty]: Start isEmpty. Operand 677 states and 897 transitions. [2024-11-22 12:37:32,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-22 12:37:32,594 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:37:32,594 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] [2024-11-22 12:37:32,594 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-22 12:37:32,595 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:37:32,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:37:32,595 INFO L85 PathProgramCache]: Analyzing trace with hash 239277608, now seen corresponding path program 1 times [2024-11-22 12:37:32,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:37:32,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857808430] [2024-11-22 12:37:32,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:37:32,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:37:32,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:37:34,362 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-22 12:37:34,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:37:34,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857808430] [2024-11-22 12:37:34,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857808430] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:37:34,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:37:34,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-22 12:37:34,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199410961] [2024-11-22 12:37:34,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:37:34,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-22 12:37:34,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:37:34,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-22 12:37:34,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-22 12:37:34,364 INFO L87 Difference]: Start difference. First operand 677 states and 897 transitions. Second operand has 11 states, 8 states have (on average 7.0) internal successors, (56), 11 states have internal predecessors, (56), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-22 12:37:35,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:37:35,117 INFO L93 Difference]: Finished difference Result 1345 states and 1782 transitions. [2024-11-22 12:37:35,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-22 12:37:35,117 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 7.0) internal successors, (56), 11 states have internal predecessors, (56), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) Word has length 148 [2024-11-22 12:37:35,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:37:35,121 INFO L225 Difference]: With dead ends: 1345 [2024-11-22 12:37:35,121 INFO L226 Difference]: Without dead ends: 671 [2024-11-22 12:37:35,122 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 9 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-11-22 12:37:35,123 INFO L432 NwaCegarLoop]: 205 mSDtfsCounter, 105 mSDsluCounter, 1171 mSDsCounter, 0 mSdLazyCounter, 806 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 1376 SdHoareTripleChecker+Invalid, 810 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 806 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 12:37:35,123 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 1376 Invalid, 810 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 806 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 12:37:35,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 671 states. [2024-11-22 12:37:35,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 671 to 659. [2024-11-22 12:37:35,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 659 states, 543 states have (on average 1.2486187845303867) internal successors, (678), 551 states have internal predecessors, (678), 98 states have call successors, (98), 17 states have call predecessors, (98), 17 states have return successors, (98), 90 states have call predecessors, (98), 98 states have call successors, (98) [2024-11-22 12:37:35,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 874 transitions. [2024-11-22 12:37:35,184 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 874 transitions. Word has length 148 [2024-11-22 12:37:35,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:37:35,184 INFO L471 AbstractCegarLoop]: Abstraction has 659 states and 874 transitions. [2024-11-22 12:37:35,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 7.0) internal successors, (56), 11 states have internal predecessors, (56), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-22 12:37:35,185 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 874 transitions. [2024-11-22 12:37:35,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-22 12:37:35,188 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:37:35,188 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] [2024-11-22 12:37:35,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-22 12:37:35,188 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:37:35,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:37:35,188 INFO L85 PathProgramCache]: Analyzing trace with hash -365804597, now seen corresponding path program 1 times [2024-11-22 12:37:35,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:37:35,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799751914] [2024-11-22 12:37:35,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:37:35,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:37:35,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:37:35,480 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-22 12:37:35,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:37:35,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799751914] [2024-11-22 12:37:35,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799751914] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:37:35,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:37:35,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 12:37:35,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802934729] [2024-11-22 12:37:35,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:37:35,481 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 12:37:35,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:37:35,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 12:37:35,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 12:37:35,482 INFO L87 Difference]: Start difference. First operand 659 states and 874 transitions. Second operand has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-22 12:37:35,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:37:35,688 INFO L93 Difference]: Finished difference Result 1311 states and 1730 transitions. [2024-11-22 12:37:35,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 12:37:35,689 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (19), 1 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 149 [2024-11-22 12:37:35,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:37:35,693 INFO L225 Difference]: With dead ends: 1311 [2024-11-22 12:37:35,693 INFO L226 Difference]: Without dead ends: 655 [2024-11-22 12:37:35,695 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 [2024-11-22 12:37:35,696 INFO L432 NwaCegarLoop]: 193 mSDtfsCounter, 68 mSDsluCounter, 633 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 826 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 12:37:35,696 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 826 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 12:37:35,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 655 states. [2024-11-22 12:37:35,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 655 to 619. [2024-11-22 12:37:35,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 619 states, 511 states have (on average 1.2289628180039138) internal successors, (628), 519 states have internal predecessors, (628), 89 states have call successors, (89), 18 states have call predecessors, (89), 18 states have return successors, (89), 81 states have call predecessors, (89), 89 states have call successors, (89) [2024-11-22 12:37:35,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 619 states to 619 states and 806 transitions. [2024-11-22 12:37:35,785 INFO L78 Accepts]: Start accepts. Automaton has 619 states and 806 transitions. Word has length 149 [2024-11-22 12:37:35,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:37:35,785 INFO L471 AbstractCegarLoop]: Abstraction has 619 states and 806 transitions. [2024-11-22 12:37:35,786 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-22 12:37:35,786 INFO L276 IsEmpty]: Start isEmpty. Operand 619 states and 806 transitions. [2024-11-22 12:37:35,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-22 12:37:35,788 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:37:35,788 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] [2024-11-22 12:37:35,788 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-22 12:37:35,788 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:37:35,789 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:37:35,789 INFO L85 PathProgramCache]: Analyzing trace with hash -1711229009, now seen corresponding path program 1 times [2024-11-22 12:37:35,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:37:35,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582658673] [2024-11-22 12:37:35,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:37:35,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:37:35,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:37:36,412 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-22 12:37:36,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:37:36,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582658673] [2024-11-22 12:37:36,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582658673] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:37:36,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:37:36,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 12:37:36,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814223333] [2024-11-22 12:37:36,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:37:36,414 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 12:37:36,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:37:36,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 12:37:36,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-22 12:37:36,415 INFO L87 Difference]: Start difference. First operand 619 states and 806 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) [2024-11-22 12:37:36,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:37:36,899 INFO L93 Difference]: Finished difference Result 1523 states and 1987 transitions. [2024-11-22 12:37:36,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 12:37:36,900 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 [2024-11-22 12:37:36,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:37:36,904 INFO L225 Difference]: With dead ends: 1523 [2024-11-22 12:37:36,904 INFO L226 Difference]: Without dead ends: 907 [2024-11-22 12:37:36,906 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-22 12:37:36,906 INFO L432 NwaCegarLoop]: 174 mSDtfsCounter, 99 mSDsluCounter, 708 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 882 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 12:37:36,907 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 882 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 12:37:36,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 907 states. [2024-11-22 12:37:37,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 907 to 903. [2024-11-22 12:37:37,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 903 states, 713 states have (on average 1.20617110799439) internal successors, (860), 723 states have internal predecessors, (860), 158 states have call successors, (158), 31 states have call predecessors, (158), 31 states have return successors, (158), 148 states have call predecessors, (158), 158 states have call successors, (158) [2024-11-22 12:37:37,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 903 states to 903 states and 1176 transitions. [2024-11-22 12:37:37,020 INFO L78 Accepts]: Start accepts. Automaton has 903 states and 1176 transitions. Word has length 149 [2024-11-22 12:37:37,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:37:37,020 INFO L471 AbstractCegarLoop]: Abstraction has 903 states and 1176 transitions. [2024-11-22 12:37:37,021 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) [2024-11-22 12:37:37,021 INFO L276 IsEmpty]: Start isEmpty. Operand 903 states and 1176 transitions. [2024-11-22 12:37:37,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-22 12:37:37,023 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:37:37,024 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] [2024-11-22 12:37:37,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-22 12:37:37,025 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:37:37,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:37:37,025 INFO L85 PathProgramCache]: Analyzing trace with hash -823684889, now seen corresponding path program 1 times [2024-11-22 12:37:37,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:37:37,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090758730] [2024-11-22 12:37:37,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:37:37,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:37:37,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:37:38,711 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-22 12:37:38,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:37:38,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090758730] [2024-11-22 12:37:38,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090758730] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:37:38,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:37:38,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-22 12:37:38,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96309987] [2024-11-22 12:37:38,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:37:38,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-22 12:37:38,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:37:38,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-22 12:37:38,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-11-22 12:37:38,714 INFO L87 Difference]: Start difference. First operand 903 states and 1176 transitions. Second operand has 15 states, 12 states have (on average 4.833333333333333) 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), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-22 12:37:39,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:37:39,706 INFO L93 Difference]: Finished difference Result 1988 states and 2591 transitions. [2024-11-22 12:37:39,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-22 12:37:39,706 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 12 states have (on average 4.833333333333333) 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), 1 states have call predecessors, (19), 4 states have call successors, (19) Word has length 150 [2024-11-22 12:37:39,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:37:39,712 INFO L225 Difference]: With dead ends: 1988 [2024-11-22 12:37:39,712 INFO L226 Difference]: Without dead ends: 1088 [2024-11-22 12:37:39,715 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=322, Unknown=0, NotChecked=0, Total=380 [2024-11-22 12:37:39,716 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 98 mSDsluCounter, 1061 mSDsCounter, 0 mSdLazyCounter, 1104 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 1203 SdHoareTripleChecker+Invalid, 1108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-22 12:37:39,716 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 1203 Invalid, 1108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1104 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-22 12:37:39,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1088 states. [2024-11-22 12:37:39,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1088 to 928. [2024-11-22 12:37:39,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 928 states, 738 states have (on average 1.2127371273712737) internal successors, (895), 748 states have internal predecessors, (895), 158 states have call successors, (158), 31 states have call predecessors, (158), 31 states have return successors, (158), 148 states have call predecessors, (158), 158 states have call successors, (158) [2024-11-22 12:37:39,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 928 states to 928 states and 1211 transitions. [2024-11-22 12:37:39,855 INFO L78 Accepts]: Start accepts. Automaton has 928 states and 1211 transitions. Word has length 150 [2024-11-22 12:37:39,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:37:39,856 INFO L471 AbstractCegarLoop]: Abstraction has 928 states and 1211 transitions. [2024-11-22 12:37:39,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 12 states have (on average 4.833333333333333) 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), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-22 12:37:39,856 INFO L276 IsEmpty]: Start isEmpty. Operand 928 states and 1211 transitions. [2024-11-22 12:37:39,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-22 12:37:39,859 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:37:39,859 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] [2024-11-22 12:37:39,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-22 12:37:39,859 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:37:39,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:37:39,860 INFO L85 PathProgramCache]: Analyzing trace with hash 1477137701, now seen corresponding path program 1 times [2024-11-22 12:37:39,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:37:39,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001384111] [2024-11-22 12:37:39,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:37:39,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:37:39,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:37:40,311 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-22 12:37:40,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:37:40,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001384111] [2024-11-22 12:37:40,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001384111] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:37:40,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:37:40,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 12:37:40,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770081917] [2024-11-22 12:37:40,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:37:40,312 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 12:37:40,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:37:40,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 12:37:40,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 12:37:40,313 INFO L87 Difference]: Start difference. First operand 928 states and 1211 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) [2024-11-22 12:37:40,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:37:40,767 INFO L93 Difference]: Finished difference Result 2154 states and 2813 transitions. [2024-11-22 12:37:40,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 12:37:40,768 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 [2024-11-22 12:37:40,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:37:40,774 INFO L225 Difference]: With dead ends: 2154 [2024-11-22 12:37:40,775 INFO L226 Difference]: Without dead ends: 1229 [2024-11-22 12:37:40,777 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 [2024-11-22 12:37:40,778 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 85 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 12:37:40,779 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 466 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 336 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 12:37:40,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1229 states. [2024-11-22 12:37:40,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1229 to 1225. [2024-11-22 12:37:40,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1225 states, 965 states have (on average 1.2041450777202072) internal successors, (1162), 980 states have internal predecessors, (1162), 218 states have call successors, (218), 41 states have call predecessors, (218), 41 states have return successors, (218), 203 states have call predecessors, (218), 218 states have call successors, (218) [2024-11-22 12:37:40,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1225 states to 1225 states and 1598 transitions. [2024-11-22 12:37:40,916 INFO L78 Accepts]: Start accepts. Automaton has 1225 states and 1598 transitions. Word has length 150 [2024-11-22 12:37:40,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:37:40,916 INFO L471 AbstractCegarLoop]: Abstraction has 1225 states and 1598 transitions. [2024-11-22 12:37:40,917 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) [2024-11-22 12:37:40,917 INFO L276 IsEmpty]: Start isEmpty. Operand 1225 states and 1598 transitions. [2024-11-22 12:37:40,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-22 12:37:40,919 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:37:40,919 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] [2024-11-22 12:37:40,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-22 12:37:40,919 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:37:40,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:37:40,920 INFO L85 PathProgramCache]: Analyzing trace with hash 197274023, now seen corresponding path program 1 times [2024-11-22 12:37:40,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:37:40,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765219016] [2024-11-22 12:37:40,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:37:40,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:37:40,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:37:41,733 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-22 12:37:41,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:37:41,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765219016] [2024-11-22 12:37:41,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765219016] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:37:41,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:37:41,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-22 12:37:41,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291621712] [2024-11-22 12:37:41,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:37:41,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-22 12:37:41,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:37:41,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-22 12:37:41,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-11-22 12:37:41,736 INFO L87 Difference]: Start difference. First operand 1225 states and 1598 transitions. Second operand has 12 states, 10 states have (on average 5.8) internal successors, (58), 12 states have internal predecessors, (58), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-22 12:37:42,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:37:42,463 INFO L93 Difference]: Finished difference Result 2692 states and 3515 transitions. [2024-11-22 12:37:42,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-22 12:37:42,464 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 5.8) internal successors, (58), 12 states have internal predecessors, (58), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 150 [2024-11-22 12:37:42,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:37:42,473 INFO L225 Difference]: With dead ends: 2692 [2024-11-22 12:37:42,473 INFO L226 Difference]: Without dead ends: 1487 [2024-11-22 12:37:42,476 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-11-22 12:37:42,477 INFO L432 NwaCegarLoop]: 202 mSDtfsCounter, 90 mSDsluCounter, 1187 mSDsCounter, 0 mSdLazyCounter, 705 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 1389 SdHoareTripleChecker+Invalid, 706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 705 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 12:37:42,477 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 1389 Invalid, 706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 705 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 12:37:42,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1487 states. [2024-11-22 12:37:42,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1487 to 1229. [2024-11-22 12:37:42,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1229 states, 969 states have (on average 1.2033023735810113) internal successors, (1166), 984 states have internal predecessors, (1166), 218 states have call successors, (218), 41 states have call predecessors, (218), 41 states have return successors, (218), 203 states have call predecessors, (218), 218 states have call successors, (218) [2024-11-22 12:37:42,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1229 states to 1229 states and 1602 transitions. [2024-11-22 12:37:42,645 INFO L78 Accepts]: Start accepts. Automaton has 1229 states and 1602 transitions. Word has length 150 [2024-11-22 12:37:42,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:37:42,645 INFO L471 AbstractCegarLoop]: Abstraction has 1229 states and 1602 transitions. [2024-11-22 12:37:42,646 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 5.8) internal successors, (58), 12 states have internal predecessors, (58), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-22 12:37:42,646 INFO L276 IsEmpty]: Start isEmpty. Operand 1229 states and 1602 transitions. [2024-11-22 12:37:42,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-22 12:37:42,648 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:37:42,648 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] [2024-11-22 12:37:42,648 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-22 12:37:42,649 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:37:42,649 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:37:42,649 INFO L85 PathProgramCache]: Analyzing trace with hash -2046485093, now seen corresponding path program 1 times [2024-11-22 12:37:42,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:37:42,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700616590] [2024-11-22 12:37:42,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:37:42,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:37:42,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:37:42,970 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-22 12:37:42,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:37:42,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700616590] [2024-11-22 12:37:42,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700616590] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:37:42,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:37:42,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 12:37:42,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489680710] [2024-11-22 12:37:42,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:37:42,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 12:37:42,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:37:42,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 12:37:42,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 12:37:42,973 INFO L87 Difference]: Start difference. First operand 1229 states and 1602 transitions. Second operand has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-22 12:37:43,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:37:43,533 INFO L93 Difference]: Finished difference Result 2995 states and 3918 transitions. [2024-11-22 12:37:43,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 12:37:43,534 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (19), 1 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 150 [2024-11-22 12:37:43,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:37:43,544 INFO L225 Difference]: With dead ends: 2995 [2024-11-22 12:37:43,545 INFO L226 Difference]: Without dead ends: 1786 [2024-11-22 12:37:43,548 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 12:37:43,549 INFO L432 NwaCegarLoop]: 197 mSDtfsCounter, 104 mSDsluCounter, 396 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 12:37:43,549 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 593 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 12:37:43,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1786 states. [2024-11-22 12:37:43,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1786 to 1252. [2024-11-22 12:37:43,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1252 states, 992 states have (on average 1.2116935483870968) internal successors, (1202), 1007 states have internal predecessors, (1202), 218 states have call successors, (218), 41 states have call predecessors, (218), 41 states have return successors, (218), 203 states have call predecessors, (218), 218 states have call successors, (218) [2024-11-22 12:37:43,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1252 states to 1252 states and 1638 transitions. [2024-11-22 12:37:43,717 INFO L78 Accepts]: Start accepts. Automaton has 1252 states and 1638 transitions. Word has length 150 [2024-11-22 12:37:43,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:37:43,717 INFO L471 AbstractCegarLoop]: Abstraction has 1252 states and 1638 transitions. [2024-11-22 12:37:43,718 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-22 12:37:43,718 INFO L276 IsEmpty]: Start isEmpty. Operand 1252 states and 1638 transitions. [2024-11-22 12:37:43,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-22 12:37:43,720 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:37:43,720 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] [2024-11-22 12:37:43,720 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-22 12:37:43,720 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:37:43,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:37:43,721 INFO L85 PathProgramCache]: Analyzing trace with hash -2108524707, now seen corresponding path program 1 times [2024-11-22 12:37:43,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:37:43,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150864961] [2024-11-22 12:37:43,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:37:43,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:37:43,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:37:47,806 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-22 12:37:47,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:37:47,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150864961] [2024-11-22 12:37:47,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150864961] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:37:47,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:37:47,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-22 12:37:47,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706636004] [2024-11-22 12:37:47,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:37:47,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-22 12:37:47,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:37:47,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-22 12:37:47,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2024-11-22 12:37:47,811 INFO L87 Difference]: Start difference. First operand 1252 states and 1638 transitions. Second operand has 18 states, 15 states have (on average 3.8666666666666667) 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), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-22 12:37:55,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:37:55,264 INFO L93 Difference]: Finished difference Result 2772 states and 3632 transitions. [2024-11-22 12:37:55,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-22 12:37:55,266 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 15 states have (on average 3.8666666666666667) 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), 1 states have call predecessors, (19), 4 states have call successors, (19) Word has length 150 [2024-11-22 12:37:55,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:37:55,281 INFO L225 Difference]: With dead ends: 2772 [2024-11-22 12:37:55,282 INFO L226 Difference]: Without dead ends: 1540 [2024-11-22 12:37:55,289 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=62, Invalid=400, Unknown=0, NotChecked=0, Total=462 [2024-11-22 12:37:55,290 INFO L432 NwaCegarLoop]: 195 mSDtfsCounter, 190 mSDsluCounter, 1671 mSDsCounter, 0 mSdLazyCounter, 1549 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 1866 SdHoareTripleChecker+Invalid, 1551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1549 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2024-11-22 12:37:55,290 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 1866 Invalid, 1551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1549 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2024-11-22 12:37:55,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1540 states. [2024-11-22 12:37:55,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1540 to 1268. [2024-11-22 12:37:55,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1268 states, 1008 states have (on average 1.2142857142857142) internal successors, (1224), 1023 states have internal predecessors, (1224), 218 states have call successors, (218), 41 states have call predecessors, (218), 41 states have return successors, (218), 203 states have call predecessors, (218), 218 states have call successors, (218) [2024-11-22 12:37:55,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1268 states to 1268 states and 1660 transitions. [2024-11-22 12:37:55,469 INFO L78 Accepts]: Start accepts. Automaton has 1268 states and 1660 transitions. Word has length 150 [2024-11-22 12:37:55,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:37:55,469 INFO L471 AbstractCegarLoop]: Abstraction has 1268 states and 1660 transitions. [2024-11-22 12:37:55,470 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 15 states have (on average 3.8666666666666667) 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), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-22 12:37:55,470 INFO L276 IsEmpty]: Start isEmpty. Operand 1268 states and 1660 transitions. [2024-11-22 12:37:55,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-22 12:37:55,475 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:37:55,476 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] [2024-11-22 12:37:55,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-22 12:37:55,476 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:37:55,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:37:55,477 INFO L85 PathProgramCache]: Analyzing trace with hash 1165374235, now seen corresponding path program 1 times [2024-11-22 12:37:55,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:37:55,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150779103] [2024-11-22 12:37:55,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:37:55,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:37:55,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:37:56,113 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-22 12:37:56,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:37:56,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150779103] [2024-11-22 12:37:56,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150779103] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:37:56,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:37:56,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 12:37:56,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599443471] [2024-11-22 12:37:56,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:37:56,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 12:37:56,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:37:56,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 12:37:56,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-22 12:37:56,116 INFO L87 Difference]: Start difference. First operand 1268 states and 1660 transitions. Second operand has 8 states, 6 states have (on average 9.666666666666666) internal successors, (58), 8 states have internal predecessors, (58), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-22 12:37:56,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:37:56,730 INFO L93 Difference]: Finished difference Result 2665 states and 3486 transitions. [2024-11-22 12:37:56,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 12:37:56,730 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 9.666666666666666) internal successors, (58), 8 states have internal predecessors, (58), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 150 [2024-11-22 12:37:56,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:37:56,739 INFO L225 Difference]: With dead ends: 2665 [2024-11-22 12:37:56,739 INFO L226 Difference]: Without dead ends: 1417 [2024-11-22 12:37:56,742 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-22 12:37:56,743 INFO L432 NwaCegarLoop]: 196 mSDtfsCounter, 95 mSDsluCounter, 704 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 900 SdHoareTripleChecker+Invalid, 499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 12:37:56,744 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 900 Invalid, 499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 12:37:56,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1417 states. [2024-11-22 12:37:56,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1417 to 1312. [2024-11-22 12:37:56,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1312 states, 1047 states have (on average 1.2082139446036295) internal successors, (1265), 1063 states have internal predecessors, (1265), 222 states have call successors, (222), 42 states have call predecessors, (222), 42 states have return successors, (222), 206 states have call predecessors, (222), 222 states have call successors, (222) [2024-11-22 12:37:56,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1312 states to 1312 states and 1709 transitions. [2024-11-22 12:37:56,971 INFO L78 Accepts]: Start accepts. Automaton has 1312 states and 1709 transitions. Word has length 150 [2024-11-22 12:37:56,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:37:56,972 INFO L471 AbstractCegarLoop]: Abstraction has 1312 states and 1709 transitions. [2024-11-22 12:37:56,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 9.666666666666666) internal successors, (58), 8 states have internal predecessors, (58), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-22 12:37:56,972 INFO L276 IsEmpty]: Start isEmpty. Operand 1312 states and 1709 transitions. [2024-11-22 12:37:56,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-22 12:37:56,974 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:37:56,974 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] [2024-11-22 12:37:56,974 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-22 12:37:56,974 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:37:56,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:37:56,975 INFO L85 PathProgramCache]: Analyzing trace with hash 1368794139, now seen corresponding path program 1 times [2024-11-22 12:37:56,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:37:56,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469922960] [2024-11-22 12:37:56,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:37:56,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:37:57,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:37:58,948 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-22 12:37:58,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:37:58,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469922960] [2024-11-22 12:37:58,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469922960] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:37:58,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:37:58,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-22 12:37:58,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937335835] [2024-11-22 12:37:58,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:37:58,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-22 12:37:58,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:37:58,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-22 12:37:58,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2024-11-22 12:37:58,950 INFO L87 Difference]: Start difference. First operand 1312 states and 1709 transitions. Second operand has 16 states, 13 states have (on average 4.461538461538462) 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), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-22 12:38:01,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:38:01,011 INFO L93 Difference]: Finished difference Result 2870 states and 3742 transitions. [2024-11-22 12:38:01,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-22 12:38:01,012 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 13 states have (on average 4.461538461538462) 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), 1 states have call predecessors, (19), 4 states have call successors, (19) Word has length 150 [2024-11-22 12:38:01,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:38:01,023 INFO L225 Difference]: With dead ends: 2870 [2024-11-22 12:38:01,023 INFO L226 Difference]: Without dead ends: 1578 [2024-11-22 12:38:01,026 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 10 SyntacticMatches, 3 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2024-11-22 12:38:01,027 INFO L432 NwaCegarLoop]: 272 mSDtfsCounter, 173 mSDsluCounter, 2287 mSDsCounter, 0 mSdLazyCounter, 1809 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 2559 SdHoareTripleChecker+Invalid, 1812 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1809 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-22 12:38:01,027 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 2559 Invalid, 1812 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1809 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-22 12:38:01,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1578 states. [2024-11-22 12:38:01,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1578 to 1310. [2024-11-22 12:38:01,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1310 states, 1045 states have (on average 1.2066985645933015) internal successors, (1261), 1061 states have internal predecessors, (1261), 222 states have call successors, (222), 42 states have call predecessors, (222), 42 states have return successors, (222), 206 states have call predecessors, (222), 222 states have call successors, (222) [2024-11-22 12:38:01,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1310 states to 1310 states and 1705 transitions. [2024-11-22 12:38:01,238 INFO L78 Accepts]: Start accepts. Automaton has 1310 states and 1705 transitions. Word has length 150 [2024-11-22 12:38:01,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:38:01,238 INFO L471 AbstractCegarLoop]: Abstraction has 1310 states and 1705 transitions. [2024-11-22 12:38:01,239 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 13 states have (on average 4.461538461538462) 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), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-22 12:38:01,239 INFO L276 IsEmpty]: Start isEmpty. Operand 1310 states and 1705 transitions. [2024-11-22 12:38:01,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-22 12:38:01,240 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:38:01,241 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] [2024-11-22 12:38:01,241 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-22 12:38:01,241 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:38:01,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:38:01,241 INFO L85 PathProgramCache]: Analyzing trace with hash 562518505, now seen corresponding path program 1 times [2024-11-22 12:38:01,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:38:01,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837452763] [2024-11-22 12:38:01,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:38:01,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:38:01,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:38:02,178 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-22 12:38:02,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:38:02,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837452763] [2024-11-22 12:38:02,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837452763] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:38:02,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:38:02,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-22 12:38:02,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579279186] [2024-11-22 12:38:02,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:38:02,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 12:38:02,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:38:02,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 12:38:02,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-22 12:38:02,181 INFO L87 Difference]: Start difference. First operand 1310 states and 1705 transitions. Second operand has 10 states, 8 states have (on average 7.25) internal successors, (58), 10 states have internal predecessors, (58), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-22 12:38:03,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:38:03,148 INFO L93 Difference]: Finished difference Result 2930 states and 3816 transitions. [2024-11-22 12:38:03,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 12:38:03,149 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 7.25) internal successors, (58), 10 states have internal predecessors, (58), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 150 [2024-11-22 12:38:03,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:38:03,157 INFO L225 Difference]: With dead ends: 2930 [2024-11-22 12:38:03,157 INFO L226 Difference]: Without dead ends: 1640 [2024-11-22 12:38:03,160 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-22 12:38:03,161 INFO L432 NwaCegarLoop]: 151 mSDtfsCounter, 243 mSDsluCounter, 576 mSDsCounter, 0 mSdLazyCounter, 751 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 727 SdHoareTripleChecker+Invalid, 784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 751 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-22 12:38:03,162 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 727 Invalid, 784 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 751 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-22 12:38:03,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1640 states. [2024-11-22 12:38:03,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1640 to 1019. [2024-11-22 12:38:03,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1019 states, 827 states have (on average 1.2164449818621523) internal successors, (1006), 838 states have internal predecessors, (1006), 158 states have call successors, (158), 33 states have call predecessors, (158), 33 states have return successors, (158), 147 states have call predecessors, (158), 158 states have call successors, (158) [2024-11-22 12:38:03,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1019 states to 1019 states and 1322 transitions. [2024-11-22 12:38:03,370 INFO L78 Accepts]: Start accepts. Automaton has 1019 states and 1322 transitions. Word has length 150 [2024-11-22 12:38:03,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:38:03,371 INFO L471 AbstractCegarLoop]: Abstraction has 1019 states and 1322 transitions. [2024-11-22 12:38:03,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 7.25) internal successors, (58), 10 states have internal predecessors, (58), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-22 12:38:03,371 INFO L276 IsEmpty]: Start isEmpty. Operand 1019 states and 1322 transitions. [2024-11-22 12:38:03,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-22 12:38:03,372 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:38:03,373 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] [2024-11-22 12:38:03,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-22 12:38:03,373 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:38:03,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:38:03,373 INFO L85 PathProgramCache]: Analyzing trace with hash 1583477417, now seen corresponding path program 1 times [2024-11-22 12:38:03,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:38:03,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583487482] [2024-11-22 12:38:03,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:38:03,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:38:03,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:38:03,881 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-22 12:38:03,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:38:03,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583487482] [2024-11-22 12:38:03,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583487482] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:38:03,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:38:03,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-22 12:38:03,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478424264] [2024-11-22 12:38:03,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:38:03,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 12:38:03,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:38:03,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 12:38:03,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-22 12:38:03,884 INFO L87 Difference]: Start difference. First operand 1019 states and 1322 transitions. Second operand has 10 states, 9 states have (on average 6.444444444444445) internal successors, (58), 10 states have internal predecessors, (58), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-22 12:38:04,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:38:04,698 INFO L93 Difference]: Finished difference Result 2149 states and 2792 transitions. [2024-11-22 12:38:04,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 12:38:04,699 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.444444444444445) internal successors, (58), 10 states have internal predecessors, (58), 2 states have call successors, (19), 1 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 150 [2024-11-22 12:38:04,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:38:04,706 INFO L225 Difference]: With dead ends: 2149 [2024-11-22 12:38:04,707 INFO L226 Difference]: Without dead ends: 1150 [2024-11-22 12:38:04,709 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-22 12:38:04,710 INFO L432 NwaCegarLoop]: 200 mSDtfsCounter, 93 mSDsluCounter, 1103 mSDsCounter, 0 mSdLazyCounter, 665 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 1303 SdHoareTripleChecker+Invalid, 666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 12:38:04,710 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 1303 Invalid, 666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 665 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 12:38:04,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1150 states. [2024-11-22 12:38:04,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1150 to 1019. [2024-11-22 12:38:04,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1019 states, 827 states have (on average 1.2140266021765418) internal successors, (1004), 838 states have internal predecessors, (1004), 158 states have call successors, (158), 33 states have call predecessors, (158), 33 states have return successors, (158), 147 states have call predecessors, (158), 158 states have call successors, (158) [2024-11-22 12:38:04,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1019 states to 1019 states and 1320 transitions. [2024-11-22 12:38:04,988 INFO L78 Accepts]: Start accepts. Automaton has 1019 states and 1320 transitions. Word has length 150 [2024-11-22 12:38:04,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:38:04,988 INFO L471 AbstractCegarLoop]: Abstraction has 1019 states and 1320 transitions. [2024-11-22 12:38:04,989 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.444444444444445) internal successors, (58), 10 states have internal predecessors, (58), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-22 12:38:04,989 INFO L276 IsEmpty]: Start isEmpty. Operand 1019 states and 1320 transitions. [2024-11-22 12:38:04,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-22 12:38:04,990 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:38:04,990 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] [2024-11-22 12:38:04,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-22 12:38:04,991 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:38:04,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:38:04,991 INFO L85 PathProgramCache]: Analyzing trace with hash 781373223, now seen corresponding path program 1 times [2024-11-22 12:38:04,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:38:04,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790440194] [2024-11-22 12:38:04,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:38:04,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:38:05,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:38:06,263 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-22 12:38:06,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:38:06,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790440194] [2024-11-22 12:38:06,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790440194] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:38:06,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:38:06,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-22 12:38:06,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227393125] [2024-11-22 12:38:06,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:38:06,265 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-22 12:38:06,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:38:06,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-22 12:38:06,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-22 12:38:06,266 INFO L87 Difference]: Start difference. First operand 1019 states and 1320 transitions. Second operand has 13 states, 10 states have (on average 5.8) internal successors, (58), 13 states have internal predecessors, (58), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-22 12:38:07,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:38:07,339 INFO L93 Difference]: Finished difference Result 2135 states and 2769 transitions. [2024-11-22 12:38:07,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-22 12:38:07,340 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 10 states have (on average 5.8) internal successors, (58), 13 states have internal predecessors, (58), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) Word has length 150 [2024-11-22 12:38:07,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:38:07,347 INFO L225 Difference]: With dead ends: 2135 [2024-11-22 12:38:07,347 INFO L226 Difference]: Without dead ends: 1136 [2024-11-22 12:38:07,350 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=275, Unknown=0, NotChecked=0, Total=342 [2024-11-22 12:38:07,351 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 256 mSDsluCounter, 993 mSDsCounter, 0 mSdLazyCounter, 1071 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 1154 SdHoareTripleChecker+Invalid, 1169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 1071 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-22 12:38:07,351 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [259 Valid, 1154 Invalid, 1169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 1071 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-22 12:38:07,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1136 states. [2024-11-22 12:38:07,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1136 to 1011. [2024-11-22 12:38:07,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1011 states, 819 states have (on average 1.2063492063492063) internal successors, (988), 830 states have internal predecessors, (988), 158 states have call successors, (158), 33 states have call predecessors, (158), 33 states have return successors, (158), 147 states have call predecessors, (158), 158 states have call successors, (158) [2024-11-22 12:38:07,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1011 states to 1011 states and 1304 transitions. [2024-11-22 12:38:07,575 INFO L78 Accepts]: Start accepts. Automaton has 1011 states and 1304 transitions. Word has length 150 [2024-11-22 12:38:07,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:38:07,576 INFO L471 AbstractCegarLoop]: Abstraction has 1011 states and 1304 transitions. [2024-11-22 12:38:07,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 10 states have (on average 5.8) internal successors, (58), 13 states have internal predecessors, (58), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-22 12:38:07,576 INFO L276 IsEmpty]: Start isEmpty. Operand 1011 states and 1304 transitions. [2024-11-22 12:38:07,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-22 12:38:07,580 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:38:07,580 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] [2024-11-22 12:38:07,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-22 12:38:07,581 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:38:07,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:38:07,581 INFO L85 PathProgramCache]: Analyzing trace with hash -1681350053, now seen corresponding path program 1 times [2024-11-22 12:38:07,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:38:07,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982943494] [2024-11-22 12:38:07,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:38:07,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:38:07,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:38:08,059 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-22 12:38:08,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:38:08,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982943494] [2024-11-22 12:38:08,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982943494] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:38:08,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:38:08,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-22 12:38:08,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084087298] [2024-11-22 12:38:08,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:38:08,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-22 12:38:08,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:38:08,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-22 12:38:08,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-22 12:38:08,061 INFO L87 Difference]: Start difference. First operand 1011 states and 1304 transitions. Second operand has 11 states, 10 states have (on average 5.8) internal successors, (58), 11 states have internal predecessors, (58), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-22 12:38:08,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:38:08,677 INFO L93 Difference]: Finished difference Result 2137 states and 2755 transitions. [2024-11-22 12:38:08,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-22 12:38:08,678 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.8) internal successors, (58), 11 states have internal predecessors, (58), 2 states have call successors, (19), 1 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 150 [2024-11-22 12:38:08,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:38:08,685 INFO L225 Difference]: With dead ends: 2137 [2024-11-22 12:38:08,685 INFO L226 Difference]: Without dead ends: 1146 [2024-11-22 12:38:08,688 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2024-11-22 12:38:08,689 INFO L432 NwaCegarLoop]: 186 mSDtfsCounter, 200 mSDsluCounter, 900 mSDsCounter, 0 mSdLazyCounter, 625 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 1086 SdHoareTripleChecker+Invalid, 656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 625 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 12:38:08,689 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 1086 Invalid, 656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 625 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 12:38:08,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1146 states. [2024-11-22 12:38:08,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1146 to 720. [2024-11-22 12:38:08,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 720 states, 598 states have (on average 1.2190635451505016) internal successors, (729), 604 states have internal predecessors, (729), 98 states have call successors, (98), 23 states have call predecessors, (98), 23 states have return successors, (98), 92 states have call predecessors, (98), 98 states have call successors, (98) [2024-11-22 12:38:08,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 720 states to 720 states and 925 transitions. [2024-11-22 12:38:08,832 INFO L78 Accepts]: Start accepts. Automaton has 720 states and 925 transitions. Word has length 150 [2024-11-22 12:38:08,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:38:08,832 INFO L471 AbstractCegarLoop]: Abstraction has 720 states and 925 transitions. [2024-11-22 12:38:08,832 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.8) internal successors, (58), 11 states have internal predecessors, (58), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-22 12:38:08,833 INFO L276 IsEmpty]: Start isEmpty. Operand 720 states and 925 transitions. [2024-11-22 12:38:08,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-22 12:38:08,834 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:38:08,834 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] [2024-11-22 12:38:08,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-22 12:38:08,835 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:38:08,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:38:08,835 INFO L85 PathProgramCache]: Analyzing trace with hash -1477930149, now seen corresponding path program 1 times [2024-11-22 12:38:08,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:38:08,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015707649] [2024-11-22 12:38:08,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:38:08,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:38:08,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:38:09,569 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-22 12:38:09,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:38:09,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015707649] [2024-11-22 12:38:09,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015707649] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:38:09,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:38:09,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-22 12:38:09,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018356165] [2024-11-22 12:38:09,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:38:09,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-22 12:38:09,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:38:09,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-22 12:38:09,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-22 12:38:09,571 INFO L87 Difference]: Start difference. First operand 720 states and 925 transitions. Second operand has 11 states, 10 states have (on average 5.8) internal successors, (58), 11 states have internal predecessors, (58), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-22 12:38:10,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:38:10,145 INFO L93 Difference]: Finished difference Result 1585 states and 2036 transitions. [2024-11-22 12:38:10,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-22 12:38:10,146 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.8) internal successors, (58), 11 states have internal predecessors, (58), 2 states have call successors, (19), 1 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 150 [2024-11-22 12:38:10,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:38:10,150 INFO L225 Difference]: With dead ends: 1585 [2024-11-22 12:38:10,151 INFO L226 Difference]: Without dead ends: 864 [2024-11-22 12:38:10,152 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2024-11-22 12:38:10,153 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 94 mSDsluCounter, 830 mSDsCounter, 0 mSdLazyCounter, 677 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 991 SdHoareTripleChecker+Invalid, 679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 677 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 12:38:10,153 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 991 Invalid, 679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 677 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 12:38:10,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 864 states. [2024-11-22 12:38:10,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 864 to 716. [2024-11-22 12:38:10,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 594 states have (on average 1.2171717171717171) internal successors, (723), 600 states have internal predecessors, (723), 98 states have call successors, (98), 23 states have call predecessors, (98), 23 states have return successors, (98), 92 states have call predecessors, (98), 98 states have call successors, (98) [2024-11-22 12:38:10,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 919 transitions. [2024-11-22 12:38:10,291 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 919 transitions. Word has length 150 [2024-11-22 12:38:10,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:38:10,291 INFO L471 AbstractCegarLoop]: Abstraction has 716 states and 919 transitions. [2024-11-22 12:38:10,292 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.8) internal successors, (58), 11 states have internal predecessors, (58), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-22 12:38:10,292 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 919 transitions. [2024-11-22 12:38:10,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-22 12:38:10,293 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:38:10,293 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] [2024-11-22 12:38:10,293 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-22 12:38:10,294 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:38:10,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:38:10,294 INFO L85 PathProgramCache]: Analyzing trace with hash 1795968793, now seen corresponding path program 1 times [2024-11-22 12:38:10,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:38:10,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241554859] [2024-11-22 12:38:10,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:38:10,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:38:10,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:38:10,735 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-22 12:38:10,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:38:10,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241554859] [2024-11-22 12:38:10,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241554859] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:38:10,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:38:10,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-22 12:38:10,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158155151] [2024-11-22 12:38:10,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:38:10,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 12:38:10,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:38:10,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 12:38:10,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-22 12:38:10,736 INFO L87 Difference]: Start difference. First operand 716 states and 919 transitions. Second operand has 9 states, 8 states have (on average 7.25) internal successors, (58), 9 states have internal predecessors, (58), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-22 12:38:11,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:38:11,199 INFO L93 Difference]: Finished difference Result 1577 states and 2024 transitions. [2024-11-22 12:38:11,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 12:38:11,199 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.25) internal successors, (58), 9 states have internal predecessors, (58), 2 states have call successors, (19), 1 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 150 [2024-11-22 12:38:11,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:38:11,205 INFO L225 Difference]: With dead ends: 1577 [2024-11-22 12:38:11,205 INFO L226 Difference]: Without dead ends: 864 [2024-11-22 12:38:11,207 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-22 12:38:11,207 INFO L432 NwaCegarLoop]: 174 mSDtfsCounter, 92 mSDsluCounter, 767 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 941 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 12:38:11,207 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 941 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 498 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 12:38:11,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 864 states. [2024-11-22 12:38:11,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 864 to 704. [2024-11-22 12:38:11,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 704 states, 582 states have (on average 1.2147766323024054) internal successors, (707), 588 states have internal predecessors, (707), 98 states have call successors, (98), 23 states have call predecessors, (98), 23 states have return successors, (98), 92 states have call predecessors, (98), 98 states have call successors, (98) [2024-11-22 12:38:11,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 704 states to 704 states and 903 transitions. [2024-11-22 12:38:11,355 INFO L78 Accepts]: Start accepts. Automaton has 704 states and 903 transitions. Word has length 150 [2024-11-22 12:38:11,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:38:11,356 INFO L471 AbstractCegarLoop]: Abstraction has 704 states and 903 transitions. [2024-11-22 12:38:11,356 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.25) internal successors, (58), 9 states have internal predecessors, (58), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-22 12:38:11,356 INFO L276 IsEmpty]: Start isEmpty. Operand 704 states and 903 transitions. [2024-11-22 12:38:11,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-22 12:38:11,357 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:38:11,357 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] [2024-11-22 12:38:11,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-22 12:38:11,358 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:38:11,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:38:11,358 INFO L85 PathProgramCache]: Analyzing trace with hash -975777600, now seen corresponding path program 1 times [2024-11-22 12:38:11,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:38:11,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127956991] [2024-11-22 12:38:11,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:38:11,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:38:11,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:38:11,982 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-22 12:38:11,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:38:11,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127956991] [2024-11-22 12:38:11,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127956991] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:38:11,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:38:11,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-22 12:38:11,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775081175] [2024-11-22 12:38:11,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:38:11,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 12:38:11,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:38:11,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 12:38:11,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-22 12:38:11,983 INFO L87 Difference]: Start difference. First operand 704 states and 903 transitions. Second operand has 10 states, 9 states have (on average 6.444444444444445) internal successors, (58), 10 states have internal predecessors, (58), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-22 12:38:12,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:38:12,653 INFO L93 Difference]: Finished difference Result 1459 states and 1870 transitions. [2024-11-22 12:38:12,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 12:38:12,654 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.444444444444445) internal successors, (58), 10 states have internal predecessors, (58), 2 states have call successors, (19), 1 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 150 [2024-11-22 12:38:12,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:38:12,666 INFO L225 Difference]: With dead ends: 1459 [2024-11-22 12:38:12,667 INFO L226 Difference]: Without dead ends: 758 [2024-11-22 12:38:12,668 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2024-11-22 12:38:12,673 INFO L432 NwaCegarLoop]: 207 mSDtfsCounter, 93 mSDsluCounter, 1282 mSDsCounter, 0 mSdLazyCounter, 563 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 1489 SdHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 563 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 12:38:12,673 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 1489 Invalid, 565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 563 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 12:38:12,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 758 states. [2024-11-22 12:38:12,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 758 to 716. [2024-11-22 12:38:12,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 594 states have (on average 1.2104377104377104) internal successors, (719), 600 states have internal predecessors, (719), 98 states have call successors, (98), 23 states have call predecessors, (98), 23 states have return successors, (98), 92 states have call predecessors, (98), 98 states have call successors, (98) [2024-11-22 12:38:12,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 915 transitions. [2024-11-22 12:38:12,833 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 915 transitions. Word has length 150 [2024-11-22 12:38:12,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:38:12,833 INFO L471 AbstractCegarLoop]: Abstraction has 716 states and 915 transitions. [2024-11-22 12:38:12,834 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.444444444444445) internal successors, (58), 10 states have internal predecessors, (58), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-22 12:38:12,834 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 915 transitions. [2024-11-22 12:38:12,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-22 12:38:12,835 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:38:12,835 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] [2024-11-22 12:38:12,835 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-22 12:38:12,836 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:38:12,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:38:12,836 INFO L85 PathProgramCache]: Analyzing trace with hash 818719858, now seen corresponding path program 1 times [2024-11-22 12:38:12,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:38:12,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33455408] [2024-11-22 12:38:12,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:38:12,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:38:12,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:38:14,075 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-22 12:38:14,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:38:14,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33455408] [2024-11-22 12:38:14,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33455408] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:38:14,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:38:14,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-22 12:38:14,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869294537] [2024-11-22 12:38:14,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:38:14,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-22 12:38:14,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:38:14,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-22 12:38:14,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-11-22 12:38:14,077 INFO L87 Difference]: Start difference. First operand 716 states and 915 transitions. Second operand has 12 states, 10 states have (on average 5.9) internal successors, (59), 12 states have internal predecessors, (59), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-22 12:38:15,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:38:15,190 INFO L93 Difference]: Finished difference Result 1730 states and 2216 transitions. [2024-11-22 12:38:15,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-22 12:38:15,191 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 5.9) internal successors, (59), 12 states have internal predecessors, (59), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 151 [2024-11-22 12:38:15,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:38:15,195 INFO L225 Difference]: With dead ends: 1730 [2024-11-22 12:38:15,195 INFO L226 Difference]: Without dead ends: 1017 [2024-11-22 12:38:15,196 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2024-11-22 12:38:15,197 INFO L432 NwaCegarLoop]: 218 mSDtfsCounter, 178 mSDsluCounter, 1245 mSDsCounter, 0 mSdLazyCounter, 1245 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 1463 SdHoareTripleChecker+Invalid, 1248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-22 12:38:15,197 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 1463 Invalid, 1248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1245 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-22 12:38:15,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1017 states. [2024-11-22 12:38:15,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1017 to 720. [2024-11-22 12:38:15,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 720 states, 598 states have (on average 1.2157190635451505) internal successors, (727), 604 states have internal predecessors, (727), 98 states have call successors, (98), 23 states have call predecessors, (98), 23 states have return successors, (98), 92 states have call predecessors, (98), 98 states have call successors, (98) [2024-11-22 12:38:15,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 720 states to 720 states and 923 transitions. [2024-11-22 12:38:15,357 INFO L78 Accepts]: Start accepts. Automaton has 720 states and 923 transitions. Word has length 151 [2024-11-22 12:38:15,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:38:15,358 INFO L471 AbstractCegarLoop]: Abstraction has 720 states and 923 transitions. [2024-11-22 12:38:15,358 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 5.9) internal successors, (59), 12 states have internal predecessors, (59), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-22 12:38:15,358 INFO L276 IsEmpty]: Start isEmpty. Operand 720 states and 923 transitions. [2024-11-22 12:38:15,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-22 12:38:15,359 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:38:15,359 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] [2024-11-22 12:38:15,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-22 12:38:15,360 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:38:15,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:38:15,360 INFO L85 PathProgramCache]: Analyzing trace with hash 1241421684, now seen corresponding path program 1 times [2024-11-22 12:38:15,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:38:15,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943035385] [2024-11-22 12:38:15,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:38:15,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:38:15,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:38:16,265 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-22 12:38:16,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:38:16,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943035385] [2024-11-22 12:38:16,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943035385] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:38:16,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:38:16,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-22 12:38:16,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421083168] [2024-11-22 12:38:16,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:38:16,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-22 12:38:16,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:38:16,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-22 12:38:16,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-11-22 12:38:16,267 INFO L87 Difference]: Start difference. First operand 720 states and 923 transitions. Second operand has 13 states, 10 states have (on average 5.9) internal successors, (59), 13 states have internal predecessors, (59), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19)