./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-32.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-32.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 4c0ba744090c8142a33dba842cf98027b64f47a633efca28c0047c8830fe4fa5 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 11:15:11,511 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 11:15:11,608 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 11:15:11,614 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 11:15:11,616 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 11:15:11,637 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 11:15:11,637 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 11:15:11,637 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 11:15:11,638 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 11:15:11,638 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 11:15:11,639 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 11:15:11,639 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 11:15:11,639 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 11:15:11,640 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 11:15:11,642 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 11:15:11,642 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 11:15:11,642 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 11:15:11,642 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 11:15:11,643 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 11:15:11,643 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 11:15:11,643 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 11:15:11,646 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 11:15:11,646 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 11:15:11,647 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 11:15:11,647 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 11:15:11,647 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 11:15:11,647 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 11:15:11,647 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 11:15:11,647 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 11:15:11,648 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 11:15:11,648 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 11:15:11,648 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 11:15:11,648 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 11:15:11,648 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 11:15:11,648 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 11:15:11,648 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 11:15:11,649 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 11:15:11,649 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 11:15:11,649 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 11:15:11,650 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 11:15:11,651 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 11:15:11,651 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 11:15:11,651 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4c0ba744090c8142a33dba842cf98027b64f47a633efca28c0047c8830fe4fa5 [2024-10-24 11:15:11,858 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 11:15:11,887 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 11:15:11,889 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 11:15:11,890 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 11:15:11,890 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 11:15:11,891 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-32.i [2024-10-24 11:15:13,225 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 11:15:13,446 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 11:15:13,447 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-32.i [2024-10-24 11:15:13,456 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1faa32196/3519d854b039411690098a7ed6b1137e/FLAG2e7ea48b2 [2024-10-24 11:15:13,470 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1faa32196/3519d854b039411690098a7ed6b1137e [2024-10-24 11:15:13,472 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 11:15:13,473 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 11:15:13,474 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 11:15:13,475 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 11:15:13,483 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 11:15:13,483 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:15:13" (1/1) ... [2024-10-24 11:15:13,484 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63102b1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:15:13, skipping insertion in model container [2024-10-24 11:15:13,484 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:15:13" (1/1) ... [2024-10-24 11:15:13,514 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 11:15:13,680 WARN L248 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-32.i[916,929] [2024-10-24 11:15:13,748 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 11:15:13,760 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 11:15:13,769 WARN L248 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-32.i[916,929] [2024-10-24 11:15:13,807 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 11:15:13,825 INFO L204 MainTranslator]: Completed translation [2024-10-24 11:15:13,825 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:15:13 WrapperNode [2024-10-24 11:15:13,825 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 11:15:13,826 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 11:15:13,826 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 11:15:13,826 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 11:15:13,835 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:15:13" (1/1) ... [2024-10-24 11:15:13,848 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:15:13" (1/1) ... [2024-10-24 11:15:13,876 INFO L138 Inliner]: procedures = 26, calls = 158, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 440 [2024-10-24 11:15:13,877 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 11:15:13,877 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 11:15:13,877 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 11:15:13,877 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 11:15:13,886 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:15:13" (1/1) ... [2024-10-24 11:15:13,887 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:15:13" (1/1) ... [2024-10-24 11:15:13,891 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:15:13" (1/1) ... [2024-10-24 11:15:13,916 INFO L175 MemorySlicer]: Split 124 memory accesses to 6 slices as follows [2, 14, 23, 8, 24, 53]. 43 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 2, 3, 1, 2, 4]. The 15 writes are split as follows [0, 2, 5, 2, 2, 4]. [2024-10-24 11:15:13,920 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:15:13" (1/1) ... [2024-10-24 11:15:13,920 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:15:13" (1/1) ... [2024-10-24 11:15:13,942 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:15:13" (1/1) ... [2024-10-24 11:15:13,947 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:15:13" (1/1) ... [2024-10-24 11:15:13,952 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:15:13" (1/1) ... [2024-10-24 11:15:13,954 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:15:13" (1/1) ... [2024-10-24 11:15:13,963 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 11:15:13,967 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 11:15:13,967 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 11:15:13,968 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 11:15:13,969 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:15:13" (1/1) ... [2024-10-24 11:15:13,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 11:15:13,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 11:15:13,996 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) [2024-10-24 11:15:13,998 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 [2024-10-24 11:15:14,036 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 11:15:14,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-24 11:15:14,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-24 11:15:14,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-24 11:15:14,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-24 11:15:14,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-10-24 11:15:14,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-10-24 11:15:14,039 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-24 11:15:14,039 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-24 11:15:14,039 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-24 11:15:14,039 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-24 11:15:14,040 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-24 11:15:14,040 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-10-24 11:15:14,040 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-24 11:15:14,040 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-24 11:15:14,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 11:15:14,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-24 11:15:14,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-24 11:15:14,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-24 11:15:14,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-24 11:15:14,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-10-24 11:15:14,041 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 11:15:14,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 11:15:14,158 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 11:15:14,160 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 11:15:14,541 INFO L? ?]: Removed 107 outVars from TransFormulas that were not future-live. [2024-10-24 11:15:14,541 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 11:15:14,563 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 11:15:14,564 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 11:15:14,564 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:15:14 BoogieIcfgContainer [2024-10-24 11:15:14,564 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 11:15:14,566 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 11:15:14,566 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 11:15:14,568 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 11:15:14,569 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:15:13" (1/3) ... [2024-10-24 11:15:14,569 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23c5f38e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:15:14, skipping insertion in model container [2024-10-24 11:15:14,569 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:15:13" (2/3) ... [2024-10-24 11:15:14,570 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23c5f38e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:15:14, skipping insertion in model container [2024-10-24 11:15:14,570 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:15:14" (3/3) ... [2024-10-24 11:15:14,571 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-32.i [2024-10-24 11:15:14,585 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 11:15:14,586 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 11:15:14,637 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 11:15:14,643 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;@5542dd50, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 11:15:14,644 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 11:15:14,648 INFO L276 IsEmpty]: Start isEmpty. Operand has 92 states, 71 states have (on average 1.408450704225352) internal successors, (100), 72 states have internal predecessors, (100), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-10-24 11:15:14,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-10-24 11:15:14,663 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:15:14,663 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:15:14,664 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:15:14,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:15:14,671 INFO L85 PathProgramCache]: Analyzing trace with hash 841249278, now seen corresponding path program 1 times [2024-10-24 11:15:14,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:15:14,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877831606] [2024-10-24 11:15:14,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:15:14,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:15:14,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:14,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:15:14,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:14,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:15:14,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:14,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:15:14,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:14,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:15:14,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:14,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:15:14,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:14,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:15:14,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:14,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:15:14,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:14,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:15:14,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:14,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:15:14,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:14,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:15:14,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:14,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:15:14,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:14,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:15:14,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:14,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:15:14,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:14,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:15:14,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:14,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:15:14,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:14,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:15:14,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:14,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:15:14,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:15,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:15:15,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:15,007 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:15:15,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:15:15,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877831606] [2024-10-24 11:15:15,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877831606] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:15:15,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:15:15,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 11:15:15,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065260108] [2024-10-24 11:15:15,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:15:15,015 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 11:15:15,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:15:15,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 11:15:15,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 11:15:15,039 INFO L87 Difference]: Start difference. First operand has 92 states, 71 states have (on average 1.408450704225352) internal successors, (100), 72 states have internal predecessors, (100), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-10-24 11:15:15,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:15:15,077 INFO L93 Difference]: Finished difference Result 181 states and 288 transitions. [2024-10-24 11:15:15,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 11:15:15,080 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 124 [2024-10-24 11:15:15,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:15:15,086 INFO L225 Difference]: With dead ends: 181 [2024-10-24 11:15:15,087 INFO L226 Difference]: Without dead ends: 90 [2024-10-24 11:15:15,091 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 11:15:15,094 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 11:15:15,095 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 123 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 11:15:15,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-10-24 11:15:15,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2024-10-24 11:15:15,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 70 states have (on average 1.3) internal successors, (91), 70 states have internal predecessors, (91), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-10-24 11:15:15,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 127 transitions. [2024-10-24 11:15:15,209 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 127 transitions. Word has length 124 [2024-10-24 11:15:15,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:15:15,209 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 127 transitions. [2024-10-24 11:15:15,209 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-10-24 11:15:15,210 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 127 transitions. [2024-10-24 11:15:15,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-10-24 11:15:15,212 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:15:15,212 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:15:15,212 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 11:15:15,212 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:15:15,213 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:15:15,213 INFO L85 PathProgramCache]: Analyzing trace with hash 2096020442, now seen corresponding path program 1 times [2024-10-24 11:15:15,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:15:15,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505563196] [2024-10-24 11:15:15,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:15:15,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:15:15,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:15,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:15:15,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:15,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:15:15,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:15,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:15:15,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:15,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:15:15,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:15,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:15:15,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:15,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:15:15,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:15,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:15:15,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:15,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:15:15,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:15,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:15:15,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:15,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:15:15,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:15,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:15:15,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:15,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:15:15,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:15,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:15:15,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:15,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:15:15,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:15,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:15:15,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:15,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:15:15,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:15,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:15:15,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:15,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:15:15,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:15,561 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:15:15,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:15:15,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505563196] [2024-10-24 11:15:15,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505563196] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:15:15,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:15:15,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 11:15:15,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669647042] [2024-10-24 11:15:15,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:15:15,563 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 11:15:15,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:15:15,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 11:15:15,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 11:15:15,565 INFO L87 Difference]: Start difference. First operand 90 states and 127 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:15:15,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:15:15,717 INFO L93 Difference]: Finished difference Result 306 states and 432 transitions. [2024-10-24 11:15:15,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 11:15:15,717 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 124 [2024-10-24 11:15:15,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:15:15,724 INFO L225 Difference]: With dead ends: 306 [2024-10-24 11:15:15,724 INFO L226 Difference]: Without dead ends: 217 [2024-10-24 11:15:15,724 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 11:15:15,725 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 206 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 11:15:15,725 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 350 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 11:15:15,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2024-10-24 11:15:15,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 185. [2024-10-24 11:15:15,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 146 states have (on average 1.3013698630136987) internal successors, (190), 146 states have internal predecessors, (190), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-10-24 11:15:15,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 262 transitions. [2024-10-24 11:15:15,761 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 262 transitions. Word has length 124 [2024-10-24 11:15:15,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:15:15,764 INFO L471 AbstractCegarLoop]: Abstraction has 185 states and 262 transitions. [2024-10-24 11:15:15,765 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:15:15,765 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 262 transitions. [2024-10-24 11:15:15,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-10-24 11:15:15,767 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:15:15,767 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:15:15,767 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 11:15:15,767 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:15:15,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:15:15,771 INFO L85 PathProgramCache]: Analyzing trace with hash 442873600, now seen corresponding path program 1 times [2024-10-24 11:15:15,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:15:15,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873944800] [2024-10-24 11:15:15,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:15:15,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:15:15,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:16,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:15:16,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:16,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:15:16,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:16,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:15:16,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:16,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:15:16,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:16,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:15:16,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:16,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:15:16,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:16,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:15:16,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:16,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:15:16,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:16,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:15:16,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:16,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:15:16,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:16,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:15:16,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:16,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:15:16,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:16,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:15:16,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:16,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:15:16,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:16,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:15:16,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:16,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:15:16,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:16,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:15:16,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:16,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:15:16,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:16,909 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:15:16,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:15:16,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873944800] [2024-10-24 11:15:16,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873944800] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:15:16,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:15:16,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-24 11:15:16,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612027305] [2024-10-24 11:15:16,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:15:16,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 11:15:16,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:15:16,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 11:15:16,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-10-24 11:15:16,911 INFO L87 Difference]: Start difference. First operand 185 states and 262 transitions. Second operand has 12 states, 11 states have (on average 4.090909090909091) internal successors, (45), 12 states have internal predecessors, (45), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-10-24 11:15:17,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:15:17,361 INFO L93 Difference]: Finished difference Result 525 states and 744 transitions. [2024-10-24 11:15:17,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 11:15:17,362 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.090909090909091) internal successors, (45), 12 states have internal predecessors, (45), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 132 [2024-10-24 11:15:17,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:15:17,365 INFO L225 Difference]: With dead ends: 525 [2024-10-24 11:15:17,366 INFO L226 Difference]: Without dead ends: 341 [2024-10-24 11:15:17,368 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2024-10-24 11:15:17,370 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 100 mSDsluCounter, 683 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 780 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 11:15:17,370 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 780 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 500 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 11:15:17,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2024-10-24 11:15:17,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 337. [2024-10-24 11:15:17,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 272 states have (on average 1.3125) internal successors, (357), 274 states have internal predecessors, (357), 60 states have call successors, (60), 4 states have call predecessors, (60), 4 states have return successors, (60), 58 states have call predecessors, (60), 60 states have call successors, (60) [2024-10-24 11:15:17,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 477 transitions. [2024-10-24 11:15:17,405 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 477 transitions. Word has length 132 [2024-10-24 11:15:17,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:15:17,405 INFO L471 AbstractCegarLoop]: Abstraction has 337 states and 477 transitions. [2024-10-24 11:15:17,406 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.090909090909091) internal successors, (45), 12 states have internal predecessors, (45), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-10-24 11:15:17,406 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 477 transitions. [2024-10-24 11:15:17,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-10-24 11:15:17,407 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:15:17,407 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:15:17,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 11:15:17,408 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:15:17,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:15:17,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1233213465, now seen corresponding path program 1 times [2024-10-24 11:15:17,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:15:17,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2517635] [2024-10-24 11:15:17,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:15:17,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:15:17,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:18,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:15:18,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:18,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:15:18,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:18,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:15:18,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:18,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:15:18,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:18,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:15:18,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:18,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:15:18,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:18,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:15:18,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:18,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:15:18,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:18,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:15:18,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:18,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:15:18,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:18,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:15:18,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:18,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:15:18,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:18,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:15:18,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:18,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:15:18,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:18,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:15:18,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:18,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:15:18,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:18,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:15:18,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:18,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:15:18,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:18,964 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:15:18,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:15:18,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2517635] [2024-10-24 11:15:18,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2517635] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:15:18,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:15:18,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-10-24 11:15:18,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186674374] [2024-10-24 11:15:18,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:15:18,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-24 11:15:18,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:15:18,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-24 11:15:18,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2024-10-24 11:15:18,966 INFO L87 Difference]: Start difference. First operand 337 states and 477 transitions. Second operand has 18 states, 15 states have (on average 3.1333333333333333) internal successors, (47), 18 states have internal predecessors, (47), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 4 states have call successors, (18) [2024-10-24 11:15:20,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:15:20,705 INFO L93 Difference]: Finished difference Result 833 states and 1167 transitions. [2024-10-24 11:15:20,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-24 11:15:20,706 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 15 states have (on average 3.1333333333333333) internal successors, (47), 18 states have internal predecessors, (47), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 4 states have call successors, (18) Word has length 134 [2024-10-24 11:15:20,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:15:20,715 INFO L225 Difference]: With dead ends: 833 [2024-10-24 11:15:20,715 INFO L226 Difference]: Without dead ends: 497 [2024-10-24 11:15:20,720 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=114, Invalid=588, Unknown=0, NotChecked=0, Total=702 [2024-10-24 11:15:20,722 INFO L432 NwaCegarLoop]: 130 mSDtfsCounter, 464 mSDsluCounter, 1144 mSDsCounter, 0 mSdLazyCounter, 1328 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 467 SdHoareTripleChecker+Valid, 1274 SdHoareTripleChecker+Invalid, 1451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 1328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-24 11:15:20,722 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [467 Valid, 1274 Invalid, 1451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 1328 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-24 11:15:20,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2024-10-24 11:15:20,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 344. [2024-10-24 11:15:20,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 279 states have (on average 1.3082437275985663) internal successors, (365), 281 states have internal predecessors, (365), 60 states have call successors, (60), 4 states have call predecessors, (60), 4 states have return successors, (60), 58 states have call predecessors, (60), 60 states have call successors, (60) [2024-10-24 11:15:20,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 485 transitions. [2024-10-24 11:15:20,770 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 485 transitions. Word has length 134 [2024-10-24 11:15:20,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:15:20,771 INFO L471 AbstractCegarLoop]: Abstraction has 344 states and 485 transitions. [2024-10-24 11:15:20,771 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 15 states have (on average 3.1333333333333333) internal successors, (47), 18 states have internal predecessors, (47), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 4 states have call successors, (18) [2024-10-24 11:15:20,771 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 485 transitions. [2024-10-24 11:15:20,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-10-24 11:15:20,772 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:15:20,773 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:15:20,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 11:15:20,774 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:15:20,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:15:20,775 INFO L85 PathProgramCache]: Analyzing trace with hash 1089429525, now seen corresponding path program 1 times [2024-10-24 11:15:20,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:15:20,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206766081] [2024-10-24 11:15:20,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:15:20,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:15:20,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:20,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:15:20,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:20,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:15:20,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:20,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:15:20,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:20,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:15:20,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:20,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:15:20,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:20,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:15:20,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:20,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:15:20,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:20,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:15:20,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:20,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:15:20,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:20,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:15:20,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:20,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:15:20,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:20,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:15:20,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:20,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:15:20,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:20,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:15:20,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:20,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:15:20,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:20,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:15:20,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:20,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:15:20,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:20,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:15:20,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:20,980 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:15:20,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:15:20,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206766081] [2024-10-24 11:15:20,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206766081] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:15:20,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:15:20,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 11:15:20,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674515383] [2024-10-24 11:15:20,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:15:20,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 11:15:20,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:15:20,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 11:15:20,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 11:15:20,986 INFO L87 Difference]: Start difference. First operand 344 states and 485 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:15:21,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:15:21,036 INFO L93 Difference]: Finished difference Result 699 states and 985 transitions. [2024-10-24 11:15:21,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 11:15:21,037 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 134 [2024-10-24 11:15:21,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:15:21,041 INFO L225 Difference]: With dead ends: 699 [2024-10-24 11:15:21,041 INFO L226 Difference]: Without dead ends: 356 [2024-10-24 11:15:21,042 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 11:15:21,042 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 0 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 11:15:21,043 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 470 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 11:15:21,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2024-10-24 11:15:21,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 356. [2024-10-24 11:15:21,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 291 states have (on average 1.29553264604811) internal successors, (377), 293 states have internal predecessors, (377), 60 states have call successors, (60), 4 states have call predecessors, (60), 4 states have return successors, (60), 58 states have call predecessors, (60), 60 states have call successors, (60) [2024-10-24 11:15:21,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 497 transitions. [2024-10-24 11:15:21,067 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 497 transitions. Word has length 134 [2024-10-24 11:15:21,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:15:21,067 INFO L471 AbstractCegarLoop]: Abstraction has 356 states and 497 transitions. [2024-10-24 11:15:21,067 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:15:21,068 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 497 transitions. [2024-10-24 11:15:21,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-10-24 11:15:21,068 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:15:21,069 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:15:21,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 11:15:21,069 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:15:21,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:15:21,069 INFO L85 PathProgramCache]: Analyzing trace with hash 1997485593, now seen corresponding path program 1 times [2024-10-24 11:15:21,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:15:21,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968344527] [2024-10-24 11:15:21,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:15:21,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:15:21,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:22,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:15:22,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:22,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:15:22,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:22,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:15:22,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:22,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:15:22,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:22,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:15:22,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:22,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:15:22,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:22,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:15:22,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:22,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:15:22,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:22,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:15:22,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:22,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:15:22,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:22,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:15:22,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:22,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:15:22,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:22,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:15:22,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:22,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:15:22,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:22,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:15:22,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:22,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:15:22,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:22,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:15:22,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:22,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:15:22,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:22,152 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:15:22,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:15:22,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968344527] [2024-10-24 11:15:22,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968344527] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:15:22,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:15:22,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-10-24 11:15:22,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091968690] [2024-10-24 11:15:22,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:15:22,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-24 11:15:22,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:15:22,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-24 11:15:22,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2024-10-24 11:15:22,155 INFO L87 Difference]: Start difference. First operand 356 states and 497 transitions. Second operand has 15 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 15 states have internal predecessors, (47), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 4 states have call successors, (18) [2024-10-24 11:15:23,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:15:23,820 INFO L93 Difference]: Finished difference Result 811 states and 1122 transitions. [2024-10-24 11:15:23,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 11:15:23,820 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 15 states have internal predecessors, (47), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 4 states have call successors, (18) Word has length 134 [2024-10-24 11:15:23,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:15:23,822 INFO L225 Difference]: With dead ends: 811 [2024-10-24 11:15:23,822 INFO L226 Difference]: Without dead ends: 456 [2024-10-24 11:15:23,823 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=84, Invalid=378, Unknown=0, NotChecked=0, Total=462 [2024-10-24 11:15:23,824 INFO L432 NwaCegarLoop]: 149 mSDtfsCounter, 286 mSDsluCounter, 1174 mSDsCounter, 0 mSdLazyCounter, 1139 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 1323 SdHoareTripleChecker+Invalid, 1204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 1139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-24 11:15:23,824 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [289 Valid, 1323 Invalid, 1204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 1139 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-24 11:15:23,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2024-10-24 11:15:23,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 310. [2024-10-24 11:15:23,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 257 states have (on average 1.2957198443579767) internal successors, (333), 258 states have internal predecessors, (333), 48 states have call successors, (48), 4 states have call predecessors, (48), 4 states have return successors, (48), 47 states have call predecessors, (48), 48 states have call successors, (48) [2024-10-24 11:15:23,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 429 transitions. [2024-10-24 11:15:23,849 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 429 transitions. Word has length 134 [2024-10-24 11:15:23,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:15:23,850 INFO L471 AbstractCegarLoop]: Abstraction has 310 states and 429 transitions. [2024-10-24 11:15:23,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 15 states have internal predecessors, (47), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 4 states have call successors, (18) [2024-10-24 11:15:23,850 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 429 transitions. [2024-10-24 11:15:23,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-10-24 11:15:23,851 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:15:23,851 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:15:23,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 11:15:23,852 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:15:23,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:15:23,852 INFO L85 PathProgramCache]: Analyzing trace with hash 1505843025, now seen corresponding path program 1 times [2024-10-24 11:15:23,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:15:23,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84614308] [2024-10-24 11:15:23,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:15:23,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:15:23,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:28,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:15:28,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:28,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:15:28,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:28,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:15:28,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:28,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:15:28,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:28,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:15:28,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:28,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:15:28,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:28,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:15:28,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:28,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:15:28,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:28,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:15:28,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:28,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:15:28,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:28,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:15:28,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:28,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:15:28,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:28,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:15:28,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:28,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:15:28,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:28,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:15:28,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:28,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:15:28,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:28,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:15:28,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:28,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:15:28,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:15:28,732 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:15:28,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:15:28,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84614308] [2024-10-24 11:15:28,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84614308] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:15:28,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:15:28,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-10-24 11:15:28,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364103459] [2024-10-24 11:15:28,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:15:28,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-24 11:15:28,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:15:28,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-24 11:15:28,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2024-10-24 11:15:28,734 INFO L87 Difference]: Start difference. First operand 310 states and 429 transitions. Second operand has 15 states, 12 states have (on average 4.0) internal successors, (48), 15 states have internal predecessors, (48), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 4 states have call successors, (18) [2024-10-24 11:15:54,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:15:54,999 INFO L93 Difference]: Finished difference Result 672 states and 925 transitions. [2024-10-24 11:15:55,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 11:15:55,000 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 12 states have (on average 4.0) internal successors, (48), 15 states have internal predecessors, (48), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 4 states have call successors, (18) Word has length 135 [2024-10-24 11:15:55,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:15:55,003 INFO L225 Difference]: With dead ends: 672 [2024-10-24 11:15:55,003 INFO L226 Difference]: Without dead ends: 504 [2024-10-24 11:15:55,004 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 24.5s TimeCoverageRelationStatistics Valid=82, Invalid=419, Unknown=5, NotChecked=0, Total=506 [2024-10-24 11:15:55,007 INFO L432 NwaCegarLoop]: 275 mSDtfsCounter, 270 mSDsluCounter, 1988 mSDsCounter, 0 mSdLazyCounter, 1666 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 2263 SdHoareTripleChecker+Invalid, 1739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 1666 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-10-24 11:15:55,007 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [273 Valid, 2263 Invalid, 1739 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 1666 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2024-10-24 11:15:55,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2024-10-24 11:15:55,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 319. [2024-10-24 11:15:55,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 266 states have (on average 1.2932330827067668) internal successors, (344), 267 states have internal predecessors, (344), 48 states have call successors, (48), 4 states have call predecessors, (48), 4 states have return successors, (48), 47 states have call predecessors, (48), 48 states have call successors, (48) [2024-10-24 11:15:55,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 440 transitions. [2024-10-24 11:15:55,040 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 440 transitions. Word has length 135 [2024-10-24 11:15:55,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:15:55,041 INFO L471 AbstractCegarLoop]: Abstraction has 319 states and 440 transitions. [2024-10-24 11:15:55,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 12 states have (on average 4.0) internal successors, (48), 15 states have internal predecessors, (48), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 4 states have call successors, (18) [2024-10-24 11:15:55,041 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 440 transitions. [2024-10-24 11:15:55,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-10-24 11:15:55,043 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:15:55,043 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:15:55,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 11:15:55,043 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:15:55,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:15:55,044 INFO L85 PathProgramCache]: Analyzing trace with hash -753760193, now seen corresponding path program 1 times [2024-10-24 11:15:55,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:15:55,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411648849] [2024-10-24 11:15:55,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:15:55,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:15:55,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:01,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:16:01,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:01,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:16:01,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:01,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:16:01,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:01,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:16:01,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:01,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:16:01,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:01,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:16:01,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:01,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:16:01,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:01,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:16:01,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:01,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:16:01,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:01,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:16:01,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:01,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:16:01,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:01,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:16:01,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:01,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:16:01,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:01,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:16:01,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:01,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:16:01,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:01,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:16:01,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:01,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:16:01,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:01,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:16:01,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:01,191 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:16:01,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:16:01,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411648849] [2024-10-24 11:16:01,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411648849] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:16:01,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:16:01,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-10-24 11:16:01,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6122076] [2024-10-24 11:16:01,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:16:01,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-24 11:16:01,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:16:01,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-24 11:16:01,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2024-10-24 11:16:01,196 INFO L87 Difference]: Start difference. First operand 319 states and 440 transitions. Second operand has 17 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 17 states have internal predecessors, (48), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 4 states have call successors, (18) [2024-10-24 11:16:05,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:16:05,471 INFO L93 Difference]: Finished difference Result 796 states and 1097 transitions. [2024-10-24 11:16:05,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-24 11:16:05,474 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 17 states have internal predecessors, (48), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 4 states have call successors, (18) Word has length 135 [2024-10-24 11:16:05,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:16:05,477 INFO L225 Difference]: With dead ends: 796 [2024-10-24 11:16:05,477 INFO L226 Difference]: Without dead ends: 621 [2024-10-24 11:16:05,478 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=113, Invalid=589, Unknown=0, NotChecked=0, Total=702 [2024-10-24 11:16:05,479 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 318 mSDsluCounter, 1838 mSDsCounter, 0 mSdLazyCounter, 1594 mSolverCounterSat, 139 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 322 SdHoareTripleChecker+Valid, 2009 SdHoareTripleChecker+Invalid, 1733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 139 IncrementalHoareTripleChecker+Valid, 1594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-10-24 11:16:05,479 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [322 Valid, 2009 Invalid, 1733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [139 Valid, 1594 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-10-24 11:16:05,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 621 states. [2024-10-24 11:16:05,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 621 to 343. [2024-10-24 11:16:05,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 290 states have (on average 1.306896551724138) internal successors, (379), 291 states have internal predecessors, (379), 48 states have call successors, (48), 4 states have call predecessors, (48), 4 states have return successors, (48), 47 states have call predecessors, (48), 48 states have call successors, (48) [2024-10-24 11:16:05,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 475 transitions. [2024-10-24 11:16:05,529 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 475 transitions. Word has length 135 [2024-10-24 11:16:05,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:16:05,529 INFO L471 AbstractCegarLoop]: Abstraction has 343 states and 475 transitions. [2024-10-24 11:16:05,529 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 17 states have internal predecessors, (48), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 4 states have call successors, (18) [2024-10-24 11:16:05,530 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 475 transitions. [2024-10-24 11:16:05,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-10-24 11:16:05,530 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:16:05,531 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:16:05,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 11:16:05,531 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:16:05,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:16:05,531 INFO L85 PathProgramCache]: Analyzing trace with hash 2091456592, now seen corresponding path program 1 times [2024-10-24 11:16:05,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:16:05,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103285380] [2024-10-24 11:16:05,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:16:05,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:16:05,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:06,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:16:06,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:06,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:16:06,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:06,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:16:06,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:06,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:16:06,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:06,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:16:06,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:06,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:16:06,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:06,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:16:06,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:06,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:16:06,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:06,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:16:06,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:06,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:16:06,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:06,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:16:06,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:06,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:16:06,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:06,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:16:06,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:06,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:16:06,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:06,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:16:06,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:06,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:16:06,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:06,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:16:06,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:06,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:16:06,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:06,112 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:16:06,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:16:06,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103285380] [2024-10-24 11:16:06,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103285380] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:16:06,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:16:06,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 11:16:06,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130364028] [2024-10-24 11:16:06,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:16:06,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 11:16:06,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:16:06,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 11:16:06,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-24 11:16:06,114 INFO L87 Difference]: Start difference. First operand 343 states and 475 transitions. Second operand has 8 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-10-24 11:16:06,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:16:06,902 INFO L93 Difference]: Finished difference Result 1087 states and 1496 transitions. [2024-10-24 11:16:06,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 11:16:06,903 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 136 [2024-10-24 11:16:06,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:16:06,905 INFO L225 Difference]: With dead ends: 1087 [2024-10-24 11:16:06,905 INFO L226 Difference]: Without dead ends: 745 [2024-10-24 11:16:06,906 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-10-24 11:16:06,907 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 230 mSDsluCounter, 379 mSDsCounter, 0 mSdLazyCounter, 419 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 11:16:06,907 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 463 Invalid, 442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 419 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 11:16:06,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 745 states. [2024-10-24 11:16:06,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 745 to 651. [2024-10-24 11:16:06,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 651 states, 539 states have (on average 1.2894248608534322) internal successors, (695), 544 states have internal predecessors, (695), 102 states have call successors, (102), 9 states have call predecessors, (102), 9 states have return successors, (102), 97 states have call predecessors, (102), 102 states have call successors, (102) [2024-10-24 11:16:06,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 651 states to 651 states and 899 transitions. [2024-10-24 11:16:06,991 INFO L78 Accepts]: Start accepts. Automaton has 651 states and 899 transitions. Word has length 136 [2024-10-24 11:16:06,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:16:06,991 INFO L471 AbstractCegarLoop]: Abstraction has 651 states and 899 transitions. [2024-10-24 11:16:06,991 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-10-24 11:16:06,991 INFO L276 IsEmpty]: Start isEmpty. Operand 651 states and 899 transitions. [2024-10-24 11:16:06,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-10-24 11:16:06,992 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:16:06,993 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:16:06,993 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 11:16:06,993 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:16:06,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:16:06,993 INFO L85 PathProgramCache]: Analyzing trace with hash -1948438351, now seen corresponding path program 1 times [2024-10-24 11:16:06,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:16:06,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434895135] [2024-10-24 11:16:06,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:16:06,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:16:07,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:07,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:16:07,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:07,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:16:07,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:07,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:16:07,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:07,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:16:07,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:07,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:16:07,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:07,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:16:07,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:07,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:16:07,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:07,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:16:07,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:07,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:16:07,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:07,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:16:07,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:07,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:16:07,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:07,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:16:07,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:07,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:16:07,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:07,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:16:07,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:07,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:16:07,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:07,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:16:07,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:07,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:16:07,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:07,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:16:07,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:07,325 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:16:07,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:16:07,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434895135] [2024-10-24 11:16:07,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434895135] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:16:07,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:16:07,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 11:16:07,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368710009] [2024-10-24 11:16:07,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:16:07,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 11:16:07,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:16:07,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 11:16:07,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 11:16:07,326 INFO L87 Difference]: Start difference. First operand 651 states and 899 transitions. Second operand has 7 states, 6 states have (on average 8.166666666666666) internal successors, (49), 7 states have internal predecessors, (49), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-10-24 11:16:07,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:16:07,701 INFO L93 Difference]: Finished difference Result 1113 states and 1515 transitions. [2024-10-24 11:16:07,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 11:16:07,701 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.166666666666666) internal successors, (49), 7 states have internal predecessors, (49), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 136 [2024-10-24 11:16:07,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:16:07,707 INFO L225 Difference]: With dead ends: 1113 [2024-10-24 11:16:07,707 INFO L226 Difference]: Without dead ends: 1111 [2024-10-24 11:16:07,708 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-10-24 11:16:07,708 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 63 mSDsluCounter, 634 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 779 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 11:16:07,708 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 779 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 11:16:07,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1111 states. [2024-10-24 11:16:07,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1111 to 1104. [2024-10-24 11:16:07,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1104 states, 910 states have (on average 1.2615384615384615) internal successors, (1148), 923 states have internal predecessors, (1148), 176 states have call successors, (176), 17 states have call predecessors, (176), 17 states have return successors, (176), 163 states have call predecessors, (176), 176 states have call successors, (176) [2024-10-24 11:16:07,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1104 states to 1104 states and 1500 transitions. [2024-10-24 11:16:07,858 INFO L78 Accepts]: Start accepts. Automaton has 1104 states and 1500 transitions. Word has length 136 [2024-10-24 11:16:07,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:16:07,858 INFO L471 AbstractCegarLoop]: Abstraction has 1104 states and 1500 transitions. [2024-10-24 11:16:07,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.166666666666666) internal successors, (49), 7 states have internal predecessors, (49), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-10-24 11:16:07,858 INFO L276 IsEmpty]: Start isEmpty. Operand 1104 states and 1500 transitions. [2024-10-24 11:16:07,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-10-24 11:16:07,859 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:16:07,859 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:16:07,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 11:16:07,860 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:16:07,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:16:07,860 INFO L85 PathProgramCache]: Analyzing trace with hash 1532502411, now seen corresponding path program 1 times [2024-10-24 11:16:07,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:16:07,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362873400] [2024-10-24 11:16:07,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:16:07,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:16:07,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:09,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:16:09,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:09,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:16:09,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:09,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:16:09,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:09,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:16:09,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:09,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:16:09,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:09,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:16:09,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:09,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:16:09,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:09,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:16:09,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:09,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:16:09,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:09,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:16:09,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:09,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:16:09,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:09,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:16:09,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:09,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:16:09,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:09,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:16:09,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:09,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:16:09,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:09,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:16:09,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:09,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:16:09,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:09,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:16:09,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:09,218 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:16:09,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:16:09,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362873400] [2024-10-24 11:16:09,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362873400] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:16:09,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:16:09,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-10-24 11:16:09,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749826707] [2024-10-24 11:16:09,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:16:09,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-24 11:16:09,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:16:09,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-24 11:16:09,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2024-10-24 11:16:09,220 INFO L87 Difference]: Start difference. First operand 1104 states and 1500 transitions. Second operand has 19 states, 16 states have (on average 3.0625) internal successors, (49), 19 states have internal predecessors, (49), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 4 states have call successors, (18) [2024-10-24 11:16:12,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:16:12,366 INFO L93 Difference]: Finished difference Result 2422 states and 3277 transitions. [2024-10-24 11:16:12,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-24 11:16:12,367 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 16 states have (on average 3.0625) internal successors, (49), 19 states have internal predecessors, (49), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 4 states have call successors, (18) Word has length 136 [2024-10-24 11:16:12,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:16:12,371 INFO L225 Difference]: With dead ends: 2422 [2024-10-24 11:16:12,372 INFO L226 Difference]: Without dead ends: 1319 [2024-10-24 11:16:12,375 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=119, Invalid=637, Unknown=0, NotChecked=0, Total=756 [2024-10-24 11:16:12,375 INFO L432 NwaCegarLoop]: 193 mSDtfsCounter, 331 mSDsluCounter, 1748 mSDsCounter, 0 mSdLazyCounter, 2008 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 1941 SdHoareTripleChecker+Invalid, 2083 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 2008 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-10-24 11:16:12,375 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [334 Valid, 1941 Invalid, 2083 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 2008 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-10-24 11:16:12,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1319 states. [2024-10-24 11:16:12,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1319 to 1149. [2024-10-24 11:16:12,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1149 states, 938 states have (on average 1.2537313432835822) internal successors, (1176), 952 states have internal predecessors, (1176), 190 states have call successors, (190), 20 states have call predecessors, (190), 20 states have return successors, (190), 176 states have call predecessors, (190), 190 states have call successors, (190) [2024-10-24 11:16:12,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1149 states to 1149 states and 1556 transitions. [2024-10-24 11:16:12,575 INFO L78 Accepts]: Start accepts. Automaton has 1149 states and 1556 transitions. Word has length 136 [2024-10-24 11:16:12,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:16:12,576 INFO L471 AbstractCegarLoop]: Abstraction has 1149 states and 1556 transitions. [2024-10-24 11:16:12,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 16 states have (on average 3.0625) internal successors, (49), 19 states have internal predecessors, (49), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 4 states have call successors, (18) [2024-10-24 11:16:12,576 INFO L276 IsEmpty]: Start isEmpty. Operand 1149 states and 1556 transitions. [2024-10-24 11:16:12,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-10-24 11:16:12,577 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:16:12,577 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:16:12,577 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 11:16:12,577 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:16:12,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:16:12,577 INFO L85 PathProgramCache]: Analyzing trace with hash -1099290559, now seen corresponding path program 1 times [2024-10-24 11:16:12,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:16:12,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705093841] [2024-10-24 11:16:12,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:16:12,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:16:12,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:13,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:16:13,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:13,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:16:13,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:13,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:16:13,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:13,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:16:13,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:13,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:16:13,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:13,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:16:13,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:13,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:16:13,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:13,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:16:13,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:13,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:16:13,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:13,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:16:13,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:13,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:16:13,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:13,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:16:13,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:13,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:16:13,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:13,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:16:13,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:13,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:16:13,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:13,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:16:13,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:13,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:16:13,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:13,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:16:13,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:13,461 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:16:13,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:16:13,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705093841] [2024-10-24 11:16:13,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705093841] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:16:13,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:16:13,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-10-24 11:16:13,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890709272] [2024-10-24 11:16:13,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:16:13,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-24 11:16:13,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:16:13,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-24 11:16:13,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2024-10-24 11:16:13,463 INFO L87 Difference]: Start difference. First operand 1149 states and 1556 transitions. Second operand has 15 states, 12 states have (on average 4.083333333333333) internal successors, (49), 15 states have internal predecessors, (49), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 4 states have call successors, (18) [2024-10-24 11:16:14,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:16:14,974 INFO L93 Difference]: Finished difference Result 2488 states and 3367 transitions. [2024-10-24 11:16:14,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-24 11:16:14,975 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 12 states have (on average 4.083333333333333) internal successors, (49), 15 states have internal predecessors, (49), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 4 states have call successors, (18) Word has length 136 [2024-10-24 11:16:14,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:16:14,982 INFO L225 Difference]: With dead ends: 2488 [2024-10-24 11:16:14,982 INFO L226 Difference]: Without dead ends: 1360 [2024-10-24 11:16:14,984 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=94, Invalid=412, Unknown=0, NotChecked=0, Total=506 [2024-10-24 11:16:14,985 INFO L432 NwaCegarLoop]: 143 mSDtfsCounter, 354 mSDsluCounter, 954 mSDsCounter, 0 mSdLazyCounter, 964 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 1097 SdHoareTripleChecker+Invalid, 991 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 964 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-24 11:16:14,985 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [357 Valid, 1097 Invalid, 991 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 964 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-24 11:16:14,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1360 states. [2024-10-24 11:16:15,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1360 to 1140. [2024-10-24 11:16:15,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1140 states, 929 states have (on average 1.2508073196986007) internal successors, (1162), 943 states have internal predecessors, (1162), 190 states have call successors, (190), 20 states have call predecessors, (190), 20 states have return successors, (190), 176 states have call predecessors, (190), 190 states have call successors, (190) [2024-10-24 11:16:15,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1140 states to 1140 states and 1542 transitions. [2024-10-24 11:16:15,187 INFO L78 Accepts]: Start accepts. Automaton has 1140 states and 1542 transitions. Word has length 136 [2024-10-24 11:16:15,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:16:15,188 INFO L471 AbstractCegarLoop]: Abstraction has 1140 states and 1542 transitions. [2024-10-24 11:16:15,188 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 12 states have (on average 4.083333333333333) internal successors, (49), 15 states have internal predecessors, (49), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 4 states have call successors, (18) [2024-10-24 11:16:15,188 INFO L276 IsEmpty]: Start isEmpty. Operand 1140 states and 1542 transitions. [2024-10-24 11:16:15,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-10-24 11:16:15,189 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:16:15,190 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:16:15,190 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 11:16:15,190 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:16:15,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:16:15,190 INFO L85 PathProgramCache]: Analyzing trace with hash 566719730, now seen corresponding path program 1 times [2024-10-24 11:16:15,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:16:15,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632221289] [2024-10-24 11:16:15,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:16:15,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:16:15,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:16,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:16:16,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:16,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:16:16,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:16,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:16:16,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:16,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:16:16,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:16,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:16:16,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:16,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:16:16,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:16,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:16:16,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:16,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:16:16,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:16,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:16:16,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:16,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:16:16,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:16,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:16:16,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:16,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:16:16,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:16,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:16:16,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:16,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:16:16,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:16,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:16:16,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:16,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:16:16,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:16,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:16:16,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:16,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:16:16,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:16,064 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:16:16,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:16:16,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632221289] [2024-10-24 11:16:16,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632221289] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:16:16,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:16:16,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-10-24 11:16:16,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277446835] [2024-10-24 11:16:16,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:16:16,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-24 11:16:16,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:16:16,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-24 11:16:16,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=237, Unknown=0, NotChecked=0, Total=272 [2024-10-24 11:16:16,067 INFO L87 Difference]: Start difference. First operand 1140 states and 1542 transitions. Second operand has 17 states, 15 states have (on average 3.2666666666666666) internal successors, (49), 17 states have internal predecessors, (49), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) [2024-10-24 11:16:17,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:16:17,926 INFO L93 Difference]: Finished difference Result 2669 states and 3602 transitions. [2024-10-24 11:16:17,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-24 11:16:17,927 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 3.2666666666666666) internal successors, (49), 17 states have internal predecessors, (49), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) Word has length 136 [2024-10-24 11:16:17,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:16:17,932 INFO L225 Difference]: With dead ends: 2669 [2024-10-24 11:16:17,932 INFO L226 Difference]: Without dead ends: 1550 [2024-10-24 11:16:17,934 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=81, Invalid=569, Unknown=0, NotChecked=0, Total=650 [2024-10-24 11:16:17,935 INFO L432 NwaCegarLoop]: 189 mSDtfsCounter, 199 mSDsluCounter, 2023 mSDsCounter, 0 mSdLazyCounter, 1174 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 2212 SdHoareTripleChecker+Invalid, 1177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-24 11:16:17,935 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 2212 Invalid, 1177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1174 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-24 11:16:17,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1550 states. [2024-10-24 11:16:18,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1550 to 1303. [2024-10-24 11:16:18,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1303 states, 1062 states have (on average 1.2485875706214689) internal successors, (1326), 1078 states have internal predecessors, (1326), 216 states have call successors, (216), 24 states have call predecessors, (216), 24 states have return successors, (216), 200 states have call predecessors, (216), 216 states have call successors, (216) [2024-10-24 11:16:18,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1303 states to 1303 states and 1758 transitions. [2024-10-24 11:16:18,177 INFO L78 Accepts]: Start accepts. Automaton has 1303 states and 1758 transitions. Word has length 136 [2024-10-24 11:16:18,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:16:18,178 INFO L471 AbstractCegarLoop]: Abstraction has 1303 states and 1758 transitions. [2024-10-24 11:16:18,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 3.2666666666666666) internal successors, (49), 17 states have internal predecessors, (49), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) [2024-10-24 11:16:18,178 INFO L276 IsEmpty]: Start isEmpty. Operand 1303 states and 1758 transitions. [2024-10-24 11:16:18,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-10-24 11:16:18,182 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:16:18,182 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:16:18,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 11:16:18,183 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:16:18,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:16:18,183 INFO L85 PathProgramCache]: Analyzing trace with hash -366325301, now seen corresponding path program 1 times [2024-10-24 11:16:18,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:16:18,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477230882] [2024-10-24 11:16:18,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:16:18,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:16:18,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:18,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:16:18,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:18,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:16:18,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:18,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:16:18,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:18,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:16:18,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:18,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:16:18,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:18,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:16:18,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:18,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:16:18,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:18,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:16:18,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:18,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:16:18,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:18,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:16:18,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:18,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:16:18,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:18,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:16:18,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:18,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:16:18,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:18,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:16:18,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:18,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:16:18,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:18,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:16:18,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:18,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:16:18,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:18,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:16:18,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:18,866 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:16:18,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:16:18,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477230882] [2024-10-24 11:16:18,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477230882] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:16:18,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:16:18,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-24 11:16:18,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713505010] [2024-10-24 11:16:18,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:16:18,867 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 11:16:18,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:16:18,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 11:16:18,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-10-24 11:16:18,868 INFO L87 Difference]: Start difference. First operand 1303 states and 1758 transitions. Second operand has 12 states, 9 states have (on average 5.444444444444445) internal successors, (49), 12 states have internal predecessors, (49), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 4 states have call successors, (18) [2024-10-24 11:16:20,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:16:20,081 INFO L93 Difference]: Finished difference Result 2600 states and 3505 transitions. [2024-10-24 11:16:20,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-24 11:16:20,082 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 5.444444444444445) internal successors, (49), 12 states have internal predecessors, (49), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 4 states have call successors, (18) Word has length 136 [2024-10-24 11:16:20,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:16:20,087 INFO L225 Difference]: With dead ends: 2600 [2024-10-24 11:16:20,087 INFO L226 Difference]: Without dead ends: 1318 [2024-10-24 11:16:20,090 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2024-10-24 11:16:20,090 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 132 mSDsluCounter, 1031 mSDsCounter, 0 mSdLazyCounter, 778 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 1170 SdHoareTripleChecker+Invalid, 804 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 778 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-24 11:16:20,090 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 1170 Invalid, 804 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 778 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-24 11:16:20,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1318 states. [2024-10-24 11:16:20,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1318 to 1276. [2024-10-24 11:16:20,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1276 states, 1044 states have (on average 1.2452107279693487) internal successors, (1300), 1059 states have internal predecessors, (1300), 208 states have call successors, (208), 23 states have call predecessors, (208), 23 states have return successors, (208), 193 states have call predecessors, (208), 208 states have call successors, (208) [2024-10-24 11:16:20,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1276 states to 1276 states and 1716 transitions. [2024-10-24 11:16:20,324 INFO L78 Accepts]: Start accepts. Automaton has 1276 states and 1716 transitions. Word has length 136 [2024-10-24 11:16:20,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:16:20,324 INFO L471 AbstractCegarLoop]: Abstraction has 1276 states and 1716 transitions. [2024-10-24 11:16:20,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 5.444444444444445) internal successors, (49), 12 states have internal predecessors, (49), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 4 states have call successors, (18) [2024-10-24 11:16:20,325 INFO L276 IsEmpty]: Start isEmpty. Operand 1276 states and 1716 transitions. [2024-10-24 11:16:20,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-10-24 11:16:20,326 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:16:20,326 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:16:20,326 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-24 11:16:20,326 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:16:20,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:16:20,327 INFO L85 PathProgramCache]: Analyzing trace with hash 2095458696, now seen corresponding path program 1 times [2024-10-24 11:16:20,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:16:20,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498576970] [2024-10-24 11:16:20,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:16:20,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:16:20,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:20,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:16:20,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:20,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:16:20,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:20,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:16:20,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:20,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:16:20,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:20,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:16:20,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:20,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:16:20,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:20,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:16:20,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:20,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:16:20,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:20,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:16:20,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:20,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:16:20,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:20,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:16:20,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:20,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:16:20,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:20,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:16:20,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:20,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:16:20,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:20,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:16:20,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:20,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:16:20,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:20,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:16:20,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:20,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:16:20,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:20,650 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:16:20,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:16:20,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498576970] [2024-10-24 11:16:20,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498576970] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:16:20,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:16:20,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 11:16:20,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133768222] [2024-10-24 11:16:20,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:16:20,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 11:16:20,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:16:20,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 11:16:20,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 11:16:20,652 INFO L87 Difference]: Start difference. First operand 1276 states and 1716 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:16:21,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:16:21,068 INFO L93 Difference]: Finished difference Result 2630 states and 3546 transitions. [2024-10-24 11:16:21,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 11:16:21,069 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 137 [2024-10-24 11:16:21,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:16:21,075 INFO L225 Difference]: With dead ends: 2630 [2024-10-24 11:16:21,075 INFO L226 Difference]: Without dead ends: 1806 [2024-10-24 11:16:21,077 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-10-24 11:16:21,077 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 72 mSDsluCounter, 768 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 939 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 11:16:21,078 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 939 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 11:16:21,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1806 states. [2024-10-24 11:16:21,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1806 to 1622. [2024-10-24 11:16:21,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1622 states, 1354 states have (on average 1.257016248153619) internal successors, (1702), 1373 states have internal predecessors, (1702), 240 states have call successors, (240), 27 states have call predecessors, (240), 27 states have return successors, (240), 221 states have call predecessors, (240), 240 states have call successors, (240) [2024-10-24 11:16:21,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1622 states to 1622 states and 2182 transitions. [2024-10-24 11:16:21,327 INFO L78 Accepts]: Start accepts. Automaton has 1622 states and 2182 transitions. Word has length 137 [2024-10-24 11:16:21,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:16:21,328 INFO L471 AbstractCegarLoop]: Abstraction has 1622 states and 2182 transitions. [2024-10-24 11:16:21,328 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:16:21,328 INFO L276 IsEmpty]: Start isEmpty. Operand 1622 states and 2182 transitions. [2024-10-24 11:16:21,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-10-24 11:16:21,329 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:16:21,329 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:16:21,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-24 11:16:21,330 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:16:21,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:16:21,330 INFO L85 PathProgramCache]: Analyzing trace with hash -1975593576, now seen corresponding path program 1 times [2024-10-24 11:16:21,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:16:21,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997703576] [2024-10-24 11:16:21,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:16:21,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:16:21,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:22,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:16:22,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:22,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:16:22,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:22,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:16:22,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:22,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:16:22,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:22,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:16:22,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:22,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:16:22,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:22,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:16:22,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:22,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:16:22,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:22,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:16:22,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:22,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:16:22,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:22,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:16:22,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:22,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:16:22,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:22,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:16:22,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:22,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:16:22,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:22,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:16:22,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:22,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:16:22,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:22,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:16:22,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:22,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:16:22,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:22,249 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:16:22,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:16:22,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997703576] [2024-10-24 11:16:22,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997703576] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:16:22,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:16:22,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-10-24 11:16:22,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611588471] [2024-10-24 11:16:22,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:16:22,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-24 11:16:22,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:16:22,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-24 11:16:22,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=209, Unknown=0, NotChecked=0, Total=240 [2024-10-24 11:16:22,251 INFO L87 Difference]: Start difference. First operand 1622 states and 2182 transitions. Second operand has 16 states, 14 states have (on average 3.5714285714285716) internal successors, (50), 16 states have internal predecessors, (50), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) [2024-10-24 11:16:23,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:16:23,741 INFO L93 Difference]: Finished difference Result 3259 states and 4378 transitions. [2024-10-24 11:16:23,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-24 11:16:23,749 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 3.5714285714285716) internal successors, (50), 16 states have internal predecessors, (50), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) Word has length 137 [2024-10-24 11:16:23,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:16:23,755 INFO L225 Difference]: With dead ends: 3259 [2024-10-24 11:16:23,755 INFO L226 Difference]: Without dead ends: 1638 [2024-10-24 11:16:23,760 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 42 SyntacticMatches, 3 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2024-10-24 11:16:23,761 INFO L432 NwaCegarLoop]: 192 mSDtfsCounter, 97 mSDsluCounter, 1842 mSDsCounter, 0 mSdLazyCounter, 1021 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 2034 SdHoareTripleChecker+Invalid, 1023 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1021 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-24 11:16:23,761 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 2034 Invalid, 1023 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1021 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-24 11:16:23,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1638 states. [2024-10-24 11:16:24,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1638 to 1566. [2024-10-24 11:16:24,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1566 states, 1298 states have (on average 1.2557781201848999) internal successors, (1630), 1317 states have internal predecessors, (1630), 240 states have call successors, (240), 27 states have call predecessors, (240), 27 states have return successors, (240), 221 states have call predecessors, (240), 240 states have call successors, (240) [2024-10-24 11:16:24,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1566 states to 1566 states and 2110 transitions. [2024-10-24 11:16:24,061 INFO L78 Accepts]: Start accepts. Automaton has 1566 states and 2110 transitions. Word has length 137 [2024-10-24 11:16:24,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:16:24,061 INFO L471 AbstractCegarLoop]: Abstraction has 1566 states and 2110 transitions. [2024-10-24 11:16:24,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 3.5714285714285716) internal successors, (50), 16 states have internal predecessors, (50), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) [2024-10-24 11:16:24,062 INFO L276 IsEmpty]: Start isEmpty. Operand 1566 states and 2110 transitions. [2024-10-24 11:16:24,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-10-24 11:16:24,063 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:16:24,063 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:16:24,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-24 11:16:24,063 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:16:24,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:16:24,064 INFO L85 PathProgramCache]: Analyzing trace with hash -2094570077, now seen corresponding path program 1 times [2024-10-24 11:16:24,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:16:24,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296742067] [2024-10-24 11:16:24,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:16:24,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:16:24,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:24,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:16:24,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:24,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:16:24,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:24,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:16:24,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:24,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:16:24,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:24,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:16:24,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:24,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:16:24,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:24,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:16:24,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:24,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:16:24,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:24,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:16:24,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:24,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:16:24,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:24,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:16:24,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:24,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:16:24,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:24,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:16:24,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:24,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:16:24,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:24,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:16:24,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:24,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:16:24,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:24,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:16:24,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:24,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:16:24,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:24,378 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:16:24,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:16:24,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296742067] [2024-10-24 11:16:24,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296742067] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:16:24,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:16:24,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 11:16:24,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391479773] [2024-10-24 11:16:24,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:16:24,379 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 11:16:24,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:16:24,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 11:16:24,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-10-24 11:16:24,380 INFO L87 Difference]: Start difference. First operand 1566 states and 2110 transitions. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:16:25,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:16:25,180 INFO L93 Difference]: Finished difference Result 3325 states and 4468 transitions. [2024-10-24 11:16:25,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 11:16:25,180 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 138 [2024-10-24 11:16:25,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:16:25,188 INFO L225 Difference]: With dead ends: 3325 [2024-10-24 11:16:25,188 INFO L226 Difference]: Without dead ends: 1760 [2024-10-24 11:16:25,191 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-10-24 11:16:25,191 INFO L432 NwaCegarLoop]: 143 mSDtfsCounter, 145 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 634 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-24 11:16:25,192 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 634 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-24 11:16:25,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1760 states. [2024-10-24 11:16:25,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1760 to 1648. [2024-10-24 11:16:25,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1648 states, 1366 states have (on average 1.2489019033674964) internal successors, (1706), 1386 states have internal predecessors, (1706), 252 states have call successors, (252), 29 states have call predecessors, (252), 29 states have return successors, (252), 232 states have call predecessors, (252), 252 states have call successors, (252) [2024-10-24 11:16:25,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1648 states to 1648 states and 2210 transitions. [2024-10-24 11:16:25,602 INFO L78 Accepts]: Start accepts. Automaton has 1648 states and 2210 transitions. Word has length 138 [2024-10-24 11:16:25,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:16:25,602 INFO L471 AbstractCegarLoop]: Abstraction has 1648 states and 2210 transitions. [2024-10-24 11:16:25,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:16:25,603 INFO L276 IsEmpty]: Start isEmpty. Operand 1648 states and 2210 transitions. [2024-10-24 11:16:25,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-10-24 11:16:25,604 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:16:25,604 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:16:25,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-24 11:16:25,605 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:16:25,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:16:25,605 INFO L85 PathProgramCache]: Analyzing trace with hash -949300806, now seen corresponding path program 1 times [2024-10-24 11:16:25,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:16:25,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286609503] [2024-10-24 11:16:25,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:16:25,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:16:25,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:25,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:16:25,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:25,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:16:25,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:25,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:16:25,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:25,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:16:25,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:25,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:16:25,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:25,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:16:25,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:25,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:16:25,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:25,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:16:25,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:25,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:16:25,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:25,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:16:25,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:25,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:16:25,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:25,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:16:25,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:25,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:16:25,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:25,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:16:25,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:25,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:16:25,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:25,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:16:25,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:25,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:16:25,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:25,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:16:25,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:25,791 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:16:25,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:16:25,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286609503] [2024-10-24 11:16:25,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286609503] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:16:25,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:16:25,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 11:16:25,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850329606] [2024-10-24 11:16:25,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:16:25,792 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 11:16:25,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:16:25,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 11:16:25,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 11:16:25,793 INFO L87 Difference]: Start difference. First operand 1648 states and 2210 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:16:26,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:16:26,121 INFO L93 Difference]: Finished difference Result 3549 states and 4750 transitions. [2024-10-24 11:16:26,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 11:16:26,123 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 138 [2024-10-24 11:16:26,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:16:26,131 INFO L225 Difference]: With dead ends: 3549 [2024-10-24 11:16:26,132 INFO L226 Difference]: Without dead ends: 1902 [2024-10-24 11:16:26,135 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-24 11:16:26,137 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 42 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 11:16:26,138 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 597 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 11:16:26,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1902 states. [2024-10-24 11:16:26,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1902 to 1754. [2024-10-24 11:16:26,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1754 states, 1472 states have (on average 1.2452445652173914) internal successors, (1833), 1492 states have internal predecessors, (1833), 252 states have call successors, (252), 29 states have call predecessors, (252), 29 states have return successors, (252), 232 states have call predecessors, (252), 252 states have call successors, (252) [2024-10-24 11:16:26,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1754 states to 1754 states and 2337 transitions. [2024-10-24 11:16:26,464 INFO L78 Accepts]: Start accepts. Automaton has 1754 states and 2337 transitions. Word has length 138 [2024-10-24 11:16:26,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:16:26,464 INFO L471 AbstractCegarLoop]: Abstraction has 1754 states and 2337 transitions. [2024-10-24 11:16:26,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:16:26,464 INFO L276 IsEmpty]: Start isEmpty. Operand 1754 states and 2337 transitions. [2024-10-24 11:16:26,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-10-24 11:16:26,465 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:16:26,465 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:16:26,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-24 11:16:26,466 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:16:26,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:16:26,466 INFO L85 PathProgramCache]: Analyzing trace with hash -1575586829, now seen corresponding path program 1 times [2024-10-24 11:16:26,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:16:26,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976502035] [2024-10-24 11:16:26,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:16:26,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:16:26,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:26,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:16:26,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:26,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:16:26,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:26,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:16:26,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:26,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:16:26,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:26,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:16:26,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:26,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:16:26,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:26,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:16:26,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:26,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:16:26,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:26,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:16:26,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:26,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:16:26,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:26,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:16:26,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:26,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:16:26,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:26,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:16:26,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:26,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:16:26,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:26,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:16:26,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:26,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:16:26,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:26,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:16:26,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:26,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:16:26,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:26,893 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:16:26,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:16:26,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976502035] [2024-10-24 11:16:26,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976502035] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:16:26,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:16:26,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 11:16:26,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713786806] [2024-10-24 11:16:26,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:16:26,895 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 11:16:26,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:16:26,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 11:16:26,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-24 11:16:26,896 INFO L87 Difference]: Start difference. First operand 1754 states and 2337 transitions. Second operand has 8 states, 6 states have (on average 8.666666666666666) internal successors, (52), 8 states have internal predecessors, (52), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) [2024-10-24 11:16:27,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:16:27,637 INFO L93 Difference]: Finished difference Result 3552 states and 4721 transitions. [2024-10-24 11:16:27,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 11:16:27,638 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 8.666666666666666) internal successors, (52), 8 states have internal predecessors, (52), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) Word has length 139 [2024-10-24 11:16:27,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:16:27,645 INFO L225 Difference]: With dead ends: 3552 [2024-10-24 11:16:27,645 INFO L226 Difference]: Without dead ends: 1799 [2024-10-24 11:16:27,647 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-10-24 11:16:27,648 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 142 mSDsluCounter, 549 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 689 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 11:16:27,648 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 689 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 435 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 11:16:27,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1799 states. [2024-10-24 11:16:27,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1799 to 1623. [2024-10-24 11:16:27,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1623 states, 1362 states have (on average 1.251101321585903) internal successors, (1704), 1380 states have internal predecessors, (1704), 232 states have call successors, (232), 28 states have call predecessors, (232), 28 states have return successors, (232), 214 states have call predecessors, (232), 232 states have call successors, (232) [2024-10-24 11:16:27,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1623 states to 1623 states and 2168 transitions. [2024-10-24 11:16:27,888 INFO L78 Accepts]: Start accepts. Automaton has 1623 states and 2168 transitions. Word has length 139 [2024-10-24 11:16:27,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:16:27,888 INFO L471 AbstractCegarLoop]: Abstraction has 1623 states and 2168 transitions. [2024-10-24 11:16:27,888 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 8.666666666666666) internal successors, (52), 8 states have internal predecessors, (52), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) [2024-10-24 11:16:27,888 INFO L276 IsEmpty]: Start isEmpty. Operand 1623 states and 2168 transitions. [2024-10-24 11:16:27,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-10-24 11:16:27,889 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:16:27,890 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:16:27,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-24 11:16:27,890 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:16:27,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:16:27,890 INFO L85 PathProgramCache]: Analyzing trace with hash 415628068, now seen corresponding path program 1 times [2024-10-24 11:16:27,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:16:27,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735527080] [2024-10-24 11:16:27,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:16:27,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:16:27,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:28,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:16:28,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:28,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:16:28,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:28,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:16:28,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:28,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:16:28,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:28,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:16:28,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:28,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:16:28,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:28,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:16:28,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:28,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:16:28,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:28,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:16:28,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:28,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:16:28,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:28,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:16:28,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:28,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:16:28,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:28,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:16:28,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:28,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:16:28,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:28,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:16:28,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:28,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:16:28,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:28,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:16:28,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:28,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:16:28,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:28,019 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:16:28,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:16:28,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735527080] [2024-10-24 11:16:28,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735527080] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:16:28,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:16:28,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 11:16:28,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803845386] [2024-10-24 11:16:28,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:16:28,020 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 11:16:28,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:16:28,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 11:16:28,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 11:16:28,021 INFO L87 Difference]: Start difference. First operand 1623 states and 2168 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:16:28,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:16:28,291 INFO L93 Difference]: Finished difference Result 3364 states and 4473 transitions. [2024-10-24 11:16:28,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 11:16:28,291 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 139 [2024-10-24 11:16:28,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:16:28,297 INFO L225 Difference]: With dead ends: 3364 [2024-10-24 11:16:28,297 INFO L226 Difference]: Without dead ends: 1742 [2024-10-24 11:16:28,299 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 11:16:28,300 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 0 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 698 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 11:16:28,300 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 698 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 11:16:28,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1742 states. [2024-10-24 11:16:28,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1742 to 1653. [2024-10-24 11:16:28,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1653 states, 1392 states have (on average 1.2456896551724137) internal successors, (1734), 1410 states have internal predecessors, (1734), 232 states have call successors, (232), 28 states have call predecessors, (232), 28 states have return successors, (232), 214 states have call predecessors, (232), 232 states have call successors, (232) [2024-10-24 11:16:28,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1653 states to 1653 states and 2198 transitions. [2024-10-24 11:16:28,575 INFO L78 Accepts]: Start accepts. Automaton has 1653 states and 2198 transitions. Word has length 139 [2024-10-24 11:16:28,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:16:28,576 INFO L471 AbstractCegarLoop]: Abstraction has 1653 states and 2198 transitions. [2024-10-24 11:16:28,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:16:28,576 INFO L276 IsEmpty]: Start isEmpty. Operand 1653 states and 2198 transitions. [2024-10-24 11:16:28,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-10-24 11:16:28,578 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:16:28,578 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:16:28,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-24 11:16:28,578 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:16:28,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:16:28,579 INFO L85 PathProgramCache]: Analyzing trace with hash -264430302, now seen corresponding path program 1 times [2024-10-24 11:16:28,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:16:28,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945651395] [2024-10-24 11:16:28,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:16:28,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:16:28,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:28,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:16:28,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:28,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:16:28,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:28,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:16:28,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:28,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:16:28,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:28,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:16:28,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:28,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:16:28,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:28,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:16:28,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:28,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:16:28,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:28,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:16:28,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:28,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:16:28,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:28,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:16:28,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:28,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:16:28,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:28,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:16:28,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:28,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:16:28,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:28,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:16:28,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:28,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:16:28,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:28,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:16:28,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:28,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:16:28,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:28,790 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:16:28,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:16:28,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945651395] [2024-10-24 11:16:28,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945651395] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:16:28,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:16:28,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 11:16:28,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337182842] [2024-10-24 11:16:28,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:16:28,791 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 11:16:28,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:16:28,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 11:16:28,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 11:16:28,792 INFO L87 Difference]: Start difference. First operand 1653 states and 2198 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, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:16:29,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:16:29,153 INFO L93 Difference]: Finished difference Result 2888 states and 3860 transitions. [2024-10-24 11:16:29,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 11:16:29,153 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, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 139 [2024-10-24 11:16:29,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:16:29,160 INFO L225 Difference]: With dead ends: 2888 [2024-10-24 11:16:29,160 INFO L226 Difference]: Without dead ends: 1683 [2024-10-24 11:16:29,162 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-24 11:16:29,163 INFO L432 NwaCegarLoop]: 159 mSDtfsCounter, 38 mSDsluCounter, 419 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 11:16:29,163 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 578 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 11:16:29,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1683 states. [2024-10-24 11:16:29,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1683 to 1609. [2024-10-24 11:16:29,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1609 states, 1348 states have (on average 1.2403560830860534) internal successors, (1672), 1366 states have internal predecessors, (1672), 232 states have call successors, (232), 28 states have call predecessors, (232), 28 states have return successors, (232), 214 states have call predecessors, (232), 232 states have call successors, (232) [2024-10-24 11:16:29,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1609 states to 1609 states and 2136 transitions. [2024-10-24 11:16:29,404 INFO L78 Accepts]: Start accepts. Automaton has 1609 states and 2136 transitions. Word has length 139 [2024-10-24 11:16:29,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:16:29,405 INFO L471 AbstractCegarLoop]: Abstraction has 1609 states and 2136 transitions. [2024-10-24 11:16:29,405 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, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:16:29,405 INFO L276 IsEmpty]: Start isEmpty. Operand 1609 states and 2136 transitions. [2024-10-24 11:16:29,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-10-24 11:16:29,409 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:16:29,410 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:16:29,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-24 11:16:29,410 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:16:29,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:16:29,410 INFO L85 PathProgramCache]: Analyzing trace with hash 1751451867, now seen corresponding path program 1 times [2024-10-24 11:16:29,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:16:29,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315772626] [2024-10-24 11:16:29,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:16:29,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:16:29,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:30,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:16:30,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:30,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:16:30,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:30,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:16:30,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:30,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:16:30,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:30,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:16:30,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:30,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:16:30,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:30,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:16:30,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:30,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:16:30,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:30,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:16:30,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:30,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:16:30,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:30,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:16:30,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:30,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:16:30,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:30,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:16:30,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:30,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:16:30,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:30,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:16:30,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:30,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:16:30,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:30,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:16:30,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:30,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:16:30,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:30,248 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:16:30,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:16:30,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315772626] [2024-10-24 11:16:30,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315772626] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:16:30,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:16:30,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-10-24 11:16:30,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923101007] [2024-10-24 11:16:30,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:16:30,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-24 11:16:30,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:16:30,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-24 11:16:30,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-10-24 11:16:30,250 INFO L87 Difference]: Start difference. First operand 1609 states and 2136 transitions. Second operand has 13 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 13 states have internal predecessors, (52), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) [2024-10-24 11:16:31,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:16:31,655 INFO L93 Difference]: Finished difference Result 3517 states and 4654 transitions. [2024-10-24 11:16:31,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-24 11:16:31,655 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 13 states have internal predecessors, (52), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) Word has length 139 [2024-10-24 11:16:31,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:16:31,662 INFO L225 Difference]: With dead ends: 3517 [2024-10-24 11:16:31,662 INFO L226 Difference]: Without dead ends: 2356 [2024-10-24 11:16:31,664 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2024-10-24 11:16:31,664 INFO L432 NwaCegarLoop]: 134 mSDtfsCounter, 163 mSDsluCounter, 969 mSDsCounter, 0 mSdLazyCounter, 895 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 1103 SdHoareTripleChecker+Invalid, 902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 895 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-24 11:16:31,664 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 1103 Invalid, 902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 895 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-24 11:16:31,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2356 states. [2024-10-24 11:16:31,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2356 to 1649. [2024-10-24 11:16:31,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1649 states, 1372 states have (on average 1.2303206997084548) internal successors, (1688), 1390 states have internal predecessors, (1688), 244 states have call successors, (244), 32 states have call predecessors, (244), 32 states have return successors, (244), 226 states have call predecessors, (244), 244 states have call successors, (244) [2024-10-24 11:16:31,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1649 states to 1649 states and 2176 transitions. [2024-10-24 11:16:31,930 INFO L78 Accepts]: Start accepts. Automaton has 1649 states and 2176 transitions. Word has length 139 [2024-10-24 11:16:31,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:16:31,930 INFO L471 AbstractCegarLoop]: Abstraction has 1649 states and 2176 transitions. [2024-10-24 11:16:31,930 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 13 states have internal predecessors, (52), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) [2024-10-24 11:16:31,930 INFO L276 IsEmpty]: Start isEmpty. Operand 1649 states and 2176 transitions. [2024-10-24 11:16:31,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-10-24 11:16:31,931 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:16:31,931 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:16:31,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-24 11:16:31,932 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:16:31,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:16:31,932 INFO L85 PathProgramCache]: Analyzing trace with hash -573870648, now seen corresponding path program 1 times [2024-10-24 11:16:31,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:16:31,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825833251] [2024-10-24 11:16:31,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:16:31,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:16:31,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:32,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:16:32,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:32,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:16:32,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:32,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:16:32,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:32,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:16:32,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:32,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:16:32,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:32,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:16:32,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:32,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:16:32,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:32,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:16:32,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:32,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:16:32,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:32,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:16:32,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:32,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:16:32,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:32,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:16:32,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:32,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:16:32,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:32,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:16:32,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:32,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:16:32,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:32,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:16:32,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:32,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:16:32,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:32,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:16:32,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:32,244 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:16:32,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:16:32,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825833251] [2024-10-24 11:16:32,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825833251] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:16:32,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:16:32,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 11:16:32,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895813924] [2024-10-24 11:16:32,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:16:32,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 11:16:32,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:16:32,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 11:16:32,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-24 11:16:32,246 INFO L87 Difference]: Start difference. First operand 1649 states and 2176 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:16:32,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:16:32,956 INFO L93 Difference]: Finished difference Result 3291 states and 4333 transitions. [2024-10-24 11:16:32,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 11:16:32,956 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 140 [2024-10-24 11:16:32,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:16:32,962 INFO L225 Difference]: With dead ends: 3291 [2024-10-24 11:16:32,962 INFO L226 Difference]: Without dead ends: 1643 [2024-10-24 11:16:32,965 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 38 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-10-24 11:16:32,965 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 137 mSDsluCounter, 496 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 665 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 11:16:32,965 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 665 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 378 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 11:16:32,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1643 states. [2024-10-24 11:16:33,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1643 to 1567. [2024-10-24 11:16:33,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1567 states, 1306 states have (on average 1.2289433384379786) internal successors, (1605), 1323 states have internal predecessors, (1605), 230 states have call successors, (230), 30 states have call predecessors, (230), 30 states have return successors, (230), 213 states have call predecessors, (230), 230 states have call successors, (230) [2024-10-24 11:16:33,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1567 states to 1567 states and 2065 transitions. [2024-10-24 11:16:33,210 INFO L78 Accepts]: Start accepts. Automaton has 1567 states and 2065 transitions. Word has length 140 [2024-10-24 11:16:33,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:16:33,211 INFO L471 AbstractCegarLoop]: Abstraction has 1567 states and 2065 transitions. [2024-10-24 11:16:33,211 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:16:33,213 INFO L276 IsEmpty]: Start isEmpty. Operand 1567 states and 2065 transitions. [2024-10-24 11:16:33,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-10-24 11:16:33,215 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:16:33,215 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:16:33,215 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-24 11:16:33,215 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:16:33,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:16:33,215 INFO L85 PathProgramCache]: Analyzing trace with hash -1405583148, now seen corresponding path program 1 times [2024-10-24 11:16:33,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:16:33,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75672237] [2024-10-24 11:16:33,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:16:33,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:16:33,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:33,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:16:33,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:33,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:16:33,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:33,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:16:33,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:33,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:16:33,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:33,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:16:33,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:33,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:16:33,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:33,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:16:33,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:33,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:16:33,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:33,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:16:33,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:33,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:16:33,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:33,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:16:33,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:33,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:16:33,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:33,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:16:33,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:33,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:16:33,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:33,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:16:33,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:33,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:16:33,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:33,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:16:33,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:33,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:16:33,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:33,582 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:16:33,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:16:33,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75672237] [2024-10-24 11:16:33,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75672237] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:16:33,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:16:33,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 11:16:33,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990160312] [2024-10-24 11:16:33,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:16:33,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 11:16:33,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:16:33,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 11:16:33,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-24 11:16:33,585 INFO L87 Difference]: Start difference. First operand 1567 states and 2065 transitions. Second operand has 9 states, 8 states have (on average 6.625) internal successors, (53), 9 states have internal predecessors, (53), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-10-24 11:16:34,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:16:34,264 INFO L93 Difference]: Finished difference Result 3314 states and 4377 transitions. [2024-10-24 11:16:34,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 11:16:34,264 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.625) internal successors, (53), 9 states have internal predecessors, (53), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 140 [2024-10-24 11:16:34,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:16:34,271 INFO L225 Difference]: With dead ends: 3314 [2024-10-24 11:16:34,271 INFO L226 Difference]: Without dead ends: 2113 [2024-10-24 11:16:34,273 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2024-10-24 11:16:34,274 INFO L432 NwaCegarLoop]: 180 mSDtfsCounter, 73 mSDsluCounter, 1116 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 1296 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 11:16:34,274 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 1296 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 11:16:34,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2113 states. [2024-10-24 11:16:34,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2113 to 1863. [2024-10-24 11:16:34,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1863 states, 1558 states have (on average 1.2349165596919127) internal successors, (1924), 1579 states have internal predecessors, (1924), 270 states have call successors, (270), 34 states have call predecessors, (270), 34 states have return successors, (270), 249 states have call predecessors, (270), 270 states have call successors, (270) [2024-10-24 11:16:34,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1863 states to 1863 states and 2464 transitions. [2024-10-24 11:16:34,566 INFO L78 Accepts]: Start accepts. Automaton has 1863 states and 2464 transitions. Word has length 140 [2024-10-24 11:16:34,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:16:34,567 INFO L471 AbstractCegarLoop]: Abstraction has 1863 states and 2464 transitions. [2024-10-24 11:16:34,567 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.625) internal successors, (53), 9 states have internal predecessors, (53), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-10-24 11:16:34,567 INFO L276 IsEmpty]: Start isEmpty. Operand 1863 states and 2464 transitions. [2024-10-24 11:16:34,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-10-24 11:16:34,568 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:16:34,568 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:16:34,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-24 11:16:34,568 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:16:34,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:16:34,569 INFO L85 PathProgramCache]: Analyzing trace with hash -1186728430, now seen corresponding path program 1 times [2024-10-24 11:16:34,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:16:34,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612472832] [2024-10-24 11:16:34,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:16:34,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:16:34,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:34,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:16:34,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:34,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:16:34,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:34,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:16:34,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:34,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:16:34,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:34,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:16:34,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:34,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:16:34,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:34,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:16:34,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:34,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:16:34,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:34,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:16:34,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:34,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:16:34,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:34,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:16:34,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:34,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:16:34,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:34,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:16:34,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:34,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:16:34,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:34,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:16:34,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:34,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:16:34,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:34,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:16:34,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:34,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:16:34,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:34,785 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:16:34,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:16:34,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612472832] [2024-10-24 11:16:34,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612472832] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:16:34,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:16:34,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 11:16:34,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699059919] [2024-10-24 11:16:34,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:16:34,787 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 11:16:34,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:16:34,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 11:16:34,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 11:16:34,787 INFO L87 Difference]: Start difference. First operand 1863 states and 2464 transitions. Second operand has 6 states, 5 states have (on average 10.6) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-10-24 11:16:35,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:16:35,181 INFO L93 Difference]: Finished difference Result 3950 states and 5199 transitions. [2024-10-24 11:16:35,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 11:16:35,182 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.6) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 140 [2024-10-24 11:16:35,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:16:35,188 INFO L225 Difference]: With dead ends: 3950 [2024-10-24 11:16:35,188 INFO L226 Difference]: Without dead ends: 2088 [2024-10-24 11:16:35,190 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-24 11:16:35,191 INFO L432 NwaCegarLoop]: 163 mSDtfsCounter, 90 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 11:16:35,191 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 579 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 11:16:35,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2088 states. [2024-10-24 11:16:35,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2088 to 2077. [2024-10-24 11:16:35,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2077 states, 1743 states have (on average 1.227768215720023) internal successors, (2140), 1773 states have internal predecessors, (2140), 288 states have call successors, (288), 45 states have call predecessors, (288), 45 states have return successors, (288), 258 states have call predecessors, (288), 288 states have call successors, (288) [2024-10-24 11:16:35,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2077 states to 2077 states and 2716 transitions. [2024-10-24 11:16:35,523 INFO L78 Accepts]: Start accepts. Automaton has 2077 states and 2716 transitions. Word has length 140 [2024-10-24 11:16:35,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:16:35,524 INFO L471 AbstractCegarLoop]: Abstraction has 2077 states and 2716 transitions. [2024-10-24 11:16:35,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.6) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-10-24 11:16:35,524 INFO L276 IsEmpty]: Start isEmpty. Operand 2077 states and 2716 transitions. [2024-10-24 11:16:35,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-10-24 11:16:35,525 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:16:35,525 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:16:35,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-24 11:16:35,525 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:16:35,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:16:35,525 INFO L85 PathProgramCache]: Analyzing trace with hash 1614187842, now seen corresponding path program 1 times [2024-10-24 11:16:35,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:16:35,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039769677] [2024-10-24 11:16:35,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:16:35,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:16:35,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:35,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:16:35,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:35,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:16:35,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:35,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:16:35,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:35,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:16:35,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:35,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:16:35,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:35,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:16:35,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:35,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:16:35,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:35,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:16:35,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:35,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:16:35,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:35,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:16:35,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:35,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:16:35,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:35,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:16:35,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:35,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:16:35,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:35,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:16:35,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:35,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:16:35,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:35,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:16:35,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:35,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:16:35,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:35,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:16:35,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:35,870 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:16:35,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:16:35,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039769677] [2024-10-24 11:16:35,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039769677] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:16:35,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:16:35,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 11:16:35,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256999991] [2024-10-24 11:16:35,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:16:35,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 11:16:35,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:16:35,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 11:16:35,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 11:16:35,872 INFO L87 Difference]: Start difference. First operand 2077 states and 2716 transitions. Second operand has 7 states, 5 states have (on average 10.6) internal successors, (53), 7 states have internal predecessors, (53), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) [2024-10-24 11:16:36,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:16:36,612 INFO L93 Difference]: Finished difference Result 4397 states and 5750 transitions. [2024-10-24 11:16:36,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 11:16:36,613 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 10.6) internal successors, (53), 7 states have internal predecessors, (53), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) Word has length 140 [2024-10-24 11:16:36,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:16:36,620 INFO L225 Difference]: With dead ends: 4397 [2024-10-24 11:16:36,620 INFO L226 Difference]: Without dead ends: 2329 [2024-10-24 11:16:36,623 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-24 11:16:36,624 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 61 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 11:16:36,624 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 493 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 322 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 11:16:36,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2329 states. [2024-10-24 11:16:37,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2329 to 1612. [2024-10-24 11:16:37,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1612 states, 1336 states have (on average 1.2095808383233533) internal successors, (1616), 1359 states have internal predecessors, (1616), 236 states have call successors, (236), 39 states have call predecessors, (236), 39 states have return successors, (236), 213 states have call predecessors, (236), 236 states have call successors, (236) [2024-10-24 11:16:37,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1612 states to 1612 states and 2088 transitions. [2024-10-24 11:16:37,089 INFO L78 Accepts]: Start accepts. Automaton has 1612 states and 2088 transitions. Word has length 140 [2024-10-24 11:16:37,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:16:37,090 INFO L471 AbstractCegarLoop]: Abstraction has 1612 states and 2088 transitions. [2024-10-24 11:16:37,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 10.6) internal successors, (53), 7 states have internal predecessors, (53), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) [2024-10-24 11:16:37,090 INFO L276 IsEmpty]: Start isEmpty. Operand 1612 states and 2088 transitions. [2024-10-24 11:16:37,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-10-24 11:16:37,092 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:16:37,092 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:16:37,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-10-24 11:16:37,092 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:16:37,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:16:37,093 INFO L85 PathProgramCache]: Analyzing trace with hash 1781342976, now seen corresponding path program 1 times [2024-10-24 11:16:37,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:16:37,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627652673] [2024-10-24 11:16:37,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:16:37,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:16:37,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat