./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-32.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_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 50aaa9c38941e3902867fed1ab11249c92826155dddcdcedd0a40439bce25b5e --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 09:35:16,310 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 09:35:16,373 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-10 09:35:16,376 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 09:35:16,377 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 09:35:16,393 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 09:35:16,393 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 09:35:16,394 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 09:35:16,394 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 09:35:16,395 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 09:35:16,396 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 09:35:16,396 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 09:35:16,397 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 09:35:16,397 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 09:35:16,397 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 09:35:16,397 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 09:35:16,397 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 09:35:16,398 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 09:35:16,398 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 09:35:16,398 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 09:35:16,398 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 09:35:16,401 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 09:35:16,402 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 09:35:16,402 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 09:35:16,402 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 09:35:16,402 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 09:35:16,402 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 09:35:16,402 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 09:35:16,402 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 09:35:16,403 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 09:35:16,403 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 09:35:16,403 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 09:35:16,403 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 09:35:16,404 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 09:35:16,404 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 09:35:16,404 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 09:35:16,404 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 09:35:16,404 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 09:35:16,404 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 09:35:16,404 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 09:35:16,404 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 09:35:16,405 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 09:35:16,406 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 50aaa9c38941e3902867fed1ab11249c92826155dddcdcedd0a40439bce25b5e [2024-11-10 09:35:16,650 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 09:35:16,672 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 09:35:16,676 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 09:35:16,677 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 09:35:16,681 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 09:35:16,683 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-32.i [2024-11-10 09:35:18,033 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 09:35:18,206 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 09:35:18,207 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-32.i [2024-11-10 09:35:18,215 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/007a6072c/9b7b887103a24179a94043ee12d54fcd/FLAG1850f62d9 [2024-11-10 09:35:18,227 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/007a6072c/9b7b887103a24179a94043ee12d54fcd [2024-11-10 09:35:18,230 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 09:35:18,231 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 09:35:18,234 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 09:35:18,234 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 09:35:18,239 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 09:35:18,239 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 09:35:18" (1/1) ... [2024-11-10 09:35:18,240 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@610d7d26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:35:18, skipping insertion in model container [2024-11-10 09:35:18,240 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 09:35:18" (1/1) ... [2024-11-10 09:35:18,268 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 09:35:18,422 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-32.i[916,929] [2024-11-10 09:35:18,488 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 09:35:18,501 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 09:35:18,512 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-32.i[916,929] [2024-11-10 09:35:18,533 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 09:35:18,572 INFO L204 MainTranslator]: Completed translation [2024-11-10 09:35:18,573 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:35:18 WrapperNode [2024-11-10 09:35:18,573 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 09:35:18,574 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 09:35:18,574 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 09:35:18,574 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 09:35:18,579 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:35:18" (1/1) ... [2024-11-10 09:35:18,589 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:35:18" (1/1) ... [2024-11-10 09:35:18,622 INFO L138 Inliner]: procedures = 26, calls = 165, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 465 [2024-11-10 09:35:18,622 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 09:35:18,623 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 09:35:18,623 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 09:35:18,623 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 09:35:18,644 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:35:18" (1/1) ... [2024-11-10 09:35:18,644 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:35:18" (1/1) ... [2024-11-10 09:35:18,648 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:35:18" (1/1) ... [2024-11-10 09:35:18,677 INFO L175 MemorySlicer]: Split 124 memory accesses to 13 slices as follows [2, 7, 18, 20, 8, 8, 12, 12, 8, 6, 7, 10, 6]. 16 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]. The 15 writes are split as follows [0, 1, 1, 1, 1, 2, 1, 1, 1, 1, 3, 1, 1]. [2024-11-10 09:35:18,678 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:35:18" (1/1) ... [2024-11-10 09:35:18,678 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:35:18" (1/1) ... [2024-11-10 09:35:18,691 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:35:18" (1/1) ... [2024-11-10 09:35:18,692 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:35:18" (1/1) ... [2024-11-10 09:35:18,694 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:35:18" (1/1) ... [2024-11-10 09:35:18,696 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:35:18" (1/1) ... [2024-11-10 09:35:18,700 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 09:35:18,701 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 09:35:18,701 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 09:35:18,701 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 09:35:18,702 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:35:18" (1/1) ... [2024-11-10 09:35:18,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 09:35:18,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 09:35:18,739 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-10 09:35:18,741 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-10 09:35:18,783 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 09:35:18,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-10 09:35:18,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-10 09:35:18,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-10 09:35:18,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-10 09:35:18,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-10 09:35:18,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-10 09:35:18,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-10 09:35:18,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-10 09:35:18,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-10 09:35:18,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-10 09:35:18,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-10 09:35:18,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-11-10 09:35:18,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-11-10 09:35:18,787 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-10 09:35:18,787 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-10 09:35:18,787 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-10 09:35:18,787 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-10 09:35:18,787 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-10 09:35:18,787 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-10 09:35:18,788 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-10 09:35:18,788 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-10 09:35:18,788 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-10 09:35:18,788 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-10 09:35:18,788 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-10 09:35:18,789 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-11-10 09:35:18,789 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-11-10 09:35:18,789 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-10 09:35:18,789 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-10 09:35:18,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 09:35:18,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-10 09:35:18,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-10 09:35:18,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-10 09:35:18,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-10 09:35:18,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-10 09:35:18,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-10 09:35:18,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-10 09:35:18,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-10 09:35:18,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-10 09:35:18,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-10 09:35:18,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-10 09:35:18,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-10 09:35:18,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 09:35:18,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 09:35:18,922 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 09:35:18,923 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 09:35:19,269 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L110: havoc property_#t~ite85#1;havoc property_#t~mem84#1;havoc property_#t~mem75#1;havoc property_#t~mem71#1;havoc property_#t~ite74#1;havoc property_#t~mem72#1;havoc property_#t~mem73#1;havoc property_#t~mem76#1;havoc property_#t~ite83#1;havoc property_#t~mem81#1;havoc property_#t~mem77#1;havoc property_#t~ite80#1;havoc property_#t~mem78#1;havoc property_#t~mem79#1;havoc property_#t~mem82#1;havoc property_#t~mem86#1;havoc property_#t~mem87#1;havoc property_#t~mem88#1;havoc property_#t~ite97#1;havoc property_#t~mem89#1;havoc property_#t~ite96#1;havoc property_#t~mem91#1;havoc property_#t~mem90#1;havoc property_#t~mem92#1;havoc property_#t~ite95#1;havoc property_#t~mem94#1;havoc property_#t~mem93#1;havoc property_#t~short98#1;havoc property_#t~mem101#1;havoc property_#t~mem99#1;havoc property_#t~mem100#1;havoc property_#t~ite123#1;havoc property_#t~mem104#1;havoc property_#t~mem103#1;havoc property_#t~mem102#1;havoc property_#t~ite120#1;havoc property_#t~mem105#1;havoc property_#t~ite111#1;havoc property_#t~mem110#1;havoc property_#t~mem109#1;havoc property_#t~mem108#1;havoc property_#t~mem106#1;havoc property_#t~mem107#1;havoc property_#t~mem119#1;havoc property_#t~mem112#1;havoc property_#t~mem113#1;havoc property_#t~mem114#1;havoc property_#t~ite118#1;havoc property_#t~mem115#1;havoc property_#t~mem116#1;havoc property_#t~mem117#1;havoc property_#t~mem122#1;havoc property_#t~mem121#1;havoc property_#t~short124#1; [2024-11-10 09:35:19,310 INFO L? ?]: Removed 107 outVars from TransFormulas that were not future-live. [2024-11-10 09:35:19,310 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 09:35:19,326 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 09:35:19,326 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 09:35:19,327 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 09:35:19 BoogieIcfgContainer [2024-11-10 09:35:19,327 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 09:35:19,329 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 09:35:19,329 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 09:35:19,332 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 09:35:19,332 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 09:35:18" (1/3) ... [2024-11-10 09:35:19,333 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79cd6bfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 09:35:19, skipping insertion in model container [2024-11-10 09:35:19,333 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:35:18" (2/3) ... [2024-11-10 09:35:19,334 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79cd6bfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 09:35:19, skipping insertion in model container [2024-11-10 09:35:19,334 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 09:35:19" (3/3) ... [2024-11-10 09:35:19,335 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-32.i [2024-11-10 09:35:19,351 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 09:35:19,352 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-10 09:35:19,402 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 09:35:19,408 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;@317170fa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 09:35:19,408 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-10 09:35:19,412 INFO L276 IsEmpty]: Start isEmpty. Operand has 102 states, 81 states have (on average 1.3580246913580247) internal successors, (110), 82 states have internal predecessors, (110), 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) [2024-11-10 09:35:19,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-10 09:35:19,424 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 09:35:19,425 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] [2024-11-10 09:35:19,426 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 09:35:19,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 09:35:19,432 INFO L85 PathProgramCache]: Analyzing trace with hash -1617247425, now seen corresponding path program 1 times [2024-11-10 09:35:19,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 09:35:19,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391770608] [2024-11-10 09:35:19,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 09:35:19,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 09:35:19,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:19,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 09:35:19,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:19,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-10 09:35:19,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:19,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-10 09:35:19,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:19,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-10 09:35:19,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:19,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-10 09:35:19,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:19,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-10 09:35:19,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:19,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-10 09:35:19,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:19,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-10 09:35:19,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:19,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-10 09:35:19,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:19,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-10 09:35:19,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:19,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-10 09:35:19,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:19,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-10 09:35:19,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:19,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-10 09:35:19,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:19,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-10 09:35:19,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:19,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-10 09:35:19,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:19,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-10 09:35:19,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:19,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-10 09:35:19,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:19,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-10 09:35:19,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:19,827 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-10 09:35:19,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 09:35:19,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391770608] [2024-11-10 09:35:19,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391770608] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 09:35:19,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 09:35:19,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 09:35:19,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925748079] [2024-11-10 09:35:19,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 09:35:19,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-10 09:35:19,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 09:35:19,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-10 09:35:19,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 09:35:19,879 INFO L87 Difference]: Start difference. First operand has 102 states, 81 states have (on average 1.3580246913580247) internal successors, (110), 82 states have internal predecessors, (110), 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 22.0) internal successors, (44), 2 states have internal predecessors, (44), 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) [2024-11-10 09:35:19,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 09:35:19,912 INFO L93 Difference]: Finished difference Result 196 states and 303 transitions. [2024-11-10 09:35:19,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-10 09:35:19,914 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (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 131 [2024-11-10 09:35:19,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 09:35:19,920 INFO L225 Difference]: With dead ends: 196 [2024-11-10 09:35:19,920 INFO L226 Difference]: Without dead ends: 97 [2024-11-10 09:35:19,922 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 [2024-11-10 09:35:19,925 INFO L432 NwaCegarLoop]: 134 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 09:35:19,926 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 09:35:19,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2024-11-10 09:35:19,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2024-11-10 09:35:19,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 77 states have (on average 1.2727272727272727) internal successors, (98), 77 states have internal predecessors, (98), 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) [2024-11-10 09:35:19,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 134 transitions. [2024-11-10 09:35:19,965 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 134 transitions. Word has length 131 [2024-11-10 09:35:19,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 09:35:19,966 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 134 transitions. [2024-11-10 09:35:19,966 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (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) [2024-11-10 09:35:19,966 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 134 transitions. [2024-11-10 09:35:19,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-10 09:35:19,968 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 09:35:19,968 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] [2024-11-10 09:35:19,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 09:35:19,968 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 09:35:19,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 09:35:19,969 INFO L85 PathProgramCache]: Analyzing trace with hash -723562607, now seen corresponding path program 1 times [2024-11-10 09:35:19,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 09:35:19,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342010495] [2024-11-10 09:35:19,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 09:35:19,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 09:35:20,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:20,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 09:35:20,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:20,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-10 09:35:20,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:20,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-10 09:35:20,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:20,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-10 09:35:20,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:20,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-10 09:35:20,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:20,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-10 09:35:20,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:20,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-10 09:35:20,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:20,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-10 09:35:20,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:20,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-10 09:35:20,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:20,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-10 09:35:20,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:20,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-10 09:35:20,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:20,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-10 09:35:20,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:20,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-10 09:35:20,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:20,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-10 09:35:20,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:20,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-10 09:35:20,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:20,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-10 09:35:20,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:20,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-10 09:35:20,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:20,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-10 09:35:20,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:20,300 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-10 09:35:20,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 09:35:20,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342010495] [2024-11-10 09:35:20,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342010495] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 09:35:20,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 09:35:20,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 09:35:20,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612093090] [2024-11-10 09:35:20,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 09:35:20,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 09:35:20,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 09:35:20,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 09:35:20,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 09:35:20,306 INFO L87 Difference]: Start difference. First operand 97 states and 134 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 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) [2024-11-10 09:35:20,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 09:35:20,449 INFO L93 Difference]: Finished difference Result 326 states and 452 transitions. [2024-11-10 09:35:20,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 09:35:20,450 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 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 131 [2024-11-10 09:35:20,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 09:35:20,452 INFO L225 Difference]: With dead ends: 326 [2024-11-10 09:35:20,453 INFO L226 Difference]: Without dead ends: 232 [2024-11-10 09:35:20,453 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 [2024-11-10 09:35:20,454 INFO L432 NwaCegarLoop]: 125 mSDtfsCounter, 218 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 09:35:20,455 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 374 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 09:35:20,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2024-11-10 09:35:20,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 196. [2024-11-10 09:35:20,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 157 states have (on average 1.2802547770700636) internal successors, (201), 157 states have internal predecessors, (201), 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) [2024-11-10 09:35:20,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 273 transitions. [2024-11-10 09:35:20,485 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 273 transitions. Word has length 131 [2024-11-10 09:35:20,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 09:35:20,486 INFO L471 AbstractCegarLoop]: Abstraction has 196 states and 273 transitions. [2024-11-10 09:35:20,486 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 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) [2024-11-10 09:35:20,486 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 273 transitions. [2024-11-10 09:35:20,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-10 09:35:20,488 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 09:35:20,488 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] [2024-11-10 09:35:20,488 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 09:35:20,489 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 09:35:20,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 09:35:20,489 INFO L85 PathProgramCache]: Analyzing trace with hash -1043740255, now seen corresponding path program 1 times [2024-11-10 09:35:20,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 09:35:20,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284531573] [2024-11-10 09:35:20,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 09:35:20,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 09:35:20,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:21,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 09:35:21,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:21,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-10 09:35:21,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:21,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-10 09:35:21,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:21,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-10 09:35:21,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:21,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-10 09:35:21,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:21,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-10 09:35:21,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:21,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-10 09:35:21,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:21,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-10 09:35:21,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:21,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-10 09:35:21,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:21,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-10 09:35:21,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:21,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-10 09:35:21,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:21,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-10 09:35:21,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:21,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-10 09:35:21,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:21,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-10 09:35:21,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:21,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-10 09:35:21,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:21,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-10 09:35:21,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:21,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-10 09:35:21,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:21,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-10 09:35:21,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:21,373 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-10 09:35:21,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 09:35:21,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284531573] [2024-11-10 09:35:21,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284531573] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 09:35:21,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 09:35:21,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-10 09:35:21,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445254902] [2024-11-10 09:35:21,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 09:35:21,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-10 09:35:21,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 09:35:21,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-10 09:35:21,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-10 09:35:21,380 INFO L87 Difference]: Start difference. First operand 196 states and 273 transitions. Second operand has 10 states, 10 states have (on average 5.2) internal successors, (52), 10 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) [2024-11-10 09:35:21,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 09:35:21,628 INFO L93 Difference]: Finished difference Result 520 states and 723 transitions. [2024-11-10 09:35:21,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-10 09:35:21,629 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.2) internal successors, (52), 10 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 [2024-11-10 09:35:21,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 09:35:21,631 INFO L225 Difference]: With dead ends: 520 [2024-11-10 09:35:21,631 INFO L226 Difference]: Without dead ends: 327 [2024-11-10 09:35:21,636 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2024-11-10 09:35:21,637 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 82 mSDsluCounter, 842 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 962 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 09:35:21,637 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 962 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 09:35:21,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2024-11-10 09:35:21,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 322. [2024-11-10 09:35:21,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 273 states have (on average 1.3113553113553114) internal successors, (358), 275 states have internal predecessors, (358), 44 states have call successors, (44), 4 states have call predecessors, (44), 4 states have return successors, (44), 42 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-10 09:35:21,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 446 transitions. [2024-11-10 09:35:21,675 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 446 transitions. Word has length 139 [2024-11-10 09:35:21,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 09:35:21,676 INFO L471 AbstractCegarLoop]: Abstraction has 322 states and 446 transitions. [2024-11-10 09:35:21,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.2) internal successors, (52), 10 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) [2024-11-10 09:35:21,676 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 446 transitions. [2024-11-10 09:35:21,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-10 09:35:21,678 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 09:35:21,678 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] [2024-11-10 09:35:21,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 09:35:21,678 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 09:35:21,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 09:35:21,679 INFO L85 PathProgramCache]: Analyzing trace with hash -1174987714, now seen corresponding path program 1 times [2024-11-10 09:35:21,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 09:35:21,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075251493] [2024-11-10 09:35:21,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 09:35:21,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 09:35:21,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:22,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 09:35:22,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:22,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-10 09:35:22,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:22,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-10 09:35:22,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:22,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-10 09:35:22,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:22,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-10 09:35:22,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:22,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-10 09:35:22,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:22,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-10 09:35:22,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:22,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-10 09:35:22,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:22,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-10 09:35:22,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:22,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-10 09:35:22,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:22,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-10 09:35:22,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:22,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-10 09:35:22,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:22,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-10 09:35:22,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:22,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-10 09:35:22,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:22,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-10 09:35:22,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:22,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-10 09:35:22,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:22,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-10 09:35:22,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:22,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-10 09:35:22,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:22,776 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-10 09:35:22,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 09:35:22,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075251493] [2024-11-10 09:35:22,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075251493] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 09:35:22,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 09:35:22,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-10 09:35:22,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904416749] [2024-11-10 09:35:22,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 09:35:22,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-10 09:35:22,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 09:35:22,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-10 09:35:22,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2024-11-10 09:35:22,780 INFO L87 Difference]: Start difference. First operand 322 states and 446 transitions. Second operand has 15 states, 14 states have (on average 3.857142857142857) internal successors, (54), 15 states have internal predecessors, (54), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-10 09:35:23,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 09:35:23,729 INFO L93 Difference]: Finished difference Result 681 states and 936 transitions. [2024-11-10 09:35:23,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-10 09:35:23,730 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 3.857142857142857) internal successors, (54), 15 states have internal predecessors, (54), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 141 [2024-11-10 09:35:23,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 09:35:23,736 INFO L225 Difference]: With dead ends: 681 [2024-11-10 09:35:23,736 INFO L226 Difference]: Without dead ends: 362 [2024-11-10 09:35:23,738 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=127, Invalid=473, Unknown=0, NotChecked=0, Total=600 [2024-11-10 09:35:23,741 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 341 mSDsluCounter, 852 mSDsCounter, 0 mSdLazyCounter, 671 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 341 SdHoareTripleChecker+Valid, 963 SdHoareTripleChecker+Invalid, 674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 671 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-10 09:35:23,741 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [341 Valid, 963 Invalid, 674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 671 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-10 09:35:23,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2024-11-10 09:35:23,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 327. [2024-11-10 09:35:23,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 278 states have (on average 1.3057553956834533) internal successors, (363), 280 states have internal predecessors, (363), 44 states have call successors, (44), 4 states have call predecessors, (44), 4 states have return successors, (44), 42 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-10 09:35:23,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 451 transitions. [2024-11-10 09:35:23,768 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 451 transitions. Word has length 141 [2024-11-10 09:35:23,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 09:35:23,768 INFO L471 AbstractCegarLoop]: Abstraction has 327 states and 451 transitions. [2024-11-10 09:35:23,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 3.857142857142857) internal successors, (54), 15 states have internal predecessors, (54), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-10 09:35:23,769 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 451 transitions. [2024-11-10 09:35:23,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-10 09:35:23,770 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 09:35:23,770 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] [2024-11-10 09:35:23,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 09:35:23,771 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 09:35:23,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 09:35:23,771 INFO L85 PathProgramCache]: Analyzing trace with hash -1088001014, now seen corresponding path program 1 times [2024-11-10 09:35:23,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 09:35:23,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089208565] [2024-11-10 09:35:23,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 09:35:23,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 09:35:23,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:23,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 09:35:23,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:23,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-10 09:35:23,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:23,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-10 09:35:23,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:23,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-10 09:35:23,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:23,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-10 09:35:23,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:23,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-10 09:35:23,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:23,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-10 09:35:23,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:23,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-10 09:35:23,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:23,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-10 09:35:23,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:23,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-10 09:35:23,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:23,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-10 09:35:23,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:23,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-10 09:35:23,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:23,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-10 09:35:23,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:23,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-10 09:35:23,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:23,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-10 09:35:23,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:23,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-10 09:35:23,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:23,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-10 09:35:23,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:23,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-10 09:35:23,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:23,961 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-10 09:35:23,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 09:35:23,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089208565] [2024-11-10 09:35:23,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089208565] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 09:35:23,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 09:35:23,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 09:35:23,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621308460] [2024-11-10 09:35:23,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 09:35:23,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 09:35:23,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 09:35:23,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 09:35:23,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 09:35:23,964 INFO L87 Difference]: Start difference. First operand 327 states and 451 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (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) [2024-11-10 09:35:23,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 09:35:23,992 INFO L93 Difference]: Finished difference Result 663 states and 915 transitions. [2024-11-10 09:35:23,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 09:35:23,993 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (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 141 [2024-11-10 09:35:23,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 09:35:23,995 INFO L225 Difference]: With dead ends: 663 [2024-11-10 09:35:23,995 INFO L226 Difference]: Without dead ends: 339 [2024-11-10 09:35:23,996 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 [2024-11-10 09:35:23,997 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 0 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 09:35:23,997 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 508 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 09:35:23,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2024-11-10 09:35:24,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 339. [2024-11-10 09:35:24,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 290 states have (on average 1.293103448275862) internal successors, (375), 292 states have internal predecessors, (375), 44 states have call successors, (44), 4 states have call predecessors, (44), 4 states have return successors, (44), 42 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-10 09:35:24,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 463 transitions. [2024-11-10 09:35:24,014 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 463 transitions. Word has length 141 [2024-11-10 09:35:24,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 09:35:24,015 INFO L471 AbstractCegarLoop]: Abstraction has 339 states and 463 transitions. [2024-11-10 09:35:24,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (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) [2024-11-10 09:35:24,015 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 463 transitions. [2024-11-10 09:35:24,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-10 09:35:24,016 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 09:35:24,017 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] [2024-11-10 09:35:24,017 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 09:35:24,017 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 09:35:24,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 09:35:24,017 INFO L85 PathProgramCache]: Analyzing trace with hash -1690776802, now seen corresponding path program 1 times [2024-11-10 09:35:24,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 09:35:24,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290914151] [2024-11-10 09:35:24,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 09:35:24,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 09:35:24,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:24,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 09:35:24,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:24,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-10 09:35:24,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:24,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-10 09:35:24,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:24,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-10 09:35:24,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:24,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-10 09:35:24,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:24,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-10 09:35:24,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:24,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-10 09:35:24,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:24,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-10 09:35:24,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:24,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-10 09:35:24,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:24,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-10 09:35:24,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:24,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-10 09:35:24,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:24,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-10 09:35:24,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:24,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-10 09:35:24,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:24,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-10 09:35:24,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:24,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-10 09:35:24,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:24,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-10 09:35:24,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:24,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-10 09:35:24,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:24,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-10 09:35:24,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:24,794 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-10 09:35:24,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 09:35:24,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290914151] [2024-11-10 09:35:24,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290914151] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 09:35:24,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 09:35:24,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-10 09:35:24,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786851387] [2024-11-10 09:35:24,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 09:35:24,795 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-10 09:35:24,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 09:35:24,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-10 09:35:24,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-11-10 09:35:24,796 INFO L87 Difference]: Start difference. First operand 339 states and 463 transitions. Second operand has 15 states, 14 states have (on average 3.857142857142857) internal successors, (54), 15 states have internal predecessors, (54), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-10 09:35:25,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 09:35:25,689 INFO L93 Difference]: Finished difference Result 727 states and 985 transitions. [2024-11-10 09:35:25,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-10 09:35:25,690 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 3.857142857142857) internal successors, (54), 15 states have internal predecessors, (54), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 141 [2024-11-10 09:35:25,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 09:35:25,692 INFO L225 Difference]: With dead ends: 727 [2024-11-10 09:35:25,692 INFO L226 Difference]: Without dead ends: 391 [2024-11-10 09:35:25,693 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=174, Invalid=638, Unknown=0, NotChecked=0, Total=812 [2024-11-10 09:35:25,693 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 280 mSDsluCounter, 1279 mSDsCounter, 0 mSdLazyCounter, 799 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 1445 SdHoareTripleChecker+Invalid, 809 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 799 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-10 09:35:25,694 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 1445 Invalid, 809 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 799 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-10 09:35:25,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2024-11-10 09:35:25,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 339. [2024-11-10 09:35:25,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 290 states have (on average 1.289655172413793) internal successors, (374), 292 states have internal predecessors, (374), 44 states have call successors, (44), 4 states have call predecessors, (44), 4 states have return successors, (44), 42 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-10 09:35:25,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 462 transitions. [2024-11-10 09:35:25,716 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 462 transitions. Word has length 141 [2024-11-10 09:35:25,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 09:35:25,717 INFO L471 AbstractCegarLoop]: Abstraction has 339 states and 462 transitions. [2024-11-10 09:35:25,717 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 3.857142857142857) internal successors, (54), 15 states have internal predecessors, (54), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-10 09:35:25,717 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 462 transitions. [2024-11-10 09:35:25,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-10 09:35:25,718 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 09:35:25,719 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, 1] [2024-11-10 09:35:25,719 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-10 09:35:25,720 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 09:35:25,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 09:35:25,720 INFO L85 PathProgramCache]: Analyzing trace with hash -267142227, now seen corresponding path program 1 times [2024-11-10 09:35:25,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 09:35:25,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593503724] [2024-11-10 09:35:25,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 09:35:25,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 09:35:25,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:26,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 09:35:26,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:26,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-10 09:35:26,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:26,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-10 09:35:26,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:26,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-10 09:35:26,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:26,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-10 09:35:26,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:26,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-10 09:35:26,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:26,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-10 09:35:26,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:26,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-10 09:35:26,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:26,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-10 09:35:26,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:26,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-10 09:35:26,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:26,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-10 09:35:26,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:26,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-10 09:35:26,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:26,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-10 09:35:26,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:26,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-10 09:35:26,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:26,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-10 09:35:26,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:26,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-10 09:35:26,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:26,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-10 09:35:26,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:26,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-10 09:35:26,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:26,620 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-10 09:35:26,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 09:35:26,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593503724] [2024-11-10 09:35:26,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593503724] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 09:35:26,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 09:35:26,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-10 09:35:26,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330241786] [2024-11-10 09:35:26,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 09:35:26,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-10 09:35:26,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 09:35:26,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-10 09:35:26,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2024-11-10 09:35:26,622 INFO L87 Difference]: Start difference. First operand 339 states and 462 transitions. Second operand has 15 states, 14 states have (on average 3.9285714285714284) internal successors, (55), 15 states have internal predecessors, (55), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-10 09:35:27,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 09:35:27,598 INFO L93 Difference]: Finished difference Result 592 states and 798 transitions. [2024-11-10 09:35:27,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-10 09:35:27,599 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 3.9285714285714284) internal successors, (55), 15 states have internal predecessors, (55), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 142 [2024-11-10 09:35:27,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 09:35:27,601 INFO L225 Difference]: With dead ends: 592 [2024-11-10 09:35:27,601 INFO L226 Difference]: Without dead ends: 432 [2024-11-10 09:35:27,602 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=129, Invalid=521, Unknown=0, NotChecked=0, Total=650 [2024-11-10 09:35:27,603 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 379 mSDsluCounter, 1130 mSDsCounter, 0 mSdLazyCounter, 880 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 379 SdHoareTripleChecker+Valid, 1296 SdHoareTripleChecker+Invalid, 885 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 880 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-10 09:35:27,603 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [379 Valid, 1296 Invalid, 885 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 880 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-10 09:35:27,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2024-11-10 09:35:27,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 348. [2024-11-10 09:35:27,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 299 states have (on average 1.2876254180602007) internal successors, (385), 301 states have internal predecessors, (385), 44 states have call successors, (44), 4 states have call predecessors, (44), 4 states have return successors, (44), 42 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-10 09:35:27,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 473 transitions. [2024-11-10 09:35:27,630 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 473 transitions. Word has length 142 [2024-11-10 09:35:27,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 09:35:27,630 INFO L471 AbstractCegarLoop]: Abstraction has 348 states and 473 transitions. [2024-11-10 09:35:27,630 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 3.9285714285714284) internal successors, (55), 15 states have internal predecessors, (55), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-10 09:35:27,631 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 473 transitions. [2024-11-10 09:35:27,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-10 09:35:27,632 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 09:35:27,632 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, 1] [2024-11-10 09:35:27,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-10 09:35:27,632 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 09:35:27,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 09:35:27,632 INFO L85 PathProgramCache]: Analyzing trace with hash -1333352717, now seen corresponding path program 1 times [2024-11-10 09:35:27,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 09:35:27,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070383914] [2024-11-10 09:35:27,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 09:35:27,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 09:35:27,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:28,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 09:35:28,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:28,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-10 09:35:28,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:28,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-10 09:35:28,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:28,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-10 09:35:28,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:28,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-10 09:35:28,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:28,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-10 09:35:28,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:28,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-10 09:35:28,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:28,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-10 09:35:28,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:28,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-10 09:35:28,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:28,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-10 09:35:28,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:28,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-10 09:35:28,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:28,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-10 09:35:28,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:28,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-10 09:35:28,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:28,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-10 09:35:28,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:28,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-10 09:35:28,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:28,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-10 09:35:28,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:28,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-10 09:35:28,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:28,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-10 09:35:28,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:28,289 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-10 09:35:28,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 09:35:28,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070383914] [2024-11-10 09:35:28,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070383914] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 09:35:28,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 09:35:28,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-10 09:35:28,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114900818] [2024-11-10 09:35:28,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 09:35:28,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-10 09:35:28,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 09:35:28,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-10 09:35:28,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-11-10 09:35:28,291 INFO L87 Difference]: Start difference. First operand 348 states and 473 transitions. Second operand has 15 states, 13 states have (on average 4.230769230769231) internal successors, (55), 15 states have internal predecessors, (55), 6 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 6 states have call successors, (18) [2024-11-10 09:35:28,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 09:35:28,921 INFO L93 Difference]: Finished difference Result 573 states and 779 transitions. [2024-11-10 09:35:28,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-10 09:35:28,922 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 4.230769230769231) internal successors, (55), 15 states have internal predecessors, (55), 6 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 6 states have call successors, (18) Word has length 142 [2024-11-10 09:35:28,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 09:35:28,923 INFO L225 Difference]: With dead ends: 573 [2024-11-10 09:35:28,923 INFO L226 Difference]: Without dead ends: 406 [2024-11-10 09:35:28,924 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=139, Invalid=511, Unknown=0, NotChecked=0, Total=650 [2024-11-10 09:35:28,925 INFO L432 NwaCegarLoop]: 155 mSDtfsCounter, 295 mSDsluCounter, 906 mSDsCounter, 0 mSdLazyCounter, 614 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 1061 SdHoareTripleChecker+Invalid, 663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 614 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-10 09:35:28,929 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 1061 Invalid, 663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 614 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-10 09:35:28,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states. [2024-11-10 09:35:28,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 363. [2024-11-10 09:35:28,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 314 states have (on average 1.2993630573248407) internal successors, (408), 316 states have internal predecessors, (408), 44 states have call successors, (44), 4 states have call predecessors, (44), 4 states have return successors, (44), 42 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-10 09:35:28,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 496 transitions. [2024-11-10 09:35:28,952 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 496 transitions. Word has length 142 [2024-11-10 09:35:28,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 09:35:28,952 INFO L471 AbstractCegarLoop]: Abstraction has 363 states and 496 transitions. [2024-11-10 09:35:28,952 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 4.230769230769231) internal successors, (55), 15 states have internal predecessors, (55), 6 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 6 states have call successors, (18) [2024-11-10 09:35:28,952 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 496 transitions. [2024-11-10 09:35:28,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-10 09:35:28,953 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 09:35:28,953 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, 1, 1] [2024-11-10 09:35:28,954 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-10 09:35:28,954 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 09:35:28,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 09:35:28,954 INFO L85 PathProgramCache]: Analyzing trace with hash -1997306783, now seen corresponding path program 1 times [2024-11-10 09:35:28,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 09:35:28,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154241460] [2024-11-10 09:35:28,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 09:35:28,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 09:35:29,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:30,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 09:35:30,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:30,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-10 09:35:30,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:30,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-10 09:35:30,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:30,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-10 09:35:30,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:30,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-10 09:35:30,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:30,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-10 09:35:30,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:30,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-10 09:35:30,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:30,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-10 09:35:30,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:30,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-10 09:35:30,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:30,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-10 09:35:30,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:30,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-10 09:35:30,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:30,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-10 09:35:30,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:30,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-10 09:35:30,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:30,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-10 09:35:30,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:30,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-10 09:35:30,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:30,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-10 09:35:30,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:30,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-10 09:35:30,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:30,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-10 09:35:30,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:30,261 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-10 09:35:30,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 09:35:30,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154241460] [2024-11-10 09:35:30,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154241460] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 09:35:30,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 09:35:30,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-11-10 09:35:30,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681996238] [2024-11-10 09:35:30,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 09:35:30,264 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-10 09:35:30,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 09:35:30,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-10 09:35:30,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=355, Unknown=0, NotChecked=0, Total=420 [2024-11-10 09:35:30,265 INFO L87 Difference]: Start difference. First operand 363 states and 496 transitions. Second operand has 21 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 20 states have internal predecessors, (56), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-10 09:35:31,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 09:35:31,662 INFO L93 Difference]: Finished difference Result 769 states and 1042 transitions. [2024-11-10 09:35:31,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-10 09:35:31,663 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 20 states have internal predecessors, (56), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 5 states have call successors, (18) Word has length 143 [2024-11-10 09:35:31,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 09:35:31,665 INFO L225 Difference]: With dead ends: 769 [2024-11-10 09:35:31,665 INFO L226 Difference]: Without dead ends: 409 [2024-11-10 09:35:31,666 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=209, Invalid=981, Unknown=0, NotChecked=0, Total=1190 [2024-11-10 09:35:31,667 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 418 mSDsluCounter, 1239 mSDsCounter, 0 mSdLazyCounter, 1271 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 418 SdHoareTripleChecker+Valid, 1366 SdHoareTripleChecker+Invalid, 1310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-10 09:35:31,667 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [418 Valid, 1366 Invalid, 1310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1271 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-10 09:35:31,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2024-11-10 09:35:31,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 363. [2024-11-10 09:35:31,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 314 states have (on average 1.2993630573248407) internal successors, (408), 316 states have internal predecessors, (408), 44 states have call successors, (44), 4 states have call predecessors, (44), 4 states have return successors, (44), 42 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-10 09:35:31,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 496 transitions. [2024-11-10 09:35:31,691 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 496 transitions. Word has length 143 [2024-11-10 09:35:31,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 09:35:31,691 INFO L471 AbstractCegarLoop]: Abstraction has 363 states and 496 transitions. [2024-11-10 09:35:31,691 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 20 states have internal predecessors, (56), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-10 09:35:31,691 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 496 transitions. [2024-11-10 09:35:31,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-10 09:35:31,692 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 09:35:31,692 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, 1, 1] [2024-11-10 09:35:31,692 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-10 09:35:31,693 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 09:35:31,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 09:35:31,693 INFO L85 PathProgramCache]: Analyzing trace with hash 301772744, now seen corresponding path program 1 times [2024-11-10 09:35:31,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 09:35:31,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782715213] [2024-11-10 09:35:31,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 09:35:31,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 09:35:31,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:32,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 09:35:32,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:32,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-10 09:35:32,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:32,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-10 09:35:32,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:32,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-10 09:35:32,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:32,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-10 09:35:32,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:32,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-10 09:35:32,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:32,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-10 09:35:32,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:32,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-10 09:35:32,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:32,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-10 09:35:32,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:32,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-10 09:35:32,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:32,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-10 09:35:32,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:32,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-10 09:35:32,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:32,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-10 09:35:32,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:32,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-10 09:35:32,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:32,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-10 09:35:32,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:32,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-10 09:35:32,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:32,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-10 09:35:32,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:32,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-10 09:35:32,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:32,715 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-10 09:35:32,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 09:35:32,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782715213] [2024-11-10 09:35:32,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782715213] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 09:35:32,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 09:35:32,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-10 09:35:32,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093788023] [2024-11-10 09:35:32,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 09:35:32,716 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-10 09:35:32,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 09:35:32,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-10 09:35:32,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2024-11-10 09:35:32,717 INFO L87 Difference]: Start difference. First operand 363 states and 496 transitions. Second operand has 18 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 17 states have internal predecessors, (56), 9 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 7 states have call predecessors, (18), 9 states have call successors, (18) [2024-11-10 09:35:33,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 09:35:33,642 INFO L93 Difference]: Finished difference Result 1039 states and 1408 transitions. [2024-11-10 09:35:33,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-10 09:35:33,643 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 17 states have internal predecessors, (56), 9 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 7 states have call predecessors, (18), 9 states have call successors, (18) Word has length 143 [2024-11-10 09:35:33,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 09:35:33,646 INFO L225 Difference]: With dead ends: 1039 [2024-11-10 09:35:33,647 INFO L226 Difference]: Without dead ends: 679 [2024-11-10 09:35:33,649 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=247, Invalid=943, Unknown=0, NotChecked=0, Total=1190 [2024-11-10 09:35:33,649 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 870 mSDsluCounter, 802 mSDsCounter, 0 mSdLazyCounter, 668 mSolverCounterSat, 232 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 870 SdHoareTripleChecker+Valid, 902 SdHoareTripleChecker+Invalid, 900 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 232 IncrementalHoareTripleChecker+Valid, 668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-10 09:35:33,650 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [870 Valid, 902 Invalid, 900 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [232 Valid, 668 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-10 09:35:33,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 679 states. [2024-11-10 09:35:33,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 679 to 654. [2024-11-10 09:35:33,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 654 states, 551 states have (on average 1.2758620689655173) internal successors, (703), 556 states have internal predecessors, (703), 92 states have call successors, (92), 10 states have call predecessors, (92), 10 states have return successors, (92), 87 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-10 09:35:33,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 887 transitions. [2024-11-10 09:35:33,690 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 887 transitions. Word has length 143 [2024-11-10 09:35:33,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 09:35:33,692 INFO L471 AbstractCegarLoop]: Abstraction has 654 states and 887 transitions. [2024-11-10 09:35:33,692 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 17 states have internal predecessors, (56), 9 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 7 states have call predecessors, (18), 9 states have call successors, (18) [2024-11-10 09:35:33,692 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 887 transitions. [2024-11-10 09:35:33,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-10 09:35:33,693 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 09:35:33,693 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, 1, 1] [2024-11-10 09:35:33,693 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-10 09:35:33,693 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 09:35:33,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 09:35:33,693 INFO L85 PathProgramCache]: Analyzing trace with hash -1455396394, now seen corresponding path program 1 times [2024-11-10 09:35:33,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 09:35:33,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207927351] [2024-11-10 09:35:33,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 09:35:33,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 09:35:33,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:34,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 09:35:34,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:34,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-10 09:35:34,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:34,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-10 09:35:34,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:34,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-10 09:35:34,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:34,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-10 09:35:34,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:34,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-10 09:35:34,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:34,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-10 09:35:34,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:34,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-10 09:35:34,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:34,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-10 09:35:34,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:34,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-10 09:35:34,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:34,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-10 09:35:34,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:34,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-10 09:35:34,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:34,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-10 09:35:34,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:34,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-10 09:35:34,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:34,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-10 09:35:34,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:34,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-10 09:35:34,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:34,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-10 09:35:34,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:34,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-10 09:35:34,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:34,063 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-10 09:35:34,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 09:35:34,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207927351] [2024-11-10 09:35:34,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207927351] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 09:35:34,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 09:35:34,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 09:35:34,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669348694] [2024-11-10 09:35:34,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 09:35:34,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 09:35:34,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 09:35:34,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 09:35:34,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-10 09:35:34,065 INFO L87 Difference]: Start difference. First operand 654 states and 887 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 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) [2024-11-10 09:35:34,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 09:35:34,190 INFO L93 Difference]: Finished difference Result 1102 states and 1454 transitions. [2024-11-10 09:35:34,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 09:35:34,191 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 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 143 [2024-11-10 09:35:34,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 09:35:34,209 INFO L225 Difference]: With dead ends: 1102 [2024-11-10 09:35:34,209 INFO L226 Difference]: Without dead ends: 1099 [2024-11-10 09:35:34,209 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-10 09:35:34,211 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 59 mSDsluCounter, 698 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 845 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 09:35:34,211 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 845 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 09:35:34,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1099 states. [2024-11-10 09:35:34,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1099 to 890. [2024-11-10 09:35:34,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 890 states, 773 states have (on average 1.261319534282018) internal successors, (975), 780 states have internal predecessors, (975), 104 states have call successors, (104), 12 states have call predecessors, (104), 12 states have return successors, (104), 97 states have call predecessors, (104), 104 states have call successors, (104) [2024-11-10 09:35:34,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 890 states to 890 states and 1183 transitions. [2024-11-10 09:35:34,283 INFO L78 Accepts]: Start accepts. Automaton has 890 states and 1183 transitions. Word has length 143 [2024-11-10 09:35:34,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 09:35:34,284 INFO L471 AbstractCegarLoop]: Abstraction has 890 states and 1183 transitions. [2024-11-10 09:35:34,284 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 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) [2024-11-10 09:35:34,284 INFO L276 IsEmpty]: Start isEmpty. Operand 890 states and 1183 transitions. [2024-11-10 09:35:34,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-10 09:35:34,285 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 09:35:34,286 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, 1, 1] [2024-11-10 09:35:34,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-10 09:35:34,286 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 09:35:34,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 09:35:34,286 INFO L85 PathProgramCache]: Analyzing trace with hash -206851461, now seen corresponding path program 1 times [2024-11-10 09:35:34,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 09:35:34,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165397034] [2024-11-10 09:35:34,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 09:35:34,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 09:35:34,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:35,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 09:35:35,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:35,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-10 09:35:35,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:35,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-10 09:35:35,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:35,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-10 09:35:35,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:35,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-10 09:35:35,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:35,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-10 09:35:35,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:35,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-10 09:35:35,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:35,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-10 09:35:35,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:35,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-10 09:35:35,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:35,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-10 09:35:35,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:35,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-10 09:35:35,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:35,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-10 09:35:35,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:35,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-10 09:35:35,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:35,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-10 09:35:35,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:35,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-10 09:35:35,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:35,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-10 09:35:35,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:35,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-10 09:35:35,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:35,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-10 09:35:35,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:35,194 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-10 09:35:35,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 09:35:35,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165397034] [2024-11-10 09:35:35,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165397034] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 09:35:35,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 09:35:35,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-11-10 09:35:35,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734466076] [2024-11-10 09:35:35,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 09:35:35,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-10 09:35:35,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 09:35:35,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-10 09:35:35,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=331, Unknown=0, NotChecked=0, Total=380 [2024-11-10 09:35:35,198 INFO L87 Difference]: Start difference. First operand 890 states and 1183 transitions. Second operand has 20 states, 18 states have (on average 3.111111111111111) internal successors, (56), 19 states have internal predecessors, (56), 6 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 6 states have call successors, (18) [2024-11-10 09:35:36,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 09:35:36,135 INFO L93 Difference]: Finished difference Result 2029 states and 2683 transitions. [2024-11-10 09:35:36,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-10 09:35:36,136 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 18 states have (on average 3.111111111111111) internal successors, (56), 19 states have internal predecessors, (56), 6 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 6 states have call successors, (18) Word has length 143 [2024-11-10 09:35:36,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 09:35:36,141 INFO L225 Difference]: With dead ends: 2029 [2024-11-10 09:35:36,141 INFO L226 Difference]: Without dead ends: 1142 [2024-11-10 09:35:36,144 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=223, Invalid=1183, Unknown=0, NotChecked=0, Total=1406 [2024-11-10 09:35:36,145 INFO L432 NwaCegarLoop]: 163 mSDtfsCounter, 260 mSDsluCounter, 1616 mSDsCounter, 0 mSdLazyCounter, 928 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 1779 SdHoareTripleChecker+Invalid, 933 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 928 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-10 09:35:36,145 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 1779 Invalid, 933 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 928 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-10 09:35:36,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1142 states. [2024-11-10 09:35:36,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1142 to 938. [2024-11-10 09:35:36,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 938 states, 821 states have (on average 1.2582216808769793) internal successors, (1033), 828 states have internal predecessors, (1033), 104 states have call successors, (104), 12 states have call predecessors, (104), 12 states have return successors, (104), 97 states have call predecessors, (104), 104 states have call successors, (104) [2024-11-10 09:35:36,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 938 states to 938 states and 1241 transitions. [2024-11-10 09:35:36,190 INFO L78 Accepts]: Start accepts. Automaton has 938 states and 1241 transitions. Word has length 143 [2024-11-10 09:35:36,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 09:35:36,190 INFO L471 AbstractCegarLoop]: Abstraction has 938 states and 1241 transitions. [2024-11-10 09:35:36,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 18 states have (on average 3.111111111111111) internal successors, (56), 19 states have internal predecessors, (56), 6 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 6 states have call successors, (18) [2024-11-10 09:35:36,190 INFO L276 IsEmpty]: Start isEmpty. Operand 938 states and 1241 transitions. [2024-11-10 09:35:36,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-10 09:35:36,192 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 09:35:36,193 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, 1, 1, 1] [2024-11-10 09:35:36,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-10 09:35:36,193 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 09:35:36,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 09:35:36,193 INFO L85 PathProgramCache]: Analyzing trace with hash -1436154864, now seen corresponding path program 1 times [2024-11-10 09:35:36,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 09:35:36,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153247582] [2024-11-10 09:35:36,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 09:35:36,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 09:35:36,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:37,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 09:35:37,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:37,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-10 09:35:37,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:37,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-10 09:35:37,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:37,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-10 09:35:37,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:37,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-10 09:35:37,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:37,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-10 09:35:37,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:37,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-10 09:35:37,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:37,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-10 09:35:37,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:37,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-10 09:35:37,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:37,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-10 09:35:37,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:37,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-10 09:35:37,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:37,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-10 09:35:37,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:37,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-10 09:35:37,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:37,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-10 09:35:37,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:37,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-10 09:35:37,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:37,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-10 09:35:37,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:37,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-10 09:35:37,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:37,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-10 09:35:37,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:37,116 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-10 09:35:37,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 09:35:37,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153247582] [2024-11-10 09:35:37,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153247582] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 09:35:37,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 09:35:37,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-10 09:35:37,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954252977] [2024-11-10 09:35:37,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 09:35:37,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-10 09:35:37,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 09:35:37,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-10 09:35:37,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2024-11-10 09:35:37,118 INFO L87 Difference]: Start difference. First operand 938 states and 1241 transitions. Second operand has 18 states, 17 states have (on average 3.3529411764705883) internal successors, (57), 18 states have internal predecessors, (57), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-10 09:35:38,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 09:35:38,378 INFO L93 Difference]: Finished difference Result 1607 states and 2128 transitions. [2024-11-10 09:35:38,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-10 09:35:38,379 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.3529411764705883) internal successors, (57), 18 states have internal predecessors, (57), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 144 [2024-11-10 09:35:38,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 09:35:38,382 INFO L225 Difference]: With dead ends: 1607 [2024-11-10 09:35:38,382 INFO L226 Difference]: Without dead ends: 1062 [2024-11-10 09:35:38,384 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=155, Invalid=837, Unknown=0, NotChecked=0, Total=992 [2024-11-10 09:35:38,384 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 363 mSDsluCounter, 1359 mSDsCounter, 0 mSdLazyCounter, 1234 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 363 SdHoareTripleChecker+Valid, 1520 SdHoareTripleChecker+Invalid, 1237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-10 09:35:38,384 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [363 Valid, 1520 Invalid, 1237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1234 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-10 09:35:38,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1062 states. [2024-11-10 09:35:38,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1062 to 947. [2024-11-10 09:35:38,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 947 states, 830 states have (on average 1.2590361445783131) internal successors, (1045), 837 states have internal predecessors, (1045), 104 states have call successors, (104), 12 states have call predecessors, (104), 12 states have return successors, (104), 97 states have call predecessors, (104), 104 states have call successors, (104) [2024-11-10 09:35:38,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 947 states to 947 states and 1253 transitions. [2024-11-10 09:35:38,427 INFO L78 Accepts]: Start accepts. Automaton has 947 states and 1253 transitions. Word has length 144 [2024-11-10 09:35:38,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 09:35:38,427 INFO L471 AbstractCegarLoop]: Abstraction has 947 states and 1253 transitions. [2024-11-10 09:35:38,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.3529411764705883) internal successors, (57), 18 states have internal predecessors, (57), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-10 09:35:38,427 INFO L276 IsEmpty]: Start isEmpty. Operand 947 states and 1253 transitions. [2024-11-10 09:35:38,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-10 09:35:38,428 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 09:35:38,429 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, 1, 1, 1] [2024-11-10 09:35:38,429 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-10 09:35:38,429 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 09:35:38,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 09:35:38,429 INFO L85 PathProgramCache]: Analyzing trace with hash 862924663, now seen corresponding path program 1 times [2024-11-10 09:35:38,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 09:35:38,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717665566] [2024-11-10 09:35:38,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 09:35:38,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 09:35:38,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:38,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 09:35:38,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:38,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-10 09:35:38,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:38,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-10 09:35:38,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:38,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-10 09:35:38,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:38,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-10 09:35:38,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:38,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-10 09:35:38,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:38,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-10 09:35:38,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:38,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-10 09:35:38,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:38,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-10 09:35:38,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:38,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-10 09:35:38,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:38,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-10 09:35:38,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:38,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-10 09:35:38,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:38,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-10 09:35:38,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:38,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-10 09:35:38,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:38,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-10 09:35:38,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:38,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-10 09:35:38,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:38,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-10 09:35:38,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:38,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-10 09:35:38,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:38,884 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-10 09:35:38,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 09:35:38,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717665566] [2024-11-10 09:35:38,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717665566] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 09:35:38,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 09:35:38,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-10 09:35:38,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267198975] [2024-11-10 09:35:38,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 09:35:38,885 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-10 09:35:38,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 09:35:38,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-10 09:35:38,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-11-10 09:35:38,886 INFO L87 Difference]: Start difference. First operand 947 states and 1253 transitions. Second operand has 11 states, 10 states have (on average 5.7) internal successors, (57), 11 states have internal predecessors, (57), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-10 09:35:39,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 09:35:39,223 INFO L93 Difference]: Finished difference Result 1916 states and 2543 transitions. [2024-11-10 09:35:39,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-10 09:35:39,224 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.7) internal successors, (57), 11 states have internal predecessors, (57), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 144 [2024-11-10 09:35:39,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 09:35:39,228 INFO L225 Difference]: With dead ends: 1916 [2024-11-10 09:35:39,228 INFO L226 Difference]: Without dead ends: 1364 [2024-11-10 09:35:39,229 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=339, Unknown=0, NotChecked=0, Total=420 [2024-11-10 09:35:39,230 INFO L432 NwaCegarLoop]: 182 mSDtfsCounter, 276 mSDsluCounter, 1024 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 1206 SdHoareTripleChecker+Invalid, 447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 09:35:39,230 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [276 Valid, 1206 Invalid, 447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 09:35:39,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1364 states. [2024-11-10 09:35:39,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1364 to 1341. [2024-11-10 09:35:39,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1341 states, 1182 states have (on average 1.263959390862944) internal successors, (1494), 1195 states have internal predecessors, (1494), 140 states have call successors, (140), 18 states have call predecessors, (140), 18 states have return successors, (140), 127 states have call predecessors, (140), 140 states have call successors, (140) [2024-11-10 09:35:39,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1341 states to 1341 states and 1774 transitions. [2024-11-10 09:35:39,289 INFO L78 Accepts]: Start accepts. Automaton has 1341 states and 1774 transitions. Word has length 144 [2024-11-10 09:35:39,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 09:35:39,289 INFO L471 AbstractCegarLoop]: Abstraction has 1341 states and 1774 transitions. [2024-11-10 09:35:39,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.7) internal successors, (57), 11 states have internal predecessors, (57), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-10 09:35:39,290 INFO L276 IsEmpty]: Start isEmpty. Operand 1341 states and 1774 transitions. [2024-11-10 09:35:39,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-10 09:35:39,292 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 09:35:39,292 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, 1, 1, 1] [2024-11-10 09:35:39,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-10 09:35:39,292 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 09:35:39,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 09:35:39,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1447594800, now seen corresponding path program 1 times [2024-11-10 09:35:39,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 09:35:39,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323862275] [2024-11-10 09:35:39,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 09:35:39,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 09:35:39,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:39,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 09:35:39,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:39,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-10 09:35:39,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:39,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-10 09:35:39,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:39,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-10 09:35:39,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:39,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-10 09:35:39,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:39,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-10 09:35:39,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:39,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-10 09:35:39,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:39,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-10 09:35:39,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:39,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-10 09:35:39,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:39,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-10 09:35:39,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:39,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-10 09:35:39,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:39,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-10 09:35:39,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:39,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-10 09:35:39,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:39,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-10 09:35:39,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:39,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-10 09:35:39,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:39,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-10 09:35:39,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:39,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-10 09:35:39,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:39,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-10 09:35:39,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:39,698 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-10 09:35:39,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 09:35:39,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323862275] [2024-11-10 09:35:39,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323862275] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 09:35:39,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 09:35:39,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-10 09:35:39,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677557843] [2024-11-10 09:35:39,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 09:35:39,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-10 09:35:39,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 09:35:39,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-10 09:35:39,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-10 09:35:39,702 INFO L87 Difference]: Start difference. First operand 1341 states and 1774 transitions. Second operand has 12 states, 11 states have (on average 5.181818181818182) internal successors, (57), 12 states have internal predecessors, (57), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-10 09:35:40,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 09:35:40,046 INFO L93 Difference]: Finished difference Result 2646 states and 3502 transitions. [2024-11-10 09:35:40,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-10 09:35:40,047 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.181818181818182) internal successors, (57), 12 states have internal predecessors, (57), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 144 [2024-11-10 09:35:40,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 09:35:40,051 INFO L225 Difference]: With dead ends: 2646 [2024-11-10 09:35:40,052 INFO L226 Difference]: Without dead ends: 1308 [2024-11-10 09:35:40,055 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=296, Unknown=0, NotChecked=0, Total=380 [2024-11-10 09:35:40,055 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 230 mSDsluCounter, 525 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 643 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 09:35:40,055 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 643 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 09:35:40,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1308 states. [2024-11-10 09:35:40,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1308 to 1269. [2024-11-10 09:35:40,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1269 states, 1110 states have (on average 1.2612612612612613) internal successors, (1400), 1123 states have internal predecessors, (1400), 140 states have call successors, (140), 18 states have call predecessors, (140), 18 states have return successors, (140), 127 states have call predecessors, (140), 140 states have call successors, (140) [2024-11-10 09:35:40,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1269 states to 1269 states and 1680 transitions. [2024-11-10 09:35:40,114 INFO L78 Accepts]: Start accepts. Automaton has 1269 states and 1680 transitions. Word has length 144 [2024-11-10 09:35:40,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 09:35:40,114 INFO L471 AbstractCegarLoop]: Abstraction has 1269 states and 1680 transitions. [2024-11-10 09:35:40,114 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.181818181818182) internal successors, (57), 12 states have internal predecessors, (57), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-10 09:35:40,114 INFO L276 IsEmpty]: Start isEmpty. Operand 1269 states and 1680 transitions. [2024-11-10 09:35:40,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-10 09:35:40,115 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 09:35:40,116 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, 1, 1, 1] [2024-11-10 09:35:40,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-10 09:35:40,116 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 09:35:40,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 09:35:40,116 INFO L85 PathProgramCache]: Analyzing trace with hash -319689456, now seen corresponding path program 1 times [2024-11-10 09:35:40,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 09:35:40,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067048712] [2024-11-10 09:35:40,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 09:35:40,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 09:35:40,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:40,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 09:35:40,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:40,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-10 09:35:40,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:40,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-10 09:35:40,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:40,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-10 09:35:40,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:40,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-10 09:35:40,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:40,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-10 09:35:40,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:40,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-10 09:35:40,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:40,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-10 09:35:40,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:40,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-10 09:35:40,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:40,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-10 09:35:40,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:40,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-10 09:35:40,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:40,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-10 09:35:40,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:40,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-10 09:35:40,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:40,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-10 09:35:40,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:40,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-10 09:35:40,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:40,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-10 09:35:40,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:40,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-10 09:35:40,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:40,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-10 09:35:40,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:40,559 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-10 09:35:40,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 09:35:40,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067048712] [2024-11-10 09:35:40,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067048712] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 09:35:40,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 09:35:40,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-10 09:35:40,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145186741] [2024-11-10 09:35:40,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 09:35:40,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-10 09:35:40,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 09:35:40,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-10 09:35:40,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-11-10 09:35:40,562 INFO L87 Difference]: Start difference. First operand 1269 states and 1680 transitions. Second operand has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 13 states have internal predecessors, (57), 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) [2024-11-10 09:35:40,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 09:35:40,894 INFO L93 Difference]: Finished difference Result 2692 states and 3553 transitions. [2024-11-10 09:35:40,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-10 09:35:40,895 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 13 states have internal predecessors, (57), 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 144 [2024-11-10 09:35:40,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 09:35:40,902 INFO L225 Difference]: With dead ends: 2692 [2024-11-10 09:35:40,903 INFO L226 Difference]: Without dead ends: 1426 [2024-11-10 09:35:40,905 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2024-11-10 09:35:40,906 INFO L432 NwaCegarLoop]: 170 mSDtfsCounter, 59 mSDsluCounter, 1374 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 1544 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 09:35:40,906 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 1544 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 09:35:40,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1426 states. [2024-11-10 09:35:41,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1426 to 1233. [2024-11-10 09:35:41,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1233 states, 1074 states have (on average 1.2588454376163873) internal successors, (1352), 1087 states have internal predecessors, (1352), 140 states have call successors, (140), 18 states have call predecessors, (140), 18 states have return successors, (140), 127 states have call predecessors, (140), 140 states have call successors, (140) [2024-11-10 09:35:41,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1233 states to 1233 states and 1632 transitions. [2024-11-10 09:35:41,015 INFO L78 Accepts]: Start accepts. Automaton has 1233 states and 1632 transitions. Word has length 144 [2024-11-10 09:35:41,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 09:35:41,017 INFO L471 AbstractCegarLoop]: Abstraction has 1233 states and 1632 transitions. [2024-11-10 09:35:41,017 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 13 states have internal predecessors, (57), 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) [2024-11-10 09:35:41,017 INFO L276 IsEmpty]: Start isEmpty. Operand 1233 states and 1632 transitions. [2024-11-10 09:35:41,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-10 09:35:41,018 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 09:35:41,018 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, 1, 1, 1, 1] [2024-11-10 09:35:41,019 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-10 09:35:41,019 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 09:35:41,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 09:35:41,019 INFO L85 PathProgramCache]: Analyzing trace with hash -275200693, now seen corresponding path program 1 times [2024-11-10 09:35:41,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 09:35:41,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081801403] [2024-11-10 09:35:41,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 09:35:41,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 09:35:41,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:41,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 09:35:41,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:41,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-10 09:35:41,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:41,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-10 09:35:41,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:41,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-10 09:35:41,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:41,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-10 09:35:41,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:41,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-10 09:35:41,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:41,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-10 09:35:41,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:41,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-10 09:35:41,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:41,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-10 09:35:41,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:41,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-10 09:35:41,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:41,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-10 09:35:41,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:41,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-10 09:35:41,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:41,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-10 09:35:41,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:41,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-10 09:35:41,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:41,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-10 09:35:41,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:41,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-10 09:35:41,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:41,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-10 09:35:41,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:41,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-10 09:35:41,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:41,184 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-10 09:35:41,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 09:35:41,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081801403] [2024-11-10 09:35:41,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081801403] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 09:35:41,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 09:35:41,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 09:35:41,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087046970] [2024-11-10 09:35:41,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 09:35:41,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 09:35:41,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 09:35:41,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 09:35:41,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 09:35:41,186 INFO L87 Difference]: Start difference. First operand 1233 states and 1632 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (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) [2024-11-10 09:35:41,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 09:35:41,314 INFO L93 Difference]: Finished difference Result 2873 states and 3788 transitions. [2024-11-10 09:35:41,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 09:35:41,318 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (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 145 [2024-11-10 09:35:41,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 09:35:41,324 INFO L225 Difference]: With dead ends: 2873 [2024-11-10 09:35:41,324 INFO L226 Difference]: Without dead ends: 1643 [2024-11-10 09:35:41,328 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 [2024-11-10 09:35:41,329 INFO L432 NwaCegarLoop]: 180 mSDtfsCounter, 81 mSDsluCounter, 443 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 623 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 09:35:41,329 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 623 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 09:35:41,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1643 states. [2024-11-10 09:35:41,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1643 to 1636. [2024-11-10 09:35:41,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1636 states, 1411 states have (on average 1.2409638554216869) internal successors, (1751), 1431 states have internal predecessors, (1751), 196 states have call successors, (196), 28 states have call predecessors, (196), 28 states have return successors, (196), 176 states have call predecessors, (196), 196 states have call successors, (196) [2024-11-10 09:35:41,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1636 states to 1636 states and 2143 transitions. [2024-11-10 09:35:41,413 INFO L78 Accepts]: Start accepts. Automaton has 1636 states and 2143 transitions. Word has length 145 [2024-11-10 09:35:41,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 09:35:41,413 INFO L471 AbstractCegarLoop]: Abstraction has 1636 states and 2143 transitions. [2024-11-10 09:35:41,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (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) [2024-11-10 09:35:41,413 INFO L276 IsEmpty]: Start isEmpty. Operand 1636 states and 2143 transitions. [2024-11-10 09:35:41,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-10 09:35:41,414 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 09:35:41,414 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, 1, 1, 1, 1] [2024-11-10 09:35:41,414 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-10 09:35:41,414 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 09:35:41,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 09:35:41,415 INFO L85 PathProgramCache]: Analyzing trace with hash -1430039239, now seen corresponding path program 1 times [2024-11-10 09:35:41,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 09:35:41,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417418767] [2024-11-10 09:35:41,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 09:35:41,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 09:35:41,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:42,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 09:35:42,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:42,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-10 09:35:42,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:42,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-10 09:35:42,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:42,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-10 09:35:42,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:42,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-10 09:35:42,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:42,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-10 09:35:42,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:42,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-10 09:35:42,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:42,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-10 09:35:42,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:42,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-10 09:35:42,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:42,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-10 09:35:42,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:42,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-10 09:35:42,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:42,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-10 09:35:42,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:42,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-10 09:35:42,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:42,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-10 09:35:42,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:42,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-10 09:35:42,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:42,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-10 09:35:42,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:42,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-10 09:35:42,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:42,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-10 09:35:42,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:42,222 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-10 09:35:42,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 09:35:42,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417418767] [2024-11-10 09:35:42,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417418767] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 09:35:42,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 09:35:42,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-10 09:35:42,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047528004] [2024-11-10 09:35:42,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 09:35:42,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-10 09:35:42,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 09:35:42,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-10 09:35:42,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2024-11-10 09:35:42,225 INFO L87 Difference]: Start difference. First operand 1636 states and 2143 transitions. Second operand has 19 states, 17 states have (on average 3.411764705882353) internal successors, (58), 19 states have internal predecessors, (58), 7 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 7 states have call successors, (18) [2024-11-10 09:35:43,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 09:35:43,032 INFO L93 Difference]: Finished difference Result 3335 states and 4357 transitions. [2024-11-10 09:35:43,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-10 09:35:43,033 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 3.411764705882353) internal successors, (58), 19 states have internal predecessors, (58), 7 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 7 states have call successors, (18) Word has length 145 [2024-11-10 09:35:43,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 09:35:43,041 INFO L225 Difference]: With dead ends: 3335 [2024-11-10 09:35:43,041 INFO L226 Difference]: Without dead ends: 1702 [2024-11-10 09:35:43,046 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=181, Invalid=875, Unknown=0, NotChecked=0, Total=1056 [2024-11-10 09:35:43,047 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 595 mSDsluCounter, 947 mSDsCounter, 0 mSdLazyCounter, 726 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 595 SdHoareTripleChecker+Valid, 1075 SdHoareTripleChecker+Invalid, 760 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 726 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-10 09:35:43,047 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [595 Valid, 1075 Invalid, 760 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 726 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-10 09:35:43,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1702 states. [2024-11-10 09:35:43,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1702 to 1662. [2024-11-10 09:35:43,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1662 states, 1437 states have (on average 1.2372999304105776) internal successors, (1778), 1457 states have internal predecessors, (1778), 196 states have call successors, (196), 28 states have call predecessors, (196), 28 states have return successors, (196), 176 states have call predecessors, (196), 196 states have call successors, (196) [2024-11-10 09:35:43,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1662 states to 1662 states and 2170 transitions. [2024-11-10 09:35:43,129 INFO L78 Accepts]: Start accepts. Automaton has 1662 states and 2170 transitions. Word has length 145 [2024-11-10 09:35:43,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 09:35:43,129 INFO L471 AbstractCegarLoop]: Abstraction has 1662 states and 2170 transitions. [2024-11-10 09:35:43,130 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 3.411764705882353) internal successors, (58), 19 states have internal predecessors, (58), 7 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 7 states have call successors, (18) [2024-11-10 09:35:43,130 INFO L276 IsEmpty]: Start isEmpty. Operand 1662 states and 2170 transitions. [2024-11-10 09:35:43,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-10 09:35:43,131 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 09:35:43,131 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, 1, 1, 1, 1, 1] [2024-11-10 09:35:43,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-10 09:35:43,131 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 09:35:43,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 09:35:43,131 INFO L85 PathProgramCache]: Analyzing trace with hash 966042920, now seen corresponding path program 1 times [2024-11-10 09:35:43,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 09:35:43,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038048177] [2024-11-10 09:35:43,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 09:35:43,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 09:35:43,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:43,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 09:35:43,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:43,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-10 09:35:43,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:43,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-10 09:35:43,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:43,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-10 09:35:43,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:43,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-10 09:35:43,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:43,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-10 09:35:43,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:43,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-10 09:35:43,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:43,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-10 09:35:43,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:43,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-10 09:35:43,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:43,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-10 09:35:43,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:43,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-10 09:35:43,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:43,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-10 09:35:43,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:43,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-10 09:35:43,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:43,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-10 09:35:43,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:43,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-10 09:35:43,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:43,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-10 09:35:43,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:43,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-10 09:35:43,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:43,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-10 09:35:43,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:43,727 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-10 09:35:43,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 09:35:43,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038048177] [2024-11-10 09:35:43,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038048177] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 09:35:43,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 09:35:43,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-10 09:35:43,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092025864] [2024-11-10 09:35:43,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 09:35:43,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-10 09:35:43,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 09:35:43,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-10 09:35:43,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-11-10 09:35:43,730 INFO L87 Difference]: Start difference. First operand 1662 states and 2170 transitions. Second operand has 13 states, 11 states have (on average 5.363636363636363) internal successors, (59), 12 states have internal predecessors, (59), 6 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 6 states have call successors, (18) [2024-11-10 09:35:44,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 09:35:44,329 INFO L93 Difference]: Finished difference Result 3361 states and 4378 transitions. [2024-11-10 09:35:44,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-10 09:35:44,329 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 5.363636363636363) internal successors, (59), 12 states have internal predecessors, (59), 6 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 6 states have call successors, (18) Word has length 146 [2024-11-10 09:35:44,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 09:35:44,336 INFO L225 Difference]: With dead ends: 3361 [2024-11-10 09:35:44,336 INFO L226 Difference]: Without dead ends: 1702 [2024-11-10 09:35:44,339 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=120, Invalid=386, Unknown=0, NotChecked=0, Total=506 [2024-11-10 09:35:44,339 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 533 mSDsluCounter, 846 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 533 SdHoareTripleChecker+Valid, 1011 SdHoareTripleChecker+Invalid, 609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-10 09:35:44,339 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [533 Valid, 1011 Invalid, 609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [143 Valid, 466 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-10 09:35:44,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1702 states. [2024-11-10 09:35:44,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1702 to 1515. [2024-11-10 09:35:44,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1515 states, 1319 states have (on average 1.2357846853677028) internal successors, (1630), 1334 states have internal predecessors, (1630), 170 states have call successors, (170), 25 states have call predecessors, (170), 25 states have return successors, (170), 155 states have call predecessors, (170), 170 states have call successors, (170) [2024-11-10 09:35:44,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1515 states to 1515 states and 1970 transitions. [2024-11-10 09:35:44,460 INFO L78 Accepts]: Start accepts. Automaton has 1515 states and 1970 transitions. Word has length 146 [2024-11-10 09:35:44,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 09:35:44,461 INFO L471 AbstractCegarLoop]: Abstraction has 1515 states and 1970 transitions. [2024-11-10 09:35:44,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 5.363636363636363) internal successors, (59), 12 states have internal predecessors, (59), 6 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 6 states have call successors, (18) [2024-11-10 09:35:44,461 INFO L276 IsEmpty]: Start isEmpty. Operand 1515 states and 1970 transitions. [2024-11-10 09:35:44,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-10 09:35:44,462 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 09:35:44,462 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, 1, 1, 1, 1, 1] [2024-11-10 09:35:44,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-10 09:35:44,462 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 09:35:44,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 09:35:44,463 INFO L85 PathProgramCache]: Analyzing trace with hash -37413484, now seen corresponding path program 1 times [2024-11-10 09:35:44,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 09:35:44,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652846727] [2024-11-10 09:35:44,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 09:35:44,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 09:35:44,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:44,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 09:35:44,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:44,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-10 09:35:44,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:44,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-10 09:35:44,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:44,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-10 09:35:44,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:44,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-10 09:35:44,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:44,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-10 09:35:44,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:44,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-10 09:35:44,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:44,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-10 09:35:44,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:44,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-10 09:35:44,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:44,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-10 09:35:44,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:44,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-10 09:35:44,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:44,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-10 09:35:44,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:44,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-10 09:35:44,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:44,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-10 09:35:44,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:44,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-10 09:35:44,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:44,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-10 09:35:44,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:44,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-10 09:35:44,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:44,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-10 09:35:44,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:44,627 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-10 09:35:44,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 09:35:44,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652846727] [2024-11-10 09:35:44,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652846727] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 09:35:44,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 09:35:44,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 09:35:44,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146975492] [2024-11-10 09:35:44,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 09:35:44,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 09:35:44,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 09:35:44,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 09:35:44,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 09:35:44,629 INFO L87 Difference]: Start difference. First operand 1515 states and 1970 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 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) [2024-11-10 09:35:44,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 09:35:44,794 INFO L93 Difference]: Finished difference Result 2507 states and 3263 transitions. [2024-11-10 09:35:44,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 09:35:44,795 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 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 146 [2024-11-10 09:35:44,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 09:35:44,801 INFO L225 Difference]: With dead ends: 2507 [2024-11-10 09:35:44,801 INFO L226 Difference]: Without dead ends: 1508 [2024-11-10 09:35:44,803 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 [2024-11-10 09:35:44,804 INFO L432 NwaCegarLoop]: 210 mSDtfsCounter, 75 mSDsluCounter, 509 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 719 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 09:35:44,804 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 719 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 09:35:44,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1508 states. [2024-11-10 09:35:44,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1508 to 1503. [2024-11-10 09:35:44,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1503 states, 1301 states have (on average 1.2282859338970022) internal successors, (1598), 1316 states have internal predecessors, (1598), 174 states have call successors, (174), 27 states have call predecessors, (174), 27 states have return successors, (174), 159 states have call predecessors, (174), 174 states have call successors, (174) [2024-11-10 09:35:44,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1503 states to 1503 states and 1946 transitions. [2024-11-10 09:35:44,886 INFO L78 Accepts]: Start accepts. Automaton has 1503 states and 1946 transitions. Word has length 146 [2024-11-10 09:35:44,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 09:35:44,887 INFO L471 AbstractCegarLoop]: Abstraction has 1503 states and 1946 transitions. [2024-11-10 09:35:44,887 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 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) [2024-11-10 09:35:44,887 INFO L276 IsEmpty]: Start isEmpty. Operand 1503 states and 1946 transitions. [2024-11-10 09:35:44,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-10 09:35:44,888 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 09:35:44,888 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, 1, 1, 1, 1, 1] [2024-11-10 09:35:44,888 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-10 09:35:44,888 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 09:35:44,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 09:35:44,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1995564104, now seen corresponding path program 1 times [2024-11-10 09:35:44,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 09:35:44,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922244172] [2024-11-10 09:35:44,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 09:35:44,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 09:35:44,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:45,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 09:35:45,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:45,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-10 09:35:45,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:45,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-10 09:35:45,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:45,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-10 09:35:45,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:45,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-10 09:35:45,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:45,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-10 09:35:45,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:45,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-10 09:35:45,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:45,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-10 09:35:45,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:45,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-10 09:35:45,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:45,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-10 09:35:45,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:45,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-10 09:35:45,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:45,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-10 09:35:45,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:45,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-10 09:35:45,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:45,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-10 09:35:45,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:45,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-10 09:35:45,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:45,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-10 09:35:45,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:45,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-10 09:35:45,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:45,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-10 09:35:45,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:45,227 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-10 09:35:45,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 09:35:45,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922244172] [2024-11-10 09:35:45,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922244172] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 09:35:45,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 09:35:45,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-10 09:35:45,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114990102] [2024-11-10 09:35:45,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 09:35:45,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-10 09:35:45,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 09:35:45,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-10 09:35:45,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-10 09:35:45,229 INFO L87 Difference]: Start difference. First operand 1503 states and 1946 transitions. Second operand has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 8 states have internal predecessors, (59), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-10 09:35:45,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 09:35:45,581 INFO L93 Difference]: Finished difference Result 3118 states and 4035 transitions. [2024-11-10 09:35:45,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 09:35:45,582 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 8 states have internal predecessors, (59), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 146 [2024-11-10 09:35:45,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 09:35:45,587 INFO L225 Difference]: With dead ends: 3118 [2024-11-10 09:35:45,588 INFO L226 Difference]: Without dead ends: 1618 [2024-11-10 09:35:45,590 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-11-10 09:35:45,590 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 254 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 550 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 09:35:45,591 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [254 Valid, 550 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 09:35:45,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1618 states. [2024-11-10 09:35:45,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1618 to 1477. [2024-11-10 09:35:45,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1477 states, 1275 states have (on average 1.2219607843137255) internal successors, (1558), 1290 states have internal predecessors, (1558), 174 states have call successors, (174), 27 states have call predecessors, (174), 27 states have return successors, (174), 159 states have call predecessors, (174), 174 states have call successors, (174) [2024-11-10 09:35:45,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1477 states to 1477 states and 1906 transitions. [2024-11-10 09:35:45,672 INFO L78 Accepts]: Start accepts. Automaton has 1477 states and 1906 transitions. Word has length 146 [2024-11-10 09:35:45,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 09:35:45,672 INFO L471 AbstractCegarLoop]: Abstraction has 1477 states and 1906 transitions. [2024-11-10 09:35:45,673 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 8 states have internal predecessors, (59), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-10 09:35:45,673 INFO L276 IsEmpty]: Start isEmpty. Operand 1477 states and 1906 transitions. [2024-11-10 09:35:45,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-10 09:35:45,674 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 09:35:45,674 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, 1, 1, 1, 1, 1, 1] [2024-11-10 09:35:45,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-10 09:35:45,674 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 09:35:45,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 09:35:45,674 INFO L85 PathProgramCache]: Analyzing trace with hash 1440779880, now seen corresponding path program 1 times [2024-11-10 09:35:45,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 09:35:45,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838083113] [2024-11-10 09:35:45,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 09:35:45,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 09:35:45,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:45,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 09:35:45,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:45,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-10 09:35:45,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:45,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-10 09:35:45,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:45,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-10 09:35:45,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:45,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-10 09:35:45,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:45,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-10 09:35:45,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:45,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-10 09:35:45,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:45,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-10 09:35:45,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:45,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-10 09:35:46,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:46,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-10 09:35:46,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:46,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-10 09:35:46,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:46,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-10 09:35:46,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:46,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-10 09:35:46,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:46,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-10 09:35:46,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:46,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-10 09:35:46,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:46,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-10 09:35:46,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:46,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-10 09:35:46,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:46,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-10 09:35:46,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:46,015 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-10 09:35:46,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 09:35:46,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838083113] [2024-11-10 09:35:46,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838083113] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 09:35:46,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 09:35:46,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-10 09:35:46,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138287543] [2024-11-10 09:35:46,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 09:35:46,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 09:35:46,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 09:35:46,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 09:35:46,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-10 09:35:46,016 INFO L87 Difference]: Start difference. First operand 1477 states and 1906 transitions. Second operand has 9 states, 9 states have (on average 6.666666666666667) internal successors, (60), 9 states have internal predecessors, (60), 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) [2024-11-10 09:35:46,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 09:35:46,252 INFO L93 Difference]: Finished difference Result 3328 states and 4286 transitions. [2024-11-10 09:35:46,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-10 09:35:46,256 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.666666666666667) internal successors, (60), 9 states have internal predecessors, (60), 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 147 [2024-11-10 09:35:46,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 09:35:46,262 INFO L225 Difference]: With dead ends: 3328 [2024-11-10 09:35:46,263 INFO L226 Difference]: Without dead ends: 1854 [2024-11-10 09:35:46,265 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 [2024-11-10 09:35:46,266 INFO L432 NwaCegarLoop]: 189 mSDtfsCounter, 66 mSDsluCounter, 1179 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 1368 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 09:35:46,266 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 1368 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 09:35:46,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1854 states. [2024-11-10 09:35:46,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1854 to 1653. [2024-11-10 09:35:46,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1653 states, 1451 states have (on average 1.2232942798070296) internal successors, (1775), 1466 states have internal predecessors, (1775), 174 states have call successors, (174), 27 states have call predecessors, (174), 27 states have return successors, (174), 159 states have call predecessors, (174), 174 states have call successors, (174) [2024-11-10 09:35:46,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1653 states to 1653 states and 2123 transitions. [2024-11-10 09:35:46,367 INFO L78 Accepts]: Start accepts. Automaton has 1653 states and 2123 transitions. Word has length 147 [2024-11-10 09:35:46,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 09:35:46,368 INFO L471 AbstractCegarLoop]: Abstraction has 1653 states and 2123 transitions. [2024-11-10 09:35:46,368 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.666666666666667) internal successors, (60), 9 states have internal predecessors, (60), 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) [2024-11-10 09:35:46,368 INFO L276 IsEmpty]: Start isEmpty. Operand 1653 states and 2123 transitions. [2024-11-10 09:35:46,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-10 09:35:46,369 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 09:35:46,369 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, 1, 1, 1, 1, 1, 1] [2024-11-10 09:35:46,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-10 09:35:46,369 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 09:35:46,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 09:35:46,370 INFO L85 PathProgramCache]: Analyzing trace with hash 1373773127, now seen corresponding path program 1 times [2024-11-10 09:35:46,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 09:35:46,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991178624] [2024-11-10 09:35:46,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 09:35:46,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 09:35:46,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:46,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 09:35:46,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:46,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-10 09:35:46,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:46,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-10 09:35:46,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:46,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-10 09:35:46,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:46,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-10 09:35:46,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:46,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-10 09:35:46,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:46,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-10 09:35:46,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:46,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-10 09:35:46,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:46,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-10 09:35:46,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:46,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-10 09:35:46,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:46,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-10 09:35:46,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:46,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-10 09:35:46,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:46,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-10 09:35:46,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:46,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-10 09:35:46,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:46,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-10 09:35:46,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:46,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-10 09:35:46,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:46,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-10 09:35:46,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:46,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-10 09:35:46,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:46,506 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-10 09:35:46,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 09:35:46,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991178624] [2024-11-10 09:35:46,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991178624] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 09:35:46,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 09:35:46,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 09:35:46,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311952046] [2024-11-10 09:35:46,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 09:35:46,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 09:35:46,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 09:35:46,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 09:35:46,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 09:35:46,508 INFO L87 Difference]: Start difference. First operand 1653 states and 2123 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (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) [2024-11-10 09:35:46,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 09:35:46,673 INFO L93 Difference]: Finished difference Result 3455 states and 4429 transitions. [2024-11-10 09:35:46,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 09:35:46,673 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (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 147 [2024-11-10 09:35:46,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 09:35:46,684 INFO L225 Difference]: With dead ends: 3455 [2024-11-10 09:35:46,685 INFO L226 Difference]: Without dead ends: 1805 [2024-11-10 09:35:46,688 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 [2024-11-10 09:35:46,688 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 84 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 628 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 [2024-11-10 09:35:46,689 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 628 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 09:35:46,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1805 states. [2024-11-10 09:35:46,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1805 to 1798. [2024-11-10 09:35:46,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1798 states, 1555 states have (on average 1.209646302250804) internal successors, (1881), 1573 states have internal predecessors, (1881), 206 states have call successors, (206), 36 states have call predecessors, (206), 36 states have return successors, (206), 188 states have call predecessors, (206), 206 states have call successors, (206) [2024-11-10 09:35:46,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1798 states to 1798 states and 2293 transitions. [2024-11-10 09:35:46,793 INFO L78 Accepts]: Start accepts. Automaton has 1798 states and 2293 transitions. Word has length 147 [2024-11-10 09:35:46,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 09:35:46,797 INFO L471 AbstractCegarLoop]: Abstraction has 1798 states and 2293 transitions. [2024-11-10 09:35:46,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (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) [2024-11-10 09:35:46,798 INFO L276 IsEmpty]: Start isEmpty. Operand 1798 states and 2293 transitions. [2024-11-10 09:35:46,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-10 09:35:46,799 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 09:35:46,799 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, 1, 1, 1, 1, 1, 1] [2024-11-10 09:35:46,800 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-10 09:35:46,800 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 09:35:46,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 09:35:46,800 INFO L85 PathProgramCache]: Analyzing trace with hash 1278611058, now seen corresponding path program 1 times [2024-11-10 09:35:46,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 09:35:46,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528471883] [2024-11-10 09:35:46,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 09:35:46,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 09:35:46,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:47,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 09:35:47,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:47,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-10 09:35:47,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:47,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-10 09:35:47,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:47,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-10 09:35:47,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:47,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-10 09:35:47,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:47,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-10 09:35:47,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:47,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-10 09:35:47,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:47,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-10 09:35:47,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:47,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-10 09:35:47,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:47,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-10 09:35:47,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:47,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-10 09:35:47,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:47,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-10 09:35:47,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:47,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-10 09:35:47,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:47,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-10 09:35:47,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:47,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-10 09:35:47,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:47,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-10 09:35:47,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:47,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-10 09:35:47,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:47,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-10 09:35:47,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:47,608 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-10 09:35:47,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 09:35:47,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528471883] [2024-11-10 09:35:47,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528471883] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 09:35:47,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 09:35:47,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-11-10 09:35:47,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896518254] [2024-11-10 09:35:47,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 09:35:47,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-10 09:35:47,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 09:35:47,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-10 09:35:47,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=319, Unknown=0, NotChecked=0, Total=380 [2024-11-10 09:35:47,610 INFO L87 Difference]: Start difference. First operand 1798 states and 2293 transitions. Second operand has 20 states, 17 states have (on average 3.5294117647058822) internal successors, (60), 19 states have internal predecessors, (60), 8 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 6 states have call predecessors, (18), 8 states have call successors, (18) [2024-11-10 09:35:48,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 09:35:48,594 INFO L93 Difference]: Finished difference Result 3696 states and 4679 transitions. [2024-11-10 09:35:48,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-10 09:35:48,597 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 17 states have (on average 3.5294117647058822) internal successors, (60), 19 states have internal predecessors, (60), 8 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 6 states have call predecessors, (18), 8 states have call successors, (18) Word has length 147 [2024-11-10 09:35:48,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 09:35:48,606 INFO L225 Difference]: With dead ends: 3696 [2024-11-10 09:35:48,606 INFO L226 Difference]: Without dead ends: 1901 [2024-11-10 09:35:48,609 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=242, Invalid=1090, Unknown=0, NotChecked=0, Total=1332 [2024-11-10 09:35:48,610 INFO L432 NwaCegarLoop]: 101 mSDtfsCounter, 605 mSDsluCounter, 732 mSDsCounter, 0 mSdLazyCounter, 831 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 605 SdHoareTripleChecker+Valid, 833 SdHoareTripleChecker+Invalid, 922 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 831 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-10 09:35:48,610 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [605 Valid, 833 Invalid, 922 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 831 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-10 09:35:48,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1901 states. [2024-11-10 09:35:48,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1901 to 1824. [2024-11-10 09:35:48,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1824 states, 1558 states have (on average 1.1887034659820281) internal successors, (1852), 1576 states have internal predecessors, (1852), 220 states have call successors, (220), 45 states have call predecessors, (220), 45 states have return successors, (220), 202 states have call predecessors, (220), 220 states have call successors, (220) [2024-11-10 09:35:48,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1824 states to 1824 states and 2292 transitions. [2024-11-10 09:35:48,809 INFO L78 Accepts]: Start accepts. Automaton has 1824 states and 2292 transitions. Word has length 147 [2024-11-10 09:35:48,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 09:35:48,810 INFO L471 AbstractCegarLoop]: Abstraction has 1824 states and 2292 transitions. [2024-11-10 09:35:48,810 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 17 states have (on average 3.5294117647058822) internal successors, (60), 19 states have internal predecessors, (60), 8 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 6 states have call predecessors, (18), 8 states have call successors, (18) [2024-11-10 09:35:48,810 INFO L276 IsEmpty]: Start isEmpty. Operand 1824 states and 2292 transitions. [2024-11-10 09:35:48,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-10 09:35:48,811 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 09:35:48,811 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, 1, 1, 1, 1, 1, 1] [2024-11-10 09:35:48,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-10 09:35:48,812 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 09:35:48,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 09:35:48,812 INFO L85 PathProgramCache]: Analyzing trace with hash 1017813922, now seen corresponding path program 1 times [2024-11-10 09:35:48,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 09:35:48,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15659018] [2024-11-10 09:35:48,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 09:35:48,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 09:35:48,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:49,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 09:35:49,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:49,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-10 09:35:49,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:49,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-10 09:35:49,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:49,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-10 09:35:49,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:49,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-10 09:35:49,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:49,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-10 09:35:49,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:49,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-10 09:35:49,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:49,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-10 09:35:49,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:49,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-10 09:35:49,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:49,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-10 09:35:49,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:49,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-10 09:35:49,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:49,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-10 09:35:49,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:49,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-10 09:35:49,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:49,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-10 09:35:49,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:49,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-10 09:35:49,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:49,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-10 09:35:49,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:49,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-10 09:35:49,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:49,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-10 09:35:49,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:49,240 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-10 09:35:49,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 09:35:49,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15659018] [2024-11-10 09:35:49,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15659018] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 09:35:49,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 09:35:49,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-10 09:35:49,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105671291] [2024-11-10 09:35:49,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 09:35:49,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 09:35:49,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 09:35:49,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 09:35:49,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-10 09:35:49,242 INFO L87 Difference]: Start difference. First operand 1824 states and 2292 transitions. Second operand has 9 states, 8 states have (on average 7.5) internal successors, (60), 9 states have internal predecessors, (60), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-10 09:35:49,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 09:35:49,644 INFO L93 Difference]: Finished difference Result 3644 states and 4570 transitions. [2024-11-10 09:35:49,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 09:35:49,645 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.5) internal successors, (60), 9 states have internal predecessors, (60), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 147 [2024-11-10 09:35:49,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 09:35:49,651 INFO L225 Difference]: With dead ends: 3644 [2024-11-10 09:35:49,651 INFO L226 Difference]: Without dead ends: 1823 [2024-11-10 09:35:49,655 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2024-11-10 09:35:49,655 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 212 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 09:35:49,655 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 473 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 09:35:49,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1823 states. [2024-11-10 09:35:49,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1823 to 1756. [2024-11-10 09:35:49,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1756 states, 1502 states have (on average 1.18508655126498) internal successors, (1780), 1518 states have internal predecessors, (1780), 208 states have call successors, (208), 45 states have call predecessors, (208), 45 states have return successors, (208), 192 states have call predecessors, (208), 208 states have call successors, (208) [2024-11-10 09:35:49,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1756 states to 1756 states and 2196 transitions. [2024-11-10 09:35:49,779 INFO L78 Accepts]: Start accepts. Automaton has 1756 states and 2196 transitions. Word has length 147 [2024-11-10 09:35:49,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 09:35:49,779 INFO L471 AbstractCegarLoop]: Abstraction has 1756 states and 2196 transitions. [2024-11-10 09:35:49,780 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.5) internal successors, (60), 9 states have internal predecessors, (60), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-10 09:35:49,780 INFO L276 IsEmpty]: Start isEmpty. Operand 1756 states and 2196 transitions. [2024-11-10 09:35:49,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-10 09:35:49,781 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 09:35:49,781 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 09:35:49,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-10 09:35:49,782 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 09:35:49,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 09:35:49,782 INFO L85 PathProgramCache]: Analyzing trace with hash -1312911275, now seen corresponding path program 1 times [2024-11-10 09:35:49,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 09:35:49,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484256462] [2024-11-10 09:35:49,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 09:35:49,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 09:35:49,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:50,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 09:35:50,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:50,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-10 09:35:50,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:50,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-10 09:35:50,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:50,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-10 09:35:50,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:50,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-10 09:35:50,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:50,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-10 09:35:50,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:50,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-10 09:35:51,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:51,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-10 09:35:51,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:51,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-10 09:35:51,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:51,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-10 09:35:51,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:51,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-10 09:35:51,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:51,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-10 09:35:51,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:51,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-10 09:35:51,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:51,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-10 09:35:51,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:51,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-10 09:35:51,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:51,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-10 09:35:51,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:51,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-10 09:35:51,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:51,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-10 09:35:51,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:51,028 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-10 09:35:51,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 09:35:51,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484256462] [2024-11-10 09:35:51,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484256462] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 09:35:51,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 09:35:51,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2024-11-10 09:35:51,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297325258] [2024-11-10 09:35:51,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 09:35:51,029 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-10 09:35:51,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 09:35:51,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-10 09:35:51,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=573, Unknown=0, NotChecked=0, Total=650 [2024-11-10 09:35:51,031 INFO L87 Difference]: Start difference. First operand 1756 states and 2196 transitions. Second operand has 26 states, 24 states have (on average 2.5833333333333335) internal successors, (62), 25 states have internal predecessors, (62), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-10 09:35:52,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 09:35:52,666 INFO L93 Difference]: Finished difference Result 2008 states and 2479 transitions. [2024-11-10 09:35:52,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-11-10 09:35:52,667 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 24 states have (on average 2.5833333333333335) internal successors, (62), 25 states have internal predecessors, (62), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 5 states have call successors, (18) Word has length 149 [2024-11-10 09:35:52,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 09:35:52,673 INFO L225 Difference]: With dead ends: 2008 [2024-11-10 09:35:52,673 INFO L226 Difference]: Without dead ends: 2005 [2024-11-10 09:35:52,675 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 869 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=520, Invalid=3386, Unknown=0, NotChecked=0, Total=3906 [2024-11-10 09:35:52,676 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 671 mSDsluCounter, 1576 mSDsCounter, 0 mSdLazyCounter, 1268 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 671 SdHoareTripleChecker+Valid, 1694 SdHoareTripleChecker+Invalid, 1328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 1268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-10 09:35:52,676 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [671 Valid, 1694 Invalid, 1328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 1268 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-10 09:35:52,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2005 states. [2024-11-10 09:35:52,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2005 to 1834. [2024-11-10 09:35:52,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1834 states, 1580 states have (on average 1.178481012658228) internal successors, (1862), 1596 states have internal predecessors, (1862), 208 states have call successors, (208), 45 states have call predecessors, (208), 45 states have return successors, (208), 192 states have call predecessors, (208), 208 states have call successors, (208) [2024-11-10 09:35:52,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1834 states to 1834 states and 2278 transitions. [2024-11-10 09:35:52,813 INFO L78 Accepts]: Start accepts. Automaton has 1834 states and 2278 transitions. Word has length 149 [2024-11-10 09:35:52,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 09:35:52,814 INFO L471 AbstractCegarLoop]: Abstraction has 1834 states and 2278 transitions. [2024-11-10 09:35:52,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 24 states have (on average 2.5833333333333335) internal successors, (62), 25 states have internal predecessors, (62), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-10 09:35:52,814 INFO L276 IsEmpty]: Start isEmpty. Operand 1834 states and 2278 transitions. [2024-11-10 09:35:52,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-10 09:35:52,816 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 09:35:52,816 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 09:35:52,816 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-10 09:35:52,816 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 09:35:52,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 09:35:52,817 INFO L85 PathProgramCache]: Analyzing trace with hash 1937425489, now seen corresponding path program 1 times [2024-11-10 09:35:52,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 09:35:52,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147747291] [2024-11-10 09:35:52,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 09:35:52,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 09:35:52,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:54,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 09:35:54,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:54,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-10 09:35:54,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:54,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-10 09:35:54,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:54,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-10 09:35:54,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:54,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-10 09:35:54,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:54,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-10 09:35:54,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:54,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-10 09:35:54,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:54,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-10 09:35:54,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:54,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-10 09:35:54,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:54,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-10 09:35:54,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:54,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-10 09:35:54,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:54,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-10 09:35:54,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:54,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-10 09:35:54,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:54,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-10 09:35:54,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:54,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-10 09:35:54,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:54,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-10 09:35:54,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:54,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-10 09:35:54,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:54,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-10 09:35:54,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:54,307 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-10 09:35:54,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 09:35:54,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147747291] [2024-11-10 09:35:54,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147747291] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 09:35:54,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 09:35:54,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2024-11-10 09:35:54,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875130322] [2024-11-10 09:35:54,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 09:35:54,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-10 09:35:54,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 09:35:54,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-10 09:35:54,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=466, Unknown=0, NotChecked=0, Total=552 [2024-11-10 09:35:54,309 INFO L87 Difference]: Start difference. First operand 1834 states and 2278 transitions. Second operand has 24 states, 21 states have (on average 2.9523809523809526) internal successors, (62), 23 states have internal predecessors, (62), 8 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 6 states have call predecessors, (18), 8 states have call successors, (18) [2024-11-10 09:35:55,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 09:35:55,940 INFO L93 Difference]: Finished difference Result 4306 states and 5284 transitions. [2024-11-10 09:35:55,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-10 09:35:55,940 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 21 states have (on average 2.9523809523809526) internal successors, (62), 23 states have internal predecessors, (62), 8 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 6 states have call predecessors, (18), 8 states have call successors, (18) Word has length 149 [2024-11-10 09:35:55,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 09:35:55,954 INFO L225 Difference]: With dead ends: 4306 [2024-11-10 09:35:55,954 INFO L226 Difference]: Without dead ends: 2475 [2024-11-10 09:35:55,960 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 404 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=329, Invalid=1651, Unknown=0, NotChecked=0, Total=1980 [2024-11-10 09:35:55,960 INFO L432 NwaCegarLoop]: 125 mSDtfsCounter, 623 mSDsluCounter, 1497 mSDsCounter, 0 mSdLazyCounter, 1394 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 623 SdHoareTripleChecker+Valid, 1622 SdHoareTripleChecker+Invalid, 1468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 1394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-10 09:35:55,961 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [623 Valid, 1622 Invalid, 1468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 1394 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-10 09:35:55,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2475 states. [2024-11-10 09:35:56,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2475 to 2188. [2024-11-10 09:35:56,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2188 states, 1934 states have (on average 1.1690796277145812) internal successors, (2261), 1950 states have internal predecessors, (2261), 208 states have call successors, (208), 45 states have call predecessors, (208), 45 states have return successors, (208), 192 states have call predecessors, (208), 208 states have call successors, (208) [2024-11-10 09:35:56,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2188 states to 2188 states and 2677 transitions. [2024-11-10 09:35:56,070 INFO L78 Accepts]: Start accepts. Automaton has 2188 states and 2677 transitions. Word has length 149 [2024-11-10 09:35:56,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 09:35:56,070 INFO L471 AbstractCegarLoop]: Abstraction has 2188 states and 2677 transitions. [2024-11-10 09:35:56,071 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 21 states have (on average 2.9523809523809526) internal successors, (62), 23 states have internal predecessors, (62), 8 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 6 states have call predecessors, (18), 8 states have call successors, (18) [2024-11-10 09:35:56,071 INFO L276 IsEmpty]: Start isEmpty. Operand 2188 states and 2677 transitions. [2024-11-10 09:35:56,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-10 09:35:56,072 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 09:35:56,072 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 09:35:56,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-10 09:35:56,073 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 09:35:56,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 09:35:56,073 INFO L85 PathProgramCache]: Analyzing trace with hash -1379918028, now seen corresponding path program 1 times [2024-11-10 09:35:56,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 09:35:56,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700018674] [2024-11-10 09:35:56,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 09:35:56,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 09:35:56,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:56,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 09:35:56,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:56,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-10 09:35:56,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:56,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-10 09:35:56,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:56,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-10 09:35:56,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:56,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-10 09:35:56,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:56,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-10 09:35:56,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:56,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-10 09:35:56,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:56,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-10 09:35:56,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:56,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-10 09:35:56,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:56,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-10 09:35:56,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:56,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-10 09:35:56,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:56,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-10 09:35:56,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:56,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-10 09:35:56,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:56,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-10 09:35:56,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:56,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-10 09:35:56,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:56,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-10 09:35:56,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:56,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-10 09:35:56,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:56,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-10 09:35:56,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:56,229 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-10 09:35:56,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 09:35:56,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700018674] [2024-11-10 09:35:56,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700018674] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 09:35:56,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 09:35:56,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 09:35:56,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044487775] [2024-11-10 09:35:56,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 09:35:56,231 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 09:35:56,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 09:35:56,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 09:35:56,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 09:35:56,231 INFO L87 Difference]: Start difference. First operand 2188 states and 2677 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 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) [2024-11-10 09:35:56,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 09:35:56,451 INFO L93 Difference]: Finished difference Result 5342 states and 6502 transitions. [2024-11-10 09:35:56,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 09:35:56,452 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 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 149 [2024-11-10 09:35:56,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 09:35:56,459 INFO L225 Difference]: With dead ends: 5342 [2024-11-10 09:35:56,459 INFO L226 Difference]: Without dead ends: 3157 [2024-11-10 09:35:56,464 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 [2024-11-10 09:35:56,464 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 62 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 09:35:56,464 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 583 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 09:35:56,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3157 states. [2024-11-10 09:35:56,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3157 to 2586. [2024-11-10 09:35:56,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2586 states, 2306 states have (on average 1.1613183000867302) internal successors, (2678), 2324 states have internal predecessors, (2678), 228 states have call successors, (228), 51 states have call predecessors, (228), 51 states have return successors, (228), 210 states have call predecessors, (228), 228 states have call successors, (228) [2024-11-10 09:35:56,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2586 states to 2586 states and 3134 transitions. [2024-11-10 09:35:56,591 INFO L78 Accepts]: Start accepts. Automaton has 2586 states and 3134 transitions. Word has length 149 [2024-11-10 09:35:56,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 09:35:56,591 INFO L471 AbstractCegarLoop]: Abstraction has 2586 states and 3134 transitions. [2024-11-10 09:35:56,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 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) [2024-11-10 09:35:56,592 INFO L276 IsEmpty]: Start isEmpty. Operand 2586 states and 3134 transitions. [2024-11-10 09:35:56,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-10 09:35:56,593 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 09:35:56,593 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 09:35:56,593 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-10 09:35:56,593 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 09:35:56,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 09:35:56,594 INFO L85 PathProgramCache]: Analyzing trace with hash -1763639324, now seen corresponding path program 1 times [2024-11-10 09:35:56,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 09:35:56,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811865730] [2024-11-10 09:35:56,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 09:35:56,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 09:35:56,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:57,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 09:35:57,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:57,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-10 09:35:57,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:57,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-10 09:35:57,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:57,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-10 09:35:57,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:57,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-10 09:35:57,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:57,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-10 09:35:57,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:57,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-10 09:35:57,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:57,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-10 09:35:57,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:57,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-10 09:35:57,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:57,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-10 09:35:57,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:57,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-10 09:35:57,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:57,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-10 09:35:57,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:57,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-10 09:35:57,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:57,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-10 09:35:57,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:57,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-10 09:35:57,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:57,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-10 09:35:57,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:57,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-10 09:35:57,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:57,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-10 09:35:57,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:35:57,299 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-10 09:35:57,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 09:35:57,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811865730] [2024-11-10 09:35:57,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811865730] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 09:35:57,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 09:35:57,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-10 09:35:57,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967271562] [2024-11-10 09:35:57,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 09:35:57,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-10 09:35:57,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 09:35:57,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-10 09:35:57,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2024-11-10 09:35:57,300 INFO L87 Difference]: Start difference. First operand 2586 states and 3134 transitions. Second operand has 16 states, 14 states have (on average 4.5) internal successors, (63), 16 states have internal predecessors, (63), 6 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 6 states have call successors, (18) [2024-11-10 09:35:58,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 09:35:58,325 INFO L93 Difference]: Finished difference Result 5839 states and 7068 transitions. [2024-11-10 09:35:58,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-10 09:35:58,326 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 4.5) internal successors, (63), 16 states have internal predecessors, (63), 6 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 6 states have call successors, (18) Word has length 150 [2024-11-10 09:35:58,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 09:35:58,334 INFO L225 Difference]: With dead ends: 5839 [2024-11-10 09:35:58,334 INFO L226 Difference]: Without dead ends: 3256 [2024-11-10 09:35:58,338 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=216, Invalid=840, Unknown=0, NotChecked=0, Total=1056 [2024-11-10 09:35:58,339 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 512 mSDsluCounter, 1007 mSDsCounter, 0 mSdLazyCounter, 755 mSolverCounterSat, 154 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 512 SdHoareTripleChecker+Valid, 1151 SdHoareTripleChecker+Invalid, 909 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 154 IncrementalHoareTripleChecker+Valid, 755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-10 09:35:58,339 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [512 Valid, 1151 Invalid, 909 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [154 Valid, 755 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-10 09:35:58,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3256 states. [2024-11-10 09:35:58,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3256 to 3164. [2024-11-10 09:35:58,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3164 states, 2800 states have (on average 1.1589285714285715) internal successors, (3245), 2822 states have internal predecessors, (3245), 294 states have call successors, (294), 69 states have call predecessors, (294), 69 states have return successors, (294), 272 states have call predecessors, (294), 294 states have call successors, (294) [2024-11-10 09:35:58,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3164 states to 3164 states and 3833 transitions. [2024-11-10 09:35:58,509 INFO L78 Accepts]: Start accepts. Automaton has 3164 states and 3833 transitions. Word has length 150 [2024-11-10 09:35:58,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 09:35:58,509 INFO L471 AbstractCegarLoop]: Abstraction has 3164 states and 3833 transitions. [2024-11-10 09:35:58,509 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 4.5) internal successors, (63), 16 states have internal predecessors, (63), 6 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 6 states have call successors, (18) [2024-11-10 09:35:58,510 INFO L276 IsEmpty]: Start isEmpty. Operand 3164 states and 3833 transitions. [2024-11-10 09:35:58,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-10 09:35:58,511 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 09:35:58,511 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 09:35:58,511 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-10 09:35:58,511 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 09:35:58,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 09:35:58,512 INFO L85 PathProgramCache]: Analyzing trace with hash 1486697440, now seen corresponding path program 1 times [2024-11-10 09:35:58,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 09:35:58,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148930212] [2024-11-10 09:35:58,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 09:35:58,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 09:35:58,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat