./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-59.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d 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-s_file-59.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 6c385b852b90f82574c09ce3a5a40d3e4c1ceeeb1354f53e9c25575a34d805b6 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 18:46:27,490 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 18:46:27,542 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 18:46:27,545 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 18:46:27,546 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 18:46:27,560 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 18:46:27,560 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 18:46:27,560 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 18:46:27,561 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 18:46:27,561 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 18:46:27,561 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 18:46:27,562 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 18:46:27,562 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 18:46:27,562 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 18:46:27,563 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 18:46:27,563 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 18:46:27,563 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 18:46:27,563 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 18:46:27,564 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 18:46:27,564 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 18:46:27,564 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 18:46:27,565 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 18:46:27,565 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 18:46:27,565 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 18:46:27,565 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 18:46:27,565 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 18:46:27,566 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 18:46:27,566 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 18:46:27,566 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 18:46:27,566 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 18:46:27,566 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 18:46:27,567 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 18:46:27,567 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 18:46:27,567 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 18:46:27,567 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 18:46:27,567 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 18:46:27,568 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 18:46:27,568 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 18:46:27,568 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 18:46:27,568 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 18:46:27,568 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 18:46:27,570 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 18:46:27,570 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6c385b852b90f82574c09ce3a5a40d3e4c1ceeeb1354f53e9c25575a34d805b6 [2024-11-16 18:46:27,778 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 18:46:27,797 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 18:46:27,800 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 18:46:27,801 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 18:46:27,801 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 18:46:27,802 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-59.i [2024-11-16 18:46:28,985 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 18:46:29,152 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 18:46:29,154 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-59.i [2024-11-16 18:46:29,161 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae5fba9c2/ef852789791a4c80b8cb5d0be41250d0/FLAG45cc154bf [2024-11-16 18:46:29,566 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae5fba9c2/ef852789791a4c80b8cb5d0be41250d0 [2024-11-16 18:46:29,567 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 18:46:29,568 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 18:46:29,570 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 18:46:29,570 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 18:46:29,574 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 18:46:29,574 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 06:46:29" (1/1) ... [2024-11-16 18:46:29,575 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a7fc13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:46:29, skipping insertion in model container [2024-11-16 18:46:29,575 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 06:46:29" (1/1) ... [2024-11-16 18:46:29,594 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 18:46:29,722 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-s_file-59.i[916,929] [2024-11-16 18:46:29,765 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 18:46:29,773 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 18:46:29,781 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-s_file-59.i[916,929] [2024-11-16 18:46:29,803 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 18:46:29,824 INFO L204 MainTranslator]: Completed translation [2024-11-16 18:46:29,825 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:46:29 WrapperNode [2024-11-16 18:46:29,825 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 18:46:29,825 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 18:46:29,826 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 18:46:29,826 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 18:46:29,830 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:46:29" (1/1) ... [2024-11-16 18:46:29,844 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:46:29" (1/1) ... [2024-11-16 18:46:29,870 INFO L138 Inliner]: procedures = 27, calls = 126, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 344 [2024-11-16 18:46:29,870 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 18:46:29,871 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 18:46:29,871 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 18:46:29,871 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 18:46:29,880 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:46:29" (1/1) ... [2024-11-16 18:46:29,880 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:46:29" (1/1) ... [2024-11-16 18:46:29,884 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:46:29" (1/1) ... [2024-11-16 18:46:29,902 INFO L175 MemorySlicer]: Split 97 memory accesses to 2 slices as follows [2, 95]. 98 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 29 writes are split as follows [0, 29]. [2024-11-16 18:46:29,902 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:46:29" (1/1) ... [2024-11-16 18:46:29,902 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:46:29" (1/1) ... [2024-11-16 18:46:29,911 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:46:29" (1/1) ... [2024-11-16 18:46:29,913 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:46:29" (1/1) ... [2024-11-16 18:46:29,914 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:46:29" (1/1) ... [2024-11-16 18:46:29,931 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:46:29" (1/1) ... [2024-11-16 18:46:29,933 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 18:46:29,934 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 18:46:29,934 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 18:46:29,934 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 18:46:29,935 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:46:29" (1/1) ... [2024-11-16 18:46:29,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 18:46:29,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 18:46:29,977 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) [2024-11-16 18:46:29,979 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 [2024-11-16 18:46:30,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 18:46:30,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-16 18:46:30,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-16 18:46:30,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-16 18:46:30,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-16 18:46:30,018 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-16 18:46:30,018 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-16 18:46:30,018 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-16 18:46:30,019 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-16 18:46:30,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 18:46:30,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-16 18:46:30,019 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 18:46:30,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 18:46:30,130 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 18:46:30,131 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 18:46:30,355 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L116: havoc property_#t~mem55#1;havoc property_#t~ite57#1;havoc property_#t~mem56#1;havoc property_#t~ite65#1;havoc property_#t~mem61#1;havoc property_#t~mem58#1;havoc property_#t~mem59#1;havoc property_#t~mem60#1;havoc property_#t~mem64#1;havoc property_#t~mem62#1;havoc property_#t~mem63#1;havoc property_#t~mem66#1;havoc property_#t~mem67#1;havoc property_#t~ite78#1;havoc property_#t~mem68#1;havoc property_#t~ite75#1;havoc property_#t~mem72#1;havoc property_#t~mem69#1;havoc property_#t~mem70#1;havoc property_#t~mem71#1;havoc property_#t~mem74#1;havoc property_#t~mem73#1;havoc property_#t~mem77#1;havoc property_#t~mem76#1;havoc property_#t~short79#1;havoc property_#t~ite89#1;havoc property_#t~mem82#1;havoc property_#t~mem80#1;havoc property_#t~mem81#1;havoc property_#t~mem83#1;havoc property_#t~mem84#1;havoc property_#t~short85#1;havoc property_#t~ite88#1;havoc property_#t~ite87#1;havoc property_#t~mem86#1;havoc property_#t~short90#1; [2024-11-16 18:46:30,391 INFO L? ?]: Removed 56 outVars from TransFormulas that were not future-live. [2024-11-16 18:46:30,391 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 18:46:30,402 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 18:46:30,403 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 18:46:30,403 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 06:46:30 BoogieIcfgContainer [2024-11-16 18:46:30,403 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 18:46:30,405 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 18:46:30,405 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 18:46:30,408 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 18:46:30,409 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 06:46:29" (1/3) ... [2024-11-16 18:46:30,409 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7073c5ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 06:46:30, skipping insertion in model container [2024-11-16 18:46:30,409 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:46:29" (2/3) ... [2024-11-16 18:46:30,409 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7073c5ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 06:46:30, skipping insertion in model container [2024-11-16 18:46:30,410 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 06:46:30" (3/3) ... [2024-11-16 18:46:30,410 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-59.i [2024-11-16 18:46:30,421 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 18:46:30,421 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 18:46:30,465 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 18:46:30,470 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;@661262ff, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 18:46:30,470 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 18:46:30,473 INFO L276 IsEmpty]: Start isEmpty. Operand has 87 states, 66 states have (on average 1.3484848484848484) internal successors, (89), 67 states have internal predecessors, (89), 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) [2024-11-16 18:46:30,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-16 18:46:30,484 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:46:30,485 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] [2024-11-16 18:46:30,485 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:46:30,488 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:46:30,489 INFO L85 PathProgramCache]: Analyzing trace with hash 282118537, now seen corresponding path program 1 times [2024-11-16 18:46:30,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:46:30,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220056491] [2024-11-16 18:46:30,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:46:30,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:46:30,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:30,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:46:30,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:30,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:46:30,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:30,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:46:30,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:30,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:46:30,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:30,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:46:30,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:30,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:46:30,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:30,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:46:30,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:30,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:46:30,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:30,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:46:30,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:30,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:46:30,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:30,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:46:30,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:30,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:46:30,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:30,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:46:30,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:30,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:46:30,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:30,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 18:46:30,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:30,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-16 18:46:30,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:30,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-16 18:46:30,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:30,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-16 18:46:30,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:30,797 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-16 18:46:30,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:46:30,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220056491] [2024-11-16 18:46:30,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220056491] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:46:30,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:46:30,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 18:46:30,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022659446] [2024-11-16 18:46:30,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:46:30,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 18:46:30,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:46:30,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 18:46:30,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 18:46:30,825 INFO L87 Difference]: Start difference. First operand has 87 states, 66 states have (on average 1.3484848484848484) internal successors, (89), 67 states have internal predecessors, (89), 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 23.0) internal successors, (46), 2 states have internal predecessors, (46), 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) [2024-11-16 18:46:30,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:46:30,853 INFO L93 Difference]: Finished difference Result 166 states and 261 transitions. [2024-11-16 18:46:30,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 18:46:30,855 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 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 133 [2024-11-16 18:46:30,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:46:30,861 INFO L225 Difference]: With dead ends: 166 [2024-11-16 18:46:30,861 INFO L226 Difference]: Without dead ends: 82 [2024-11-16 18:46:30,863 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 [2024-11-16 18:46:30,865 INFO L432 NwaCegarLoop]: 117 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, 117 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 [2024-11-16 18:46:30,866 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 18:46:30,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2024-11-16 18:46:30,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2024-11-16 18:46:30,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 62 states have (on average 1.3064516129032258) internal successors, (81), 62 states have internal predecessors, (81), 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) [2024-11-16 18:46:30,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 117 transitions. [2024-11-16 18:46:30,894 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 117 transitions. Word has length 133 [2024-11-16 18:46:30,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:46:30,894 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 117 transitions. [2024-11-16 18:46:30,894 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 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) [2024-11-16 18:46:30,895 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 117 transitions. [2024-11-16 18:46:30,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-16 18:46:30,896 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:46:30,897 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] [2024-11-16 18:46:30,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 18:46:30,897 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:46:30,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:46:30,897 INFO L85 PathProgramCache]: Analyzing trace with hash 119769435, now seen corresponding path program 1 times [2024-11-16 18:46:30,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:46:30,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123587197] [2024-11-16 18:46:30,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:46:30,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:46:30,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:31,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:46:31,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:31,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:46:31,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:31,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:46:31,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:31,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:46:31,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:31,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:46:31,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:31,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:46:31,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:31,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:46:31,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:31,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:46:31,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:31,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:46:31,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:31,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:46:31,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:31,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:46:31,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:31,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:46:31,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:31,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:46:31,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:31,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:46:31,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:31,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 18:46:31,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:31,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-16 18:46:31,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:31,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-16 18:46:31,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:31,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-16 18:46:31,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:31,696 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-16 18:46:31,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:46:31,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123587197] [2024-11-16 18:46:31,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123587197] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:46:31,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:46:31,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 18:46:31,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503164391] [2024-11-16 18:46:31,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:46:31,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 18:46:31,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:46:31,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 18:46:31,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 18:46:31,701 INFO L87 Difference]: Start difference. First operand 82 states and 117 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 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) [2024-11-16 18:46:31,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:46:31,964 INFO L93 Difference]: Finished difference Result 242 states and 347 transitions. [2024-11-16 18:46:31,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 18:46:31,964 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 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 133 [2024-11-16 18:46:31,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:46:31,967 INFO L225 Difference]: With dead ends: 242 [2024-11-16 18:46:31,968 INFO L226 Difference]: Without dead ends: 163 [2024-11-16 18:46:31,969 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 18:46:31,970 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 79 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 18:46:31,971 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 241 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 18:46:31,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2024-11-16 18:46:31,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 151. [2024-11-16 18:46:31,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 112 states have (on average 1.2946428571428572) internal successors, (145), 112 states have internal predecessors, (145), 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) [2024-11-16 18:46:32,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 217 transitions. [2024-11-16 18:46:32,002 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 217 transitions. Word has length 133 [2024-11-16 18:46:32,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:46:32,002 INFO L471 AbstractCegarLoop]: Abstraction has 151 states and 217 transitions. [2024-11-16 18:46:32,002 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 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) [2024-11-16 18:46:32,002 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 217 transitions. [2024-11-16 18:46:32,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-16 18:46:32,004 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:46:32,004 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:46:32,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 18:46:32,004 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:46:32,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:46:32,005 INFO L85 PathProgramCache]: Analyzing trace with hash -401579371, now seen corresponding path program 1 times [2024-11-16 18:46:32,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:46:32,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636703944] [2024-11-16 18:46:32,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:46:32,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:46:32,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:32,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:46:32,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:32,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:46:32,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:32,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:46:32,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:32,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:46:32,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:32,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:46:32,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:32,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:46:32,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:32,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:46:32,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:32,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:46:32,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:32,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:46:32,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:32,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:46:32,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:32,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:46:32,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:32,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:46:32,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:32,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:46:32,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:32,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:46:32,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:32,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 18:46:32,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:32,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-16 18:46:32,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:32,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-16 18:46:32,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:32,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-16 18:46:32,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:32,680 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-16 18:46:32,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:46:32,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636703944] [2024-11-16 18:46:32,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636703944] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:46:32,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:46:32,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 18:46:32,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877263747] [2024-11-16 18:46:32,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:46:32,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 18:46:32,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:46:32,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 18:46:32,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 18:46:32,683 INFO L87 Difference]: Start difference. First operand 151 states and 217 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 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) [2024-11-16 18:46:32,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:46:32,897 INFO L93 Difference]: Finished difference Result 325 states and 470 transitions. [2024-11-16 18:46:32,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 18:46:32,898 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 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 135 [2024-11-16 18:46:32,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:46:32,900 INFO L225 Difference]: With dead ends: 325 [2024-11-16 18:46:32,901 INFO L226 Difference]: Without dead ends: 230 [2024-11-16 18:46:32,902 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 18:46:32,903 INFO L432 NwaCegarLoop]: 74 mSDtfsCounter, 61 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 18:46:32,903 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 176 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 18:46:32,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2024-11-16 18:46:32,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 227. [2024-11-16 18:46:32,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 169 states have (on average 1.2958579881656804) internal successors, (219), 169 states have internal predecessors, (219), 54 states have call successors, (54), 3 states have call predecessors, (54), 3 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-16 18:46:32,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 327 transitions. [2024-11-16 18:46:32,937 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 327 transitions. Word has length 135 [2024-11-16 18:46:32,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:46:32,937 INFO L471 AbstractCegarLoop]: Abstraction has 227 states and 327 transitions. [2024-11-16 18:46:32,937 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 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) [2024-11-16 18:46:32,937 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 327 transitions. [2024-11-16 18:46:32,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-16 18:46:32,939 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:46:32,939 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:46:32,939 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 18:46:32,939 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:46:32,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:46:32,940 INFO L85 PathProgramCache]: Analyzing trace with hash -907137996, now seen corresponding path program 1 times [2024-11-16 18:46:32,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:46:32,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544880313] [2024-11-16 18:46:32,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:46:32,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:46:32,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:33,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:46:33,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:33,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:46:33,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:33,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:46:33,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:33,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:46:33,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:33,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:46:33,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:33,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:46:33,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:33,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:46:33,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:33,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:46:33,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:33,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:46:33,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:33,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:46:33,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:33,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:46:33,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:33,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:46:33,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:33,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:46:33,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:33,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:46:33,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:33,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 18:46:33,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:33,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-16 18:46:33,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:33,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-16 18:46:33,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:33,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-16 18:46:33,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:33,593 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-16 18:46:33,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:46:33,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544880313] [2024-11-16 18:46:33,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544880313] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:46:33,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:46:33,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 18:46:33,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325120985] [2024-11-16 18:46:33,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:46:33,594 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 18:46:33,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:46:33,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 18:46:33,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 18:46:33,595 INFO L87 Difference]: Start difference. First operand 227 states and 327 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 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) [2024-11-16 18:46:33,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:46:33,725 INFO L93 Difference]: Finished difference Result 398 states and 574 transitions. [2024-11-16 18:46:33,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 18:46:33,726 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 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 135 [2024-11-16 18:46:33,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:46:33,728 INFO L225 Difference]: With dead ends: 398 [2024-11-16 18:46:33,728 INFO L226 Difference]: Without dead ends: 230 [2024-11-16 18:46:33,729 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 18:46:33,730 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 59 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 18:46:33,730 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 216 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 18:46:33,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2024-11-16 18:46:33,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 227. [2024-11-16 18:46:33,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 169 states have (on average 1.2840236686390532) internal successors, (217), 169 states have internal predecessors, (217), 54 states have call successors, (54), 3 states have call predecessors, (54), 3 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-16 18:46:33,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 325 transitions. [2024-11-16 18:46:33,751 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 325 transitions. Word has length 135 [2024-11-16 18:46:33,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:46:33,752 INFO L471 AbstractCegarLoop]: Abstraction has 227 states and 325 transitions. [2024-11-16 18:46:33,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 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) [2024-11-16 18:46:33,752 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 325 transitions. [2024-11-16 18:46:33,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-16 18:46:33,755 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:46:33,756 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:46:33,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 18:46:33,756 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:46:33,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:46:33,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1590877941, now seen corresponding path program 1 times [2024-11-16 18:46:33,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:46:33,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946696006] [2024-11-16 18:46:33,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:46:33,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:46:33,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:34,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:46:34,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:34,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:46:34,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:34,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:46:34,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:34,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:46:34,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:34,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:46:34,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:34,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:46:34,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:34,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:46:34,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:34,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:46:34,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:34,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:46:34,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:34,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:46:34,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:34,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:46:34,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:34,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:46:34,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:34,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:46:34,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:34,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:46:34,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:34,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 18:46:34,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:34,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-16 18:46:34,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:34,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-16 18:46:34,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:34,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-16 18:46:34,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:34,884 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-16 18:46:34,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:46:34,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946696006] [2024-11-16 18:46:34,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946696006] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:46:34,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:46:34,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 18:46:34,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788059460] [2024-11-16 18:46:34,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:46:34,886 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 18:46:34,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:46:34,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 18:46:34,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-16 18:46:34,889 INFO L87 Difference]: Start difference. First operand 227 states and 325 transitions. Second operand has 8 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 1 states have call successors, (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) [2024-11-16 18:46:35,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:46:35,230 INFO L93 Difference]: Finished difference Result 468 states and 666 transitions. [2024-11-16 18:46:35,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 18:46:35,231 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 1 states have call successors, (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 135 [2024-11-16 18:46:35,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:46:35,233 INFO L225 Difference]: With dead ends: 468 [2024-11-16 18:46:35,233 INFO L226 Difference]: Without dead ends: 307 [2024-11-16 18:46:35,233 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2024-11-16 18:46:35,234 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 135 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 18:46:35,234 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 388 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 18:46:35,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2024-11-16 18:46:35,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 242. [2024-11-16 18:46:35,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 184 states have (on average 1.2826086956521738) internal successors, (236), 184 states have internal predecessors, (236), 54 states have call successors, (54), 3 states have call predecessors, (54), 3 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-16 18:46:35,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 344 transitions. [2024-11-16 18:46:35,249 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 344 transitions. Word has length 135 [2024-11-16 18:46:35,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:46:35,250 INFO L471 AbstractCegarLoop]: Abstraction has 242 states and 344 transitions. [2024-11-16 18:46:35,250 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 1 states have call successors, (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) [2024-11-16 18:46:35,250 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 344 transitions. [2024-11-16 18:46:35,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-16 18:46:35,252 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:46:35,252 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:46:35,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 18:46:35,253 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:46:35,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:46:35,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1394364436, now seen corresponding path program 1 times [2024-11-16 18:46:35,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:46:35,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217902438] [2024-11-16 18:46:35,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:46:35,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:46:35,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:35,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:46:35,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:35,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:46:35,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:35,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:46:35,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:35,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:46:35,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:35,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:46:35,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:35,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:46:35,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:35,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:46:35,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:35,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:46:35,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:35,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:46:35,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:35,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:46:35,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:35,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:46:35,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:35,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:46:35,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:35,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:46:35,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:35,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:46:35,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:35,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 18:46:35,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:35,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-16 18:46:35,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:35,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-16 18:46:35,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:35,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-16 18:46:35,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:35,467 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-16 18:46:35,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:46:35,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217902438] [2024-11-16 18:46:35,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217902438] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:46:35,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:46:35,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 18:46:35,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846904296] [2024-11-16 18:46:35,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:46:35,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 18:46:35,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:46:35,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 18:46:35,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 18:46:35,468 INFO L87 Difference]: Start difference. First operand 242 states and 344 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 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) [2024-11-16 18:46:35,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:46:35,656 INFO L93 Difference]: Finished difference Result 431 states and 611 transitions. [2024-11-16 18:46:35,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 18:46:35,657 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 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 135 [2024-11-16 18:46:35,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:46:35,658 INFO L225 Difference]: With dead ends: 431 [2024-11-16 18:46:35,659 INFO L226 Difference]: Without dead ends: 254 [2024-11-16 18:46:35,659 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-16 18:46:35,660 INFO L432 NwaCegarLoop]: 86 mSDtfsCounter, 68 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 18:46:35,660 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 298 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 18:46:35,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2024-11-16 18:46:35,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 242. [2024-11-16 18:46:35,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 184 states have (on average 1.2717391304347827) internal successors, (234), 184 states have internal predecessors, (234), 54 states have call successors, (54), 3 states have call predecessors, (54), 3 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-16 18:46:35,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 342 transitions. [2024-11-16 18:46:35,675 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 342 transitions. Word has length 135 [2024-11-16 18:46:35,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:46:35,676 INFO L471 AbstractCegarLoop]: Abstraction has 242 states and 342 transitions. [2024-11-16 18:46:35,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 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) [2024-11-16 18:46:35,676 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 342 transitions. [2024-11-16 18:46:35,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-16 18:46:35,677 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:46:35,677 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:46:35,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 18:46:35,677 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:46:35,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:46:35,678 INFO L85 PathProgramCache]: Analyzing trace with hash 1297474934, now seen corresponding path program 1 times [2024-11-16 18:46:35,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:46:35,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499415773] [2024-11-16 18:46:35,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:46:35,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:46:35,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:35,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:46:35,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:35,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:46:35,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:35,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:46:35,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:35,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:46:35,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:35,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:46:35,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:35,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:46:35,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:35,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:46:35,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:35,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:46:35,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:35,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:46:35,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:35,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:46:35,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:35,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:46:35,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:35,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:46:35,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:35,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:46:35,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:35,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:46:35,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:35,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 18:46:35,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:35,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-16 18:46:35,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:35,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-16 18:46:35,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:35,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-16 18:46:35,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:35,952 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-16 18:46:35,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:46:35,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499415773] [2024-11-16 18:46:35,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499415773] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:46:35,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:46:35,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 18:46:35,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365389778] [2024-11-16 18:46:35,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:46:35,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 18:46:35,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:46:35,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 18:46:35,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 18:46:35,954 INFO L87 Difference]: Start difference. First operand 242 states and 342 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 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) [2024-11-16 18:46:36,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:46:36,150 INFO L93 Difference]: Finished difference Result 429 states and 606 transitions. [2024-11-16 18:46:36,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 18:46:36,151 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 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 135 [2024-11-16 18:46:36,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:46:36,152 INFO L225 Difference]: With dead ends: 429 [2024-11-16 18:46:36,152 INFO L226 Difference]: Without dead ends: 249 [2024-11-16 18:46:36,153 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-16 18:46:36,153 INFO L432 NwaCegarLoop]: 87 mSDtfsCounter, 69 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 18:46:36,154 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 299 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 18:46:36,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2024-11-16 18:46:36,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 237. [2024-11-16 18:46:36,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 179 states have (on average 1.2681564245810055) internal successors, (227), 179 states have internal predecessors, (227), 54 states have call successors, (54), 3 states have call predecessors, (54), 3 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-16 18:46:36,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 335 transitions. [2024-11-16 18:46:36,169 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 335 transitions. Word has length 135 [2024-11-16 18:46:36,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:46:36,170 INFO L471 AbstractCegarLoop]: Abstraction has 237 states and 335 transitions. [2024-11-16 18:46:36,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 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) [2024-11-16 18:46:36,170 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 335 transitions. [2024-11-16 18:46:36,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-16 18:46:36,171 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:46:36,171 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:46:36,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 18:46:36,171 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:46:36,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:46:36,172 INFO L85 PathProgramCache]: Analyzing trace with hash 1255611131, now seen corresponding path program 1 times [2024-11-16 18:46:36,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:46:36,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813746510] [2024-11-16 18:46:36,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:46:36,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:46:36,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:36,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:46:36,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:36,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:46:36,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:36,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:46:36,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:36,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:46:36,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:36,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:46:36,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:36,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:46:36,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:36,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:46:36,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:36,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:46:36,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:36,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:46:36,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:36,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:46:36,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:36,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:46:36,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:36,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:46:36,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:36,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:46:36,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:36,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:46:36,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:36,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 18:46:36,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:36,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-16 18:46:36,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:36,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-16 18:46:36,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:36,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-16 18:46:36,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:36,400 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-16 18:46:36,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:46:36,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813746510] [2024-11-16 18:46:36,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813746510] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:46:36,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:46:36,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 18:46:36,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873681196] [2024-11-16 18:46:36,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:46:36,401 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 18:46:36,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:46:36,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 18:46:36,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 18:46:36,401 INFO L87 Difference]: Start difference. First operand 237 states and 335 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-16 18:46:36,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:46:36,548 INFO L93 Difference]: Finished difference Result 538 states and 756 transitions. [2024-11-16 18:46:36,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 18:46:36,549 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 137 [2024-11-16 18:46:36,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:46:36,550 INFO L225 Difference]: With dead ends: 538 [2024-11-16 18:46:36,551 INFO L226 Difference]: Without dead ends: 373 [2024-11-16 18:46:36,551 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-16 18:46:36,552 INFO L432 NwaCegarLoop]: 125 mSDtfsCounter, 59 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 18:46:36,552 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 553 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 18:46:36,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2024-11-16 18:46:36,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 368. [2024-11-16 18:46:36,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 292 states have (on average 1.273972602739726) internal successors, (372), 294 states have internal predecessors, (372), 70 states have call successors, (70), 5 states have call predecessors, (70), 5 states have return successors, (70), 68 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-16 18:46:36,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 512 transitions. [2024-11-16 18:46:36,569 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 512 transitions. Word has length 137 [2024-11-16 18:46:36,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:46:36,570 INFO L471 AbstractCegarLoop]: Abstraction has 368 states and 512 transitions. [2024-11-16 18:46:36,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-16 18:46:36,570 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 512 transitions. [2024-11-16 18:46:36,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-16 18:46:36,571 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:46:36,571 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:46:36,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 18:46:36,571 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:46:36,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:46:36,571 INFO L85 PathProgramCache]: Analyzing trace with hash -1043216860, now seen corresponding path program 1 times [2024-11-16 18:46:36,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:46:36,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557322862] [2024-11-16 18:46:36,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:46:36,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:46:36,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-16 18:46:36,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1721966363] [2024-11-16 18:46:36,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:46:36,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 18:46:36,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 18:46:36,649 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 18:46:36,650 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 18:46:36,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:36,792 INFO L255 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-16 18:46:36,802 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 18:46:36,846 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 64 [2024-11-16 18:46:37,027 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 77 [2024-11-16 18:46:37,113 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-16 18:46:37,156 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-16 18:46:37,197 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-16 18:46:37,236 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-16 18:46:37,274 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-16 18:46:37,314 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-16 18:46:37,355 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-16 18:46:37,392 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-16 18:46:37,586 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 18:46:37,586 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 25 [2024-11-16 18:46:37,650 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 18:46:37,651 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 25 [2024-11-16 18:46:37,750 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 18:46:37,751 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 13 [2024-11-16 18:46:37,845 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-16 18:46:37,845 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 18:46:37,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:46:37,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557322862] [2024-11-16 18:46:37,846 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-16 18:46:37,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1721966363] [2024-11-16 18:46:37,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1721966363] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:46:37,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:46:37,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 18:46:37,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665377] [2024-11-16 18:46:37,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:46:37,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 18:46:37,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:46:37,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 18:46:37,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-16 18:46:37,847 INFO L87 Difference]: Start difference. First operand 368 states and 512 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-16 18:46:39,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:46:39,482 INFO L93 Difference]: Finished difference Result 674 states and 934 transitions. [2024-11-16 18:46:39,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 18:46:39,483 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 138 [2024-11-16 18:46:39,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:46:39,485 INFO L225 Difference]: With dead ends: 674 [2024-11-16 18:46:39,486 INFO L226 Difference]: Without dead ends: 392 [2024-11-16 18:46:39,486 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-16 18:46:39,488 INFO L432 NwaCegarLoop]: 125 mSDtfsCounter, 68 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-16 18:46:39,488 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 471 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-16 18:46:39,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2024-11-16 18:46:39,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 368. [2024-11-16 18:46:39,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 292 states have (on average 1.2705479452054795) internal successors, (371), 294 states have internal predecessors, (371), 70 states have call successors, (70), 5 states have call predecessors, (70), 5 states have return successors, (70), 68 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-16 18:46:39,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 511 transitions. [2024-11-16 18:46:39,509 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 511 transitions. Word has length 138 [2024-11-16 18:46:39,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:46:39,511 INFO L471 AbstractCegarLoop]: Abstraction has 368 states and 511 transitions. [2024-11-16 18:46:39,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-16 18:46:39,511 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 511 transitions. [2024-11-16 18:46:39,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-16 18:46:39,512 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:46:39,512 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] [2024-11-16 18:46:39,526 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-16 18:46:39,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 18:46:39,714 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:46:39,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:46:39,714 INFO L85 PathProgramCache]: Analyzing trace with hash 837534520, now seen corresponding path program 1 times [2024-11-16 18:46:39,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:46:39,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800955321] [2024-11-16 18:46:39,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:46:39,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:46:39,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:40,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:46:40,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:40,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:46:40,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:40,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:46:40,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:40,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:46:40,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:40,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:46:40,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:40,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:46:40,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:40,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:46:40,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:40,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:46:40,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:40,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:46:40,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:40,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:46:40,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:40,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:46:40,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:40,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:46:40,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:40,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:46:40,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:40,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:46:40,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:40,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 18:46:40,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:40,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-16 18:46:40,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:40,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-16 18:46:40,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:40,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-16 18:46:40,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:40,316 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 6 proven. 45 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-11-16 18:46:40,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:46:40,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800955321] [2024-11-16 18:46:40,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800955321] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 18:46:40,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [831983358] [2024-11-16 18:46:40,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:46:40,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 18:46:40,317 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 18:46:40,318 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 18:46:40,319 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-16 18:46:40,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:40,436 INFO L255 TraceCheckSpWp]: Trace formula consists of 402 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-16 18:46:40,441 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 18:46:40,447 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 42 [2024-11-16 18:46:40,494 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 46 [2024-11-16 18:46:40,631 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-16 18:46:40,678 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-16 18:46:40,732 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-16 18:46:40,781 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-16 18:46:40,832 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-16 18:46:40,887 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-16 18:46:40,934 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-16 18:46:41,024 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 18:46:41,024 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 25 [2024-11-16 18:46:41,069 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 18:46:41,069 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 34 treesize of output 28 [2024-11-16 18:46:41,114 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 18:46:41,114 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 26 treesize of output 10 [2024-11-16 18:46:41,128 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 141 proven. 45 refuted. 0 times theorem prover too weak. 426 trivial. 0 not checked. [2024-11-16 18:46:41,128 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 18:46:41,375 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2024-11-16 18:46:41,425 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 6 proven. 45 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-11-16 18:46:41,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [831983358] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 18:46:41,425 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 18:46:41,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 24 [2024-11-16 18:46:41,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482819406] [2024-11-16 18:46:41,426 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 18:46:41,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-16 18:46:41,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:46:41,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-16 18:46:41,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=457, Unknown=0, NotChecked=0, Total=552 [2024-11-16 18:46:41,428 INFO L87 Difference]: Start difference. First operand 368 states and 511 transitions. Second operand has 24 states, 21 states have (on average 7.0) internal successors, (147), 24 states have internal predecessors, (147), 9 states have call successors, (54), 3 states have call predecessors, (54), 6 states have return successors, (54), 6 states have call predecessors, (54), 9 states have call successors, (54) [2024-11-16 18:46:42,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:46:42,312 INFO L93 Difference]: Finished difference Result 693 states and 954 transitions. [2024-11-16 18:46:42,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-16 18:46:42,314 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 21 states have (on average 7.0) internal successors, (147), 24 states have internal predecessors, (147), 9 states have call successors, (54), 3 states have call predecessors, (54), 6 states have return successors, (54), 6 states have call predecessors, (54), 9 states have call successors, (54) Word has length 139 [2024-11-16 18:46:42,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:46:42,315 INFO L225 Difference]: With dead ends: 693 [2024-11-16 18:46:42,317 INFO L226 Difference]: Without dead ends: 402 [2024-11-16 18:46:42,318 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 345 GetRequests, 308 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 266 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=313, Invalid=1169, Unknown=0, NotChecked=0, Total=1482 [2024-11-16 18:46:42,319 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 275 mSDsluCounter, 603 mSDsCounter, 0 mSdLazyCounter, 1109 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 664 SdHoareTripleChecker+Invalid, 1226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 1109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 18:46:42,319 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 664 Invalid, 1226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 1109 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 18:46:42,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2024-11-16 18:46:42,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 372. [2024-11-16 18:46:42,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 295 states have (on average 1.2610169491525425) internal successors, (372), 297 states have internal predecessors, (372), 70 states have call successors, (70), 6 states have call predecessors, (70), 6 states have return successors, (70), 68 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-16 18:46:42,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 512 transitions. [2024-11-16 18:46:42,337 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 512 transitions. Word has length 139 [2024-11-16 18:46:42,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:46:42,337 INFO L471 AbstractCegarLoop]: Abstraction has 372 states and 512 transitions. [2024-11-16 18:46:42,338 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 21 states have (on average 7.0) internal successors, (147), 24 states have internal predecessors, (147), 9 states have call successors, (54), 3 states have call predecessors, (54), 6 states have return successors, (54), 6 states have call predecessors, (54), 9 states have call successors, (54) [2024-11-16 18:46:42,338 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 512 transitions. [2024-11-16 18:46:42,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-16 18:46:42,339 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:46:42,339 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] [2024-11-16 18:46:42,351 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-16 18:46:42,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-16 18:46:42,543 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:46:42,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:46:42,543 INFO L85 PathProgramCache]: Analyzing trace with hash 1034048025, now seen corresponding path program 1 times [2024-11-16 18:46:42,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:46:42,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36990997] [2024-11-16 18:46:42,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:46:42,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:46:42,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-16 18:46:42,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1580224557] [2024-11-16 18:46:42,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:46:42,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 18:46:42,598 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 18:46:42,601 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 18:46:42,602 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-16 18:46:42,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:42,728 INFO L255 TraceCheckSpWp]: Trace formula consists of 406 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-16 18:46:42,735 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 18:46:42,740 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 64 [2024-11-16 18:46:42,870 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 77 [2024-11-16 18:46:42,942 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-16 18:46:42,977 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-16 18:46:43,003 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-16 18:46:43,029 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-16 18:46:43,061 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-16 18:46:43,090 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-16 18:46:43,120 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-16 18:46:43,150 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-16 18:46:43,237 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 18:46:43,237 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 38 treesize of output 43 [2024-11-16 18:46:43,347 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 18:46:43,348 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 46 [2024-11-16 18:46:43,418 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 18:46:43,419 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 52 treesize of output 16 [2024-11-16 18:46:43,477 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-16 18:46:43,477 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 18:46:43,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:46:43,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36990997] [2024-11-16 18:46:43,477 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-16 18:46:43,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1580224557] [2024-11-16 18:46:43,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1580224557] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:46:43,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:46:43,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 18:46:43,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010870519] [2024-11-16 18:46:43,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:46:43,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 18:46:43,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:46:43,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 18:46:43,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-16 18:46:43,478 INFO L87 Difference]: Start difference. First operand 372 states and 512 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 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) [2024-11-16 18:46:44,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:46:44,726 INFO L93 Difference]: Finished difference Result 675 states and 930 transitions. [2024-11-16 18:46:44,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 18:46:44,727 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 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 [2024-11-16 18:46:44,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:46:44,728 INFO L225 Difference]: With dead ends: 675 [2024-11-16 18:46:44,729 INFO L226 Difference]: Without dead ends: 391 [2024-11-16 18:46:44,729 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-16 18:46:44,729 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 64 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-16 18:46:44,730 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 411 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-16 18:46:44,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2024-11-16 18:46:44,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 367. [2024-11-16 18:46:44,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 367 states, 290 states have (on average 1.2586206896551724) internal successors, (365), 292 states have internal predecessors, (365), 70 states have call successors, (70), 6 states have call predecessors, (70), 6 states have return successors, (70), 68 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-16 18:46:44,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 505 transitions. [2024-11-16 18:46:44,744 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 505 transitions. Word has length 139 [2024-11-16 18:46:44,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:46:44,745 INFO L471 AbstractCegarLoop]: Abstraction has 367 states and 505 transitions. [2024-11-16 18:46:44,745 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 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) [2024-11-16 18:46:44,745 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 505 transitions. [2024-11-16 18:46:44,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-16 18:46:44,746 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:46:44,746 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:46:44,759 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-16 18:46:44,946 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 18:46:44,947 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:46:44,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:46:44,947 INFO L85 PathProgramCache]: Analyzing trace with hash -526461182, now seen corresponding path program 1 times [2024-11-16 18:46:44,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:46:44,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984504974] [2024-11-16 18:46:44,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:46:44,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:46:45,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:46,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:46:46,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:46,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:46:46,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:46,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:46:46,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:46,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:46:46,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:46,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:46:46,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:46,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:46:46,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:46,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:46:46,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:46,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:46:46,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:46,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:46:46,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:46,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:46:46,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:46,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:46:46,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:46,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:46:46,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:46,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:46:46,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:46,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:46:46,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:46,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 18:46:46,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:46,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-16 18:46:46,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:46,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-16 18:46:46,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:46,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-16 18:46:46,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:46,088 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-16 18:46:46,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:46:46,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984504974] [2024-11-16 18:46:46,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984504974] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:46:46,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:46:46,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 18:46:46,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239520400] [2024-11-16 18:46:46,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:46:46,089 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 18:46:46,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:46:46,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 18:46:46,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-16 18:46:46,089 INFO L87 Difference]: Start difference. First operand 367 states and 505 transitions. Second operand has 9 states, 7 states have (on average 7.571428571428571) internal successors, (53), 9 states have internal predecessors, (53), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-16 18:46:46,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:46:46,490 INFO L93 Difference]: Finished difference Result 761 states and 1049 transitions. [2024-11-16 18:46:46,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 18:46:46,490 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 7.571428571428571) internal successors, (53), 9 states have internal predecessors, (53), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) Word has length 140 [2024-11-16 18:46:46,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:46:46,492 INFO L225 Difference]: With dead ends: 761 [2024-11-16 18:46:46,492 INFO L226 Difference]: Without dead ends: 486 [2024-11-16 18:46:46,494 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-16 18:46:46,494 INFO L432 NwaCegarLoop]: 143 mSDtfsCounter, 49 mSDsluCounter, 779 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 922 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 18:46:46,494 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 922 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 395 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 18:46:46,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2024-11-16 18:46:46,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 481. [2024-11-16 18:46:46,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 394 states have (on average 1.263959390862944) internal successors, (498), 398 states have internal predecessors, (498), 78 states have call successors, (78), 8 states have call predecessors, (78), 8 states have return successors, (78), 74 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-16 18:46:46,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 654 transitions. [2024-11-16 18:46:46,521 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 654 transitions. Word has length 140 [2024-11-16 18:46:46,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:46:46,521 INFO L471 AbstractCegarLoop]: Abstraction has 481 states and 654 transitions. [2024-11-16 18:46:46,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 7.571428571428571) internal successors, (53), 9 states have internal predecessors, (53), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-16 18:46:46,521 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 654 transitions. [2024-11-16 18:46:46,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-16 18:46:46,522 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:46:46,523 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:46:46,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 18:46:46,523 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:46:46,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:46:46,524 INFO L85 PathProgramCache]: Analyzing trace with hash -935285407, now seen corresponding path program 1 times [2024-11-16 18:46:46,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:46:46,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886917803] [2024-11-16 18:46:46,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:46:46,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:46:46,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:46,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:46:46,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:46,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:46:46,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:46,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:46:46,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:46,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:46:46,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:46,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:46:46,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:46,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:46:46,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:46,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:46:46,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:46,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:46:46,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:46,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:46:46,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:46,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:46:46,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:46,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:46:46,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:46,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:46:46,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:46,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:46:46,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:46,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:46:46,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:46,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 18:46:46,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:46,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-16 18:46:46,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:46,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-16 18:46:46,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:46,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-16 18:46:46,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:46,902 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-16 18:46:46,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:46:46,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886917803] [2024-11-16 18:46:46,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886917803] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:46:46,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:46:46,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 18:46:46,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809566289] [2024-11-16 18:46:46,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:46:46,903 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 18:46:46,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:46:46,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 18:46:46,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 18:46:46,903 INFO L87 Difference]: Start difference. First operand 481 states and 654 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-16 18:46:47,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:46:47,028 INFO L93 Difference]: Finished difference Result 855 states and 1173 transitions. [2024-11-16 18:46:47,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 18:46:47,028 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 140 [2024-11-16 18:46:47,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:46:47,030 INFO L225 Difference]: With dead ends: 855 [2024-11-16 18:46:47,030 INFO L226 Difference]: Without dead ends: 466 [2024-11-16 18:46:47,030 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-16 18:46:47,031 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 31 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 18:46:47,031 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 417 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 18:46:47,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2024-11-16 18:46:47,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 463. [2024-11-16 18:46:47,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 463 states, 376 states have (on average 1.2606382978723405) internal successors, (474), 380 states have internal predecessors, (474), 78 states have call successors, (78), 8 states have call predecessors, (78), 8 states have return successors, (78), 74 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-16 18:46:47,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 630 transitions. [2024-11-16 18:46:47,049 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 630 transitions. Word has length 140 [2024-11-16 18:46:47,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:46:47,050 INFO L471 AbstractCegarLoop]: Abstraction has 463 states and 630 transitions. [2024-11-16 18:46:47,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-16 18:46:47,050 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 630 transitions. [2024-11-16 18:46:47,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-16 18:46:47,051 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:46:47,051 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] [2024-11-16 18:46:47,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 18:46:47,051 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:46:47,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:46:47,051 INFO L85 PathProgramCache]: Analyzing trace with hash -1805039579, now seen corresponding path program 1 times [2024-11-16 18:46:47,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:46:47,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102666553] [2024-11-16 18:46:47,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:46:47,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:46:47,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:47,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:46:47,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:47,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:46:47,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:47,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:46:47,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:47,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:46:47,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:47,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:46:47,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:47,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:46:47,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:47,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:46:47,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:47,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:46:47,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:47,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:46:47,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:47,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:46:47,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:47,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:46:47,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:47,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:46:47,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:47,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:46:47,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:47,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:46:47,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:47,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 18:46:47,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:47,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-16 18:46:47,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:47,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-16 18:46:47,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:47,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-16 18:46:47,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:47,194 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-16 18:46:47,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:46:47,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102666553] [2024-11-16 18:46:47,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102666553] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:46:47,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:46:47,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 18:46:47,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545086572] [2024-11-16 18:46:47,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:46:47,195 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 18:46:47,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:46:47,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 18:46:47,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 18:46:47,195 INFO L87 Difference]: Start difference. First operand 463 states and 630 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (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) [2024-11-16 18:46:47,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:46:47,228 INFO L93 Difference]: Finished difference Result 496 states and 668 transitions. [2024-11-16 18:46:47,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 18:46:47,228 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (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 142 [2024-11-16 18:46:47,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:46:47,230 INFO L225 Difference]: With dead ends: 496 [2024-11-16 18:46:47,230 INFO L226 Difference]: Without dead ends: 493 [2024-11-16 18:46:47,230 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 18:46:47,231 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 0 mSDsluCounter, 548 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 660 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 18:46:47,231 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 660 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 18:46:47,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2024-11-16 18:46:47,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 493. [2024-11-16 18:46:47,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 493 states, 406 states have (on average 1.2413793103448276) internal successors, (504), 410 states have internal predecessors, (504), 78 states have call successors, (78), 8 states have call predecessors, (78), 8 states have return successors, (78), 74 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-16 18:46:47,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 660 transitions. [2024-11-16 18:46:47,250 INFO L78 Accepts]: Start accepts. Automaton has 493 states and 660 transitions. Word has length 142 [2024-11-16 18:46:47,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:46:47,251 INFO L471 AbstractCegarLoop]: Abstraction has 493 states and 660 transitions. [2024-11-16 18:46:47,251 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (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) [2024-11-16 18:46:47,251 INFO L276 IsEmpty]: Start isEmpty. Operand 493 states and 660 transitions. [2024-11-16 18:46:47,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-16 18:46:47,252 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:46:47,252 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] [2024-11-16 18:46:47,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 18:46:47,252 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:46:47,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:46:47,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1379924218, now seen corresponding path program 1 times [2024-11-16 18:46:47,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:46:47,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263623773] [2024-11-16 18:46:47,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:46:47,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:46:47,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:47,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:46:47,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:47,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:46:47,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:47,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:46:47,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:47,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:46:47,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:47,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:46:47,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:47,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:46:47,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:47,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:46:47,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:47,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:46:47,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:47,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:46:47,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:47,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:46:47,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:47,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:46:47,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:47,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:46:47,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:47,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:46:47,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:47,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:46:47,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:47,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 18:46:47,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:47,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-16 18:46:47,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:47,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-16 18:46:47,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:47,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-16 18:46:47,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:47,415 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-16 18:46:47,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:46:47,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263623773] [2024-11-16 18:46:47,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263623773] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:46:47,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:46:47,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 18:46:47,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709691900] [2024-11-16 18:46:47,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:46:47,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 18:46:47,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:46:47,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 18:46:47,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 18:46:47,418 INFO L87 Difference]: Start difference. First operand 493 states and 660 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 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) [2024-11-16 18:46:47,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:46:47,464 INFO L93 Difference]: Finished difference Result 532 states and 704 transitions. [2024-11-16 18:46:47,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 18:46:47,465 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 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 [2024-11-16 18:46:47,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:46:47,467 INFO L225 Difference]: With dead ends: 532 [2024-11-16 18:46:47,467 INFO L226 Difference]: Without dead ends: 529 [2024-11-16 18:46:47,467 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 18:46:47,468 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 0 mSDsluCounter, 652 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 763 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 18:46:47,468 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 763 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 18:46:47,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2024-11-16 18:46:47,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 499. [2024-11-16 18:46:47,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 499 states, 412 states have (on average 1.2378640776699028) internal successors, (510), 416 states have internal predecessors, (510), 78 states have call successors, (78), 8 states have call predecessors, (78), 8 states have return successors, (78), 74 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-16 18:46:47,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 666 transitions. [2024-11-16 18:46:47,489 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 666 transitions. Word has length 144 [2024-11-16 18:46:47,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:46:47,489 INFO L471 AbstractCegarLoop]: Abstraction has 499 states and 666 transitions. [2024-11-16 18:46:47,490 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 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) [2024-11-16 18:46:47,490 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 666 transitions. [2024-11-16 18:46:47,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2024-11-16 18:46:47,492 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:46:47,492 INFO L215 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:46:47,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 18:46:47,493 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:46:47,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:46:47,493 INFO L85 PathProgramCache]: Analyzing trace with hash 938246829, now seen corresponding path program 1 times [2024-11-16 18:46:47,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:46:47,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754374066] [2024-11-16 18:46:47,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:46:47,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:46:47,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:47,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:46:47,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:47,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:46:47,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:47,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:46:47,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:47,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:46:47,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:47,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:46:47,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:47,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:46:47,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:47,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:46:47,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:47,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:46:47,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:47,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:46:47,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:47,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:46:47,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:47,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:46:47,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:47,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:46:47,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:47,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:46:47,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:47,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:46:47,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:47,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 18:46:47,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:47,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-16 18:46:47,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:47,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-16 18:46:47,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:47,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-16 18:46:47,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:47,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-16 18:46:47,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:47,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-16 18:46:47,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:47,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-16 18:46:47,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:47,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-11-16 18:46:47,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:47,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-11-16 18:46:47,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:47,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-11-16 18:46:47,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:47,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-11-16 18:46:47,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:47,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-11-16 18:46:47,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:47,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2024-11-16 18:46:47,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:47,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2024-11-16 18:46:47,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:47,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2024-11-16 18:46:47,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:47,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2024-11-16 18:46:47,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:47,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2024-11-16 18:46:47,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:47,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2024-11-16 18:46:47,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:47,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2024-11-16 18:46:47,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:47,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2024-11-16 18:46:47,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:47,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2024-11-16 18:46:47,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:47,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2024-11-16 18:46:47,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:47,707 INFO L134 CoverageAnalysis]: Checked inductivity of 2576 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 2565 trivial. 0 not checked. [2024-11-16 18:46:47,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:46:47,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754374066] [2024-11-16 18:46:47,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754374066] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:46:47,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:46:47,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 18:46:47,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441860664] [2024-11-16 18:46:47,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:46:47,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 18:46:47,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:46:47,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 18:46:47,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 18:46:47,709 INFO L87 Difference]: Start difference. First operand 499 states and 666 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 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) [2024-11-16 18:46:47,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:46:47,841 INFO L93 Difference]: Finished difference Result 816 states and 1096 transitions. [2024-11-16 18:46:47,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 18:46:47,841 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 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 271 [2024-11-16 18:46:47,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:46:47,843 INFO L225 Difference]: With dead ends: 816 [2024-11-16 18:46:47,843 INFO L226 Difference]: Without dead ends: 611 [2024-11-16 18:46:47,844 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-16 18:46:47,844 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 38 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 18:46:47,845 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 396 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 18:46:47,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611 states. [2024-11-16 18:46:47,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 511. [2024-11-16 18:46:47,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 511 states, 424 states have (on average 1.2452830188679245) internal successors, (528), 428 states have internal predecessors, (528), 78 states have call successors, (78), 8 states have call predecessors, (78), 8 states have return successors, (78), 74 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-16 18:46:47,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 511 states and 684 transitions. [2024-11-16 18:46:47,870 INFO L78 Accepts]: Start accepts. Automaton has 511 states and 684 transitions. Word has length 271 [2024-11-16 18:46:47,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:46:47,870 INFO L471 AbstractCegarLoop]: Abstraction has 511 states and 684 transitions. [2024-11-16 18:46:47,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 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) [2024-11-16 18:46:47,870 INFO L276 IsEmpty]: Start isEmpty. Operand 511 states and 684 transitions. [2024-11-16 18:46:47,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2024-11-16 18:46:47,872 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:46:47,872 INFO L215 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:46:47,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 18:46:47,872 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:46:47,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:46:47,872 INFO L85 PathProgramCache]: Analyzing trace with hash -858704530, now seen corresponding path program 1 times [2024-11-16 18:46:47,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:46:47,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605003735] [2024-11-16 18:46:47,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:46:47,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:46:47,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:48,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:46:48,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:48,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:46:48,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:48,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:46:48,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:48,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:46:48,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:48,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:46:48,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:48,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:46:48,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:48,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:46:48,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:48,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:46:48,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:48,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:46:48,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:48,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:46:48,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:48,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:46:48,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:48,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:46:48,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:48,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:46:48,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:48,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:46:48,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:48,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 18:46:48,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:48,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-16 18:46:48,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:48,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-16 18:46:48,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:48,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-16 18:46:48,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:48,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-16 18:46:48,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:48,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-16 18:46:48,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:48,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-16 18:46:48,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:48,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-11-16 18:46:48,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:48,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-11-16 18:46:48,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:48,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-11-16 18:46:48,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:48,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-11-16 18:46:48,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:48,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-11-16 18:46:48,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:48,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2024-11-16 18:46:48,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:48,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2024-11-16 18:46:48,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:48,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2024-11-16 18:46:48,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:48,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2024-11-16 18:46:48,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:48,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2024-11-16 18:46:48,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:48,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2024-11-16 18:46:48,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:48,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2024-11-16 18:46:48,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:48,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2024-11-16 18:46:48,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:48,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2024-11-16 18:46:48,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:48,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2024-11-16 18:46:48,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:48,053 INFO L134 CoverageAnalysis]: Checked inductivity of 2576 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 2564 trivial. 0 not checked. [2024-11-16 18:46:48,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:46:48,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605003735] [2024-11-16 18:46:48,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605003735] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:46:48,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:46:48,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 18:46:48,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487392970] [2024-11-16 18:46:48,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:46:48,054 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 18:46:48,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:46:48,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 18:46:48,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 18:46:48,055 INFO L87 Difference]: Start difference. First operand 511 states and 684 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 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) [2024-11-16 18:46:48,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:46:48,197 INFO L93 Difference]: Finished difference Result 885 states and 1197 transitions. [2024-11-16 18:46:48,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 18:46:48,198 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 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 271 [2024-11-16 18:46:48,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:46:48,200 INFO L225 Difference]: With dead ends: 885 [2024-11-16 18:46:48,200 INFO L226 Difference]: Without dead ends: 668 [2024-11-16 18:46:48,201 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-16 18:46:48,201 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 47 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 18:46:48,201 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 539 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 18:46:48,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 668 states. [2024-11-16 18:46:48,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 668 to 541. [2024-11-16 18:46:48,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 454 states have (on average 1.2665198237885462) internal successors, (575), 458 states have internal predecessors, (575), 78 states have call successors, (78), 8 states have call predecessors, (78), 8 states have return successors, (78), 74 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-16 18:46:48,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 731 transitions. [2024-11-16 18:46:48,221 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 731 transitions. Word has length 271 [2024-11-16 18:46:48,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:46:48,221 INFO L471 AbstractCegarLoop]: Abstraction has 541 states and 731 transitions. [2024-11-16 18:46:48,221 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 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) [2024-11-16 18:46:48,221 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 731 transitions. [2024-11-16 18:46:48,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2024-11-16 18:46:48,223 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:46:48,224 INFO L215 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:46:48,224 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-16 18:46:48,224 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:46:48,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:46:48,224 INFO L85 PathProgramCache]: Analyzing trace with hash 841357327, now seen corresponding path program 1 times [2024-11-16 18:46:48,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:46:48,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054049731] [2024-11-16 18:46:48,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:46:48,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:46:48,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:48,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:46:48,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:48,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:46:48,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:48,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:46:48,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:48,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:46:48,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:48,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:46:48,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:48,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:46:48,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:48,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:46:48,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:48,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:46:48,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:48,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:46:48,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:48,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:46:48,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:48,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:46:48,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:48,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:46:48,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:48,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:46:48,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:48,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:46:48,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:48,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 18:46:48,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:48,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-16 18:46:48,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:48,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-16 18:46:48,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:48,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-16 18:46:48,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:48,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-16 18:46:48,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:48,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-16 18:46:48,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:48,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-16 18:46:48,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:48,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-11-16 18:46:48,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:48,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-11-16 18:46:48,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:48,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-11-16 18:46:48,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:48,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-11-16 18:46:48,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:48,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-11-16 18:46:48,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:48,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2024-11-16 18:46:48,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:48,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2024-11-16 18:46:48,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:48,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2024-11-16 18:46:48,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:48,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2024-11-16 18:46:48,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:48,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2024-11-16 18:46:48,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:48,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2024-11-16 18:46:48,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:48,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2024-11-16 18:46:48,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:48,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2024-11-16 18:46:48,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:48,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2024-11-16 18:46:48,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:48,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2024-11-16 18:46:48,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:48,465 INFO L134 CoverageAnalysis]: Checked inductivity of 2576 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 2565 trivial. 0 not checked. [2024-11-16 18:46:48,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:46:48,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054049731] [2024-11-16 18:46:48,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054049731] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:46:48,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:46:48,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 18:46:48,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692806516] [2024-11-16 18:46:48,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:46:48,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 18:46:48,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:46:48,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 18:46:48,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 18:46:48,467 INFO L87 Difference]: Start difference. First operand 541 states and 731 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 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) [2024-11-16 18:46:48,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:46:48,613 INFO L93 Difference]: Finished difference Result 897 states and 1220 transitions. [2024-11-16 18:46:48,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 18:46:48,614 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 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 271 [2024-11-16 18:46:48,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:46:48,616 INFO L225 Difference]: With dead ends: 897 [2024-11-16 18:46:48,616 INFO L226 Difference]: Without dead ends: 647 [2024-11-16 18:46:48,617 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-16 18:46:48,617 INFO L432 NwaCegarLoop]: 130 mSDtfsCounter, 34 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 486 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 18:46:48,617 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 486 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 18:46:48,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 647 states. [2024-11-16 18:46:48,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 647 to 556. [2024-11-16 18:46:48,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 469 states have (on average 1.2643923240938166) internal successors, (593), 473 states have internal predecessors, (593), 78 states have call successors, (78), 8 states have call predecessors, (78), 8 states have return successors, (78), 74 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-16 18:46:48,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 749 transitions. [2024-11-16 18:46:48,639 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 749 transitions. Word has length 271 [2024-11-16 18:46:48,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:46:48,639 INFO L471 AbstractCegarLoop]: Abstraction has 556 states and 749 transitions. [2024-11-16 18:46:48,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 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) [2024-11-16 18:46:48,639 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 749 transitions. [2024-11-16 18:46:48,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2024-11-16 18:46:48,640 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:46:48,640 INFO L215 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:46:48,640 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-16 18:46:48,641 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:46:48,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:46:48,641 INFO L85 PathProgramCache]: Analyzing trace with hash 644843822, now seen corresponding path program 1 times [2024-11-16 18:46:48,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:46:48,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811384195] [2024-11-16 18:46:48,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:46:48,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:46:48,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:49,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:46:49,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:49,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:46:49,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:49,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:46:49,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:49,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:46:49,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:49,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:46:49,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:49,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:46:49,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:49,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:46:49,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:49,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:46:49,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:49,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:46:49,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:49,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:46:49,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:49,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:46:49,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:49,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:46:49,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:49,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:46:49,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:49,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:46:49,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:49,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 18:46:49,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:49,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-16 18:46:49,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:49,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-16 18:46:49,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:49,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-16 18:46:49,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:49,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-16 18:46:49,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:49,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-16 18:46:49,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:49,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-16 18:46:49,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:49,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-11-16 18:46:49,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:49,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-11-16 18:46:49,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:49,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-11-16 18:46:49,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:49,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-11-16 18:46:49,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:49,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-11-16 18:46:49,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:49,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2024-11-16 18:46:49,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:49,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2024-11-16 18:46:49,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:49,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2024-11-16 18:46:49,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:49,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2024-11-16 18:46:49,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:49,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2024-11-16 18:46:49,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:49,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2024-11-16 18:46:49,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:49,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2024-11-16 18:46:49,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:49,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2024-11-16 18:46:49,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:49,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2024-11-16 18:46:49,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:49,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2024-11-16 18:46:49,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:49,702 INFO L134 CoverageAnalysis]: Checked inductivity of 2576 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 2565 trivial. 0 not checked. [2024-11-16 18:46:49,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:46:49,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811384195] [2024-11-16 18:46:49,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811384195] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:46:49,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:46:49,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 18:46:49,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817812246] [2024-11-16 18:46:49,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:46:49,704 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 18:46:49,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:46:49,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 18:46:49,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 18:46:49,705 INFO L87 Difference]: Start difference. First operand 556 states and 749 transitions. Second operand has 7 states, 6 states have (on average 11.666666666666666) internal successors, (70), 7 states have internal predecessors, (70), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-16 18:46:49,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:46:49,860 INFO L93 Difference]: Finished difference Result 1217 states and 1637 transitions. [2024-11-16 18:46:49,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 18:46:49,861 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.666666666666666) internal successors, (70), 7 states have internal predecessors, (70), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 271 [2024-11-16 18:46:49,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:46:49,863 INFO L225 Difference]: With dead ends: 1217 [2024-11-16 18:46:49,863 INFO L226 Difference]: Without dead ends: 753 [2024-11-16 18:46:49,865 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-16 18:46:49,866 INFO L432 NwaCegarLoop]: 136 mSDtfsCounter, 37 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 18:46:49,866 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 565 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 18:46:49,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 753 states. [2024-11-16 18:46:49,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 753 to 556. [2024-11-16 18:46:49,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 469 states have (on average 1.2643923240938166) internal successors, (593), 473 states have internal predecessors, (593), 78 states have call successors, (78), 8 states have call predecessors, (78), 8 states have return successors, (78), 74 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-16 18:46:49,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 749 transitions. [2024-11-16 18:46:49,903 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 749 transitions. Word has length 271 [2024-11-16 18:46:49,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:46:49,904 INFO L471 AbstractCegarLoop]: Abstraction has 556 states and 749 transitions. [2024-11-16 18:46:49,904 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.666666666666666) internal successors, (70), 7 states have internal predecessors, (70), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-16 18:46:49,904 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 749 transitions. [2024-11-16 18:46:49,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2024-11-16 18:46:49,905 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:46:49,906 INFO L215 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:46:49,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-16 18:46:49,906 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:46:49,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:46:49,906 INFO L85 PathProgramCache]: Analyzing trace with hash 432688204, now seen corresponding path program 1 times [2024-11-16 18:46:49,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:46:49,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643723010] [2024-11-16 18:46:49,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:46:49,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:46:49,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:46:50,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:46:50,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:46:50,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:46:50,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:46:50,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:46:50,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:46:50,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:46:50,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:46:50,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:46:50,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:46:50,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:46:50,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:46:50,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:46:50,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 18:46:50,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-16 18:46:50,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-16 18:46:50,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-16 18:46:50,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-16 18:46:50,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-16 18:46:50,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-16 18:46:50,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-11-16 18:46:50,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-11-16 18:46:50,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-11-16 18:46:50,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-11-16 18:46:50,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-11-16 18:46:50,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2024-11-16 18:46:50,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2024-11-16 18:46:50,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2024-11-16 18:46:50,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2024-11-16 18:46:50,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2024-11-16 18:46:50,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2024-11-16 18:46:50,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2024-11-16 18:46:50,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2024-11-16 18:46:50,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2024-11-16 18:46:50,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2024-11-16 18:46:50,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,255 INFO L134 CoverageAnalysis]: Checked inductivity of 2576 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 2564 trivial. 0 not checked. [2024-11-16 18:46:50,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:46:50,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643723010] [2024-11-16 18:46:50,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643723010] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:46:50,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:46:50,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 18:46:50,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692475571] [2024-11-16 18:46:50,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:46:50,256 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 18:46:50,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:46:50,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 18:46:50,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 18:46:50,257 INFO L87 Difference]: Start difference. First operand 556 states and 749 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 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) [2024-11-16 18:46:50,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:46:50,414 INFO L93 Difference]: Finished difference Result 1015 states and 1364 transitions. [2024-11-16 18:46:50,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 18:46:50,414 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 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 271 [2024-11-16 18:46:50,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:46:50,417 INFO L225 Difference]: With dead ends: 1015 [2024-11-16 18:46:50,417 INFO L226 Difference]: Without dead ends: 753 [2024-11-16 18:46:50,418 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-16 18:46:50,418 INFO L432 NwaCegarLoop]: 109 mSDtfsCounter, 37 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 18:46:50,419 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 445 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 18:46:50,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 753 states. [2024-11-16 18:46:50,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 753 to 550. [2024-11-16 18:46:50,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 463 states have (on average 1.2613390928725703) internal successors, (584), 467 states have internal predecessors, (584), 78 states have call successors, (78), 8 states have call predecessors, (78), 8 states have return successors, (78), 74 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-16 18:46:50,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 740 transitions. [2024-11-16 18:46:50,441 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 740 transitions. Word has length 271 [2024-11-16 18:46:50,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:46:50,441 INFO L471 AbstractCegarLoop]: Abstraction has 550 states and 740 transitions. [2024-11-16 18:46:50,442 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 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) [2024-11-16 18:46:50,442 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 740 transitions. [2024-11-16 18:46:50,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2024-11-16 18:46:50,443 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:46:50,443 INFO L215 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:46:50,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-16 18:46:50,444 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:46:50,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:46:50,444 INFO L85 PathProgramCache]: Analyzing trace with hash 335798702, now seen corresponding path program 1 times [2024-11-16 18:46:50,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:46:50,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802101120] [2024-11-16 18:46:50,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:46:50,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:46:50,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:46:50,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:46:50,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:46:50,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:46:50,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:46:50,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:46:50,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:46:50,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:46:50,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:46:50,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:46:50,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:46:50,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:46:50,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:46:50,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:46:50,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 18:46:50,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-16 18:46:50,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-16 18:46:50,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-16 18:46:50,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-16 18:46:50,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-16 18:46:50,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-16 18:46:50,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-11-16 18:46:50,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-11-16 18:46:50,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-11-16 18:46:50,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-11-16 18:46:50,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-11-16 18:46:50,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2024-11-16 18:46:50,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2024-11-16 18:46:50,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2024-11-16 18:46:50,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2024-11-16 18:46:50,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2024-11-16 18:46:50,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2024-11-16 18:46:50,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2024-11-16 18:46:50,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2024-11-16 18:46:50,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2024-11-16 18:46:50,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2024-11-16 18:46:50,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,629 INFO L134 CoverageAnalysis]: Checked inductivity of 2576 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 2565 trivial. 0 not checked. [2024-11-16 18:46:50,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:46:50,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802101120] [2024-11-16 18:46:50,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802101120] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:46:50,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:46:50,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 18:46:50,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457529707] [2024-11-16 18:46:50,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:46:50,630 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 18:46:50,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:46:50,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 18:46:50,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 18:46:50,631 INFO L87 Difference]: Start difference. First operand 550 states and 740 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 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) [2024-11-16 18:46:50,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:46:50,742 INFO L93 Difference]: Finished difference Result 1202 states and 1613 transitions. [2024-11-16 18:46:50,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 18:46:50,744 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 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 271 [2024-11-16 18:46:50,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:46:50,746 INFO L225 Difference]: With dead ends: 1202 [2024-11-16 18:46:50,746 INFO L226 Difference]: Without dead ends: 744 [2024-11-16 18:46:50,747 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-16 18:46:50,748 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 35 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 589 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 18:46:50,748 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 589 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 18:46:50,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2024-11-16 18:46:50,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 633. [2024-11-16 18:46:50,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 633 states, 546 states have (on average 1.2619047619047619) internal successors, (689), 550 states have internal predecessors, (689), 78 states have call successors, (78), 8 states have call predecessors, (78), 8 states have return successors, (78), 74 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-16 18:46:50,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 633 states to 633 states and 845 transitions. [2024-11-16 18:46:50,771 INFO L78 Accepts]: Start accepts. Automaton has 633 states and 845 transitions. Word has length 271 [2024-11-16 18:46:50,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:46:50,772 INFO L471 AbstractCegarLoop]: Abstraction has 633 states and 845 transitions. [2024-11-16 18:46:50,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 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) [2024-11-16 18:46:50,772 INFO L276 IsEmpty]: Start isEmpty. Operand 633 states and 845 transitions. [2024-11-16 18:46:50,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2024-11-16 18:46:50,773 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:46:50,773 INFO L215 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:46:50,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-16 18:46:50,773 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:46:50,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:46:50,774 INFO L85 PathProgramCache]: Analyzing trace with hash -1461152657, now seen corresponding path program 1 times [2024-11-16 18:46:50,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:46:50,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439049400] [2024-11-16 18:46:50,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:46:50,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:46:50,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:46:50,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:46:50,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:46:50,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:46:50,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:46:50,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:46:50,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:46:50,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:46:50,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:46:50,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:46:50,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:46:50,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:46:50,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:46:50,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:46:50,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 18:46:50,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-16 18:46:50,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-16 18:46:50,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-16 18:46:50,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-16 18:46:50,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-16 18:46:50,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-16 18:46:50,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-11-16 18:46:50,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-11-16 18:46:50,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-11-16 18:46:50,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-11-16 18:46:50,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-11-16 18:46:50,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2024-11-16 18:46:50,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2024-11-16 18:46:50,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2024-11-16 18:46:50,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2024-11-16 18:46:50,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2024-11-16 18:46:50,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2024-11-16 18:46:50,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2024-11-16 18:46:50,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2024-11-16 18:46:50,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2024-11-16 18:46:50,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2024-11-16 18:46:50,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:50,904 INFO L134 CoverageAnalysis]: Checked inductivity of 2576 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 2565 trivial. 0 not checked. [2024-11-16 18:46:50,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:46:50,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439049400] [2024-11-16 18:46:50,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439049400] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:46:50,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:46:50,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 18:46:50,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009716997] [2024-11-16 18:46:50,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:46:50,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 18:46:50,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:46:50,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 18:46:50,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 18:46:50,906 INFO L87 Difference]: Start difference. First operand 633 states and 845 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 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) [2024-11-16 18:46:50,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:46:50,964 INFO L93 Difference]: Finished difference Result 1273 states and 1691 transitions. [2024-11-16 18:46:50,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 18:46:50,964 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 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 271 [2024-11-16 18:46:50,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:46:50,968 INFO L225 Difference]: With dead ends: 1273 [2024-11-16 18:46:50,968 INFO L226 Difference]: Without dead ends: 729 [2024-11-16 18:46:50,969 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 18:46:50,970 INFO L432 NwaCegarLoop]: 148 mSDtfsCounter, 31 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 18:46:50,970 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 525 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 18:46:50,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 729 states. [2024-11-16 18:46:50,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 729 to 615. [2024-11-16 18:46:50,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 615 states, 528 states have (on average 1.2424242424242424) internal successors, (656), 532 states have internal predecessors, (656), 78 states have call successors, (78), 8 states have call predecessors, (78), 8 states have return successors, (78), 74 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-16 18:46:50,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 812 transitions. [2024-11-16 18:46:50,993 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 812 transitions. Word has length 271 [2024-11-16 18:46:50,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:46:50,993 INFO L471 AbstractCegarLoop]: Abstraction has 615 states and 812 transitions. [2024-11-16 18:46:50,993 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 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) [2024-11-16 18:46:50,994 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 812 transitions. [2024-11-16 18:46:50,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2024-11-16 18:46:50,995 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:46:50,995 INFO L215 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:46:50,995 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-16 18:46:50,995 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:46:50,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:46:50,995 INFO L85 PathProgramCache]: Analyzing trace with hash 1843042183, now seen corresponding path program 1 times [2024-11-16 18:46:50,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:46:50,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637861335] [2024-11-16 18:46:50,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:46:50,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:46:51,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:51,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:46:51,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:51,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:46:51,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:51,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:46:51,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:51,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:46:51,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:51,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:46:51,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:51,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:46:51,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:51,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:46:51,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:51,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:46:51,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:51,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:46:51,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:51,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:46:51,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:51,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:46:51,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:51,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:46:51,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:51,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:46:51,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:51,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:46:51,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:51,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 18:46:51,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:51,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-16 18:46:51,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:51,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-16 18:46:51,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:51,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-16 18:46:51,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:51,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-16 18:46:51,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:51,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-16 18:46:51,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:51,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-16 18:46:51,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:51,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-11-16 18:46:51,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:51,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-11-16 18:46:51,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:51,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-11-16 18:46:51,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:51,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-11-16 18:46:51,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:51,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-11-16 18:46:51,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:51,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2024-11-16 18:46:51,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:51,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2024-11-16 18:46:51,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:51,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2024-11-16 18:46:51,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:51,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2024-11-16 18:46:51,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:51,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2024-11-16 18:46:51,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:51,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2024-11-16 18:46:51,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:51,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2024-11-16 18:46:51,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:51,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2024-11-16 18:46:51,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:51,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2024-11-16 18:46:51,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:51,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2024-11-16 18:46:51,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:51,130 INFO L134 CoverageAnalysis]: Checked inductivity of 2578 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 2567 trivial. 0 not checked. [2024-11-16 18:46:51,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:46:51,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637861335] [2024-11-16 18:46:51,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637861335] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:46:51,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:46:51,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 18:46:51,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975685779] [2024-11-16 18:46:51,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:46:51,131 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 18:46:51,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:46:51,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 18:46:51,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 18:46:51,132 INFO L87 Difference]: Start difference. First operand 615 states and 812 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 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) [2024-11-16 18:46:51,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:46:51,186 INFO L93 Difference]: Finished difference Result 1280 states and 1682 transitions. [2024-11-16 18:46:51,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 18:46:51,186 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 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 273 [2024-11-16 18:46:51,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:46:51,189 INFO L225 Difference]: With dead ends: 1280 [2024-11-16 18:46:51,189 INFO L226 Difference]: Without dead ends: 757 [2024-11-16 18:46:51,191 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-16 18:46:51,191 INFO L432 NwaCegarLoop]: 116 mSDtfsCounter, 46 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 18:46:51,191 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 367 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 18:46:51,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 757 states. [2024-11-16 18:46:51,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 757 to 588. [2024-11-16 18:46:51,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 588 states, 501 states have (on average 1.219560878243513) internal successors, (611), 505 states have internal predecessors, (611), 78 states have call successors, (78), 8 states have call predecessors, (78), 8 states have return successors, (78), 74 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-16 18:46:51,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 588 states and 767 transitions. [2024-11-16 18:46:51,215 INFO L78 Accepts]: Start accepts. Automaton has 588 states and 767 transitions. Word has length 273 [2024-11-16 18:46:51,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:46:51,215 INFO L471 AbstractCegarLoop]: Abstraction has 588 states and 767 transitions. [2024-11-16 18:46:51,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 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) [2024-11-16 18:46:51,215 INFO L276 IsEmpty]: Start isEmpty. Operand 588 states and 767 transitions. [2024-11-16 18:46:51,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2024-11-16 18:46:51,216 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:46:51,217 INFO L215 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:46:51,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-16 18:46:51,217 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:46:51,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:46:51,217 INFO L85 PathProgramCache]: Analyzing trace with hash 1685365803, now seen corresponding path program 1 times [2024-11-16 18:46:51,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:46:51,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700245016] [2024-11-16 18:46:51,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:46:51,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:46:51,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-16 18:46:51,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [163314937] [2024-11-16 18:46:51,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:46:51,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 18:46:51,320 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 18:46:51,321 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 18:46:51,322 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-16 18:46:51,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:46:51,545 INFO L255 TraceCheckSpWp]: Trace formula consists of 744 conjuncts, 66 conjuncts are in the unsatisfiable core [2024-11-16 18:46:51,555 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 18:46:51,563 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 64 [2024-11-16 18:46:51,724 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 79 [2024-11-16 18:46:52,078 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 83 [2024-11-16 18:46:52,487 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 87 [2024-11-16 18:46:52,891 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 91 [2024-11-16 18:46:53,319 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 95 [2024-11-16 18:46:53,800 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 99 [2024-11-16 18:46:54,332 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 120 treesize of output 103 [2024-11-16 18:46:54,877 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 126 treesize of output 107 [2024-11-16 18:46:55,504 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 132 treesize of output 111 [2024-11-16 18:46:56,384 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 138 treesize of output 113 [2024-11-16 18:46:56,648 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 140 treesize of output 115 [2024-11-16 18:46:57,770 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 166 treesize of output 135 [2024-11-16 18:46:58,743 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 166 treesize of output 135 [2024-11-16 18:46:59,723 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 166 treesize of output 135 [2024-11-16 18:47:00,673 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 166 treesize of output 135 [2024-11-16 18:47:01,634 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 166 treesize of output 135 [2024-11-16 18:47:02,727 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 142 treesize of output 117 [2024-11-16 18:47:03,770 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 142 treesize of output 117 [2024-11-16 18:47:04,794 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 142 treesize of output 117 [2024-11-16 18:47:05,744 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 142 treesize of output 117 [2024-11-16 18:47:06,745 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 238 treesize of output 188 [2024-11-16 18:47:10,560 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 820 treesize of output 673 [2024-11-16 18:47:14,865 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 903 treesize of output 736 [2024-11-16 18:47:19,751 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 906 treesize of output 738 [2024-11-16 18:47:20,984 INFO L134 CoverageAnalysis]: Checked inductivity of 2578 backedges. 6 proven. 2244 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2024-11-16 18:47:20,984 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 18:47:22,375 INFO L134 CoverageAnalysis]: Checked inductivity of 2578 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 2562 trivial. 0 not checked. [2024-11-16 18:47:22,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:47:22,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700245016] [2024-11-16 18:47:22,376 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-16 18:47:22,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [163314937] [2024-11-16 18:47:22,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [163314937] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-16 18:47:22,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 18:47:22,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [20] total 24 [2024-11-16 18:47:22,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981932450] [2024-11-16 18:47:22,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:47:22,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 18:47:22,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:47:22,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 18:47:22,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=449, Unknown=0, NotChecked=0, Total=552 [2024-11-16 18:47:22,377 INFO L87 Difference]: Start difference. First operand 588 states and 767 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 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) [2024-11-16 18:47:23,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:47:23,108 INFO L93 Difference]: Finished difference Result 1087 states and 1421 transitions. [2024-11-16 18:47:23,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 18:47:23,109 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 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 274 [2024-11-16 18:47:23,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:47:23,111 INFO L225 Difference]: With dead ends: 1087 [2024-11-16 18:47:23,111 INFO L226 Difference]: Without dead ends: 591 [2024-11-16 18:47:23,112 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 547 GetRequests, 515 SyntacticMatches, 9 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 11.1s TimeCoverageRelationStatistics Valid=108, Invalid=492, Unknown=0, NotChecked=0, Total=600 [2024-11-16 18:47:23,113 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 62 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 18:47:23,113 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 311 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 18:47:23,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2024-11-16 18:47:23,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 588. [2024-11-16 18:47:23,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 588 states, 501 states have (on average 1.2035928143712575) internal successors, (603), 505 states have internal predecessors, (603), 78 states have call successors, (78), 8 states have call predecessors, (78), 8 states have return successors, (78), 74 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-16 18:47:23,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 588 states and 759 transitions. [2024-11-16 18:47:23,132 INFO L78 Accepts]: Start accepts. Automaton has 588 states and 759 transitions. Word has length 274 [2024-11-16 18:47:23,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:47:23,133 INFO L471 AbstractCegarLoop]: Abstraction has 588 states and 759 transitions. [2024-11-16 18:47:23,133 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 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) [2024-11-16 18:47:23,133 INFO L276 IsEmpty]: Start isEmpty. Operand 588 states and 759 transitions. [2024-11-16 18:47:23,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2024-11-16 18:47:23,134 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:47:23,134 INFO L215 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:47:23,149 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-16 18:47:23,335 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 18:47:23,336 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:47:23,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:47:23,336 INFO L85 PathProgramCache]: Analyzing trace with hash -138477231, now seen corresponding path program 1 times [2024-11-16 18:47:23,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:47:23,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169974790] [2024-11-16 18:47:23,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:47:23,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:47:23,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-16 18:47:23,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [740124565] [2024-11-16 18:47:23,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:47:23,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 18:47:23,446 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 18:47:23,447 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 18:47:23,448 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-16 18:47:23,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:47:23,672 INFO L255 TraceCheckSpWp]: Trace formula consists of 746 conjuncts, 62 conjuncts are in the unsatisfiable core [2024-11-16 18:47:23,679 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 18:47:23,681 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 64 [2024-11-16 18:47:23,839 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 79 [2024-11-16 18:47:24,181 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 83 [2024-11-16 18:47:24,586 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 87 [2024-11-16 18:47:25,045 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 91 [2024-11-16 18:47:25,446 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 95 [2024-11-16 18:47:25,894 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 99 [2024-11-16 18:47:26,442 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 120 treesize of output 103 [2024-11-16 18:47:27,093 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 126 treesize of output 107 [2024-11-16 18:47:27,787 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 132 treesize of output 111 [2024-11-16 18:47:28,727 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 138 treesize of output 113 [2024-11-16 18:47:29,201 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 140 treesize of output 115 [2024-11-16 18:47:30,073 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 138 treesize of output 112 [2024-11-16 18:47:30,315 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-16 18:47:31,442 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-16 18:47:31,482 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-16 18:47:31,519 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-16 18:47:31,556 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-16 18:47:31,602 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-16 18:47:31,630 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-16 18:47:31,659 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-16 18:47:31,694 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 125 treesize of output 95 [2024-11-16 18:47:31,699 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 18:47:31,700 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 95 treesize of output 117 [2024-11-16 18:47:31,750 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 54 [2024-11-16 18:47:32,467 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 18:47:32,467 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 157 treesize of output 117 [2024-11-16 18:47:32,978 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 18:47:32,979 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 168 treesize of output 120 [2024-11-16 18:47:33,610 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 18:47:33,610 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 66 [2024-11-16 18:47:34,317 INFO L134 CoverageAnalysis]: Checked inductivity of 2578 backedges. 147 proven. 1969 refuted. 0 times theorem prover too weak. 462 trivial. 0 not checked. [2024-11-16 18:47:34,317 INFO L311 TraceCheckSpWp]: Computing backward predicates...