./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-15.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-15.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 9e676a9bb9259ddb9063c9a4fa6515c5445e4b4dd1533585e7d2db7e7d77e030 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 18:41:17,086 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 18:41:17,170 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 18:41:17,176 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 18:41:17,177 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 18:41:17,206 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 18:41:17,207 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 18:41:17,207 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 18:41:17,208 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 18:41:17,211 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 18:41:17,211 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 18:41:17,212 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 18:41:17,212 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 18:41:17,214 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 18:41:17,215 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 18:41:17,215 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 18:41:17,215 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 18:41:17,215 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 18:41:17,216 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 18:41:17,216 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 18:41:17,216 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 18:41:17,217 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 18:41:17,218 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 18:41:17,219 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 18:41:17,219 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 18:41:17,219 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 18:41:17,219 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 18:41:17,219 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 18:41:17,220 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 18:41:17,220 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 18:41:17,220 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 18:41:17,220 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 18:41:17,221 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 18:41:17,221 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 18:41:17,221 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 18:41:17,221 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 18:41:17,221 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 18:41:17,221 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 18:41:17,222 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 18:41:17,222 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 18:41:17,223 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 18:41:17,223 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 18:41:17,224 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e676a9bb9259ddb9063c9a4fa6515c5445e4b4dd1533585e7d2db7e7d77e030 [2024-11-16 18:41:17,435 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 18:41:17,460 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 18:41:17,464 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 18:41:17,465 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 18:41:17,465 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 18:41:17,466 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-15.i [2024-11-16 18:41:18,988 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 18:41:19,194 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 18:41:19,196 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-15.i [2024-11-16 18:41:19,210 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/227737ab2/221196f202984a0db2e021d7258a98bb/FLAG9aaf54a50 [2024-11-16 18:41:19,560 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/227737ab2/221196f202984a0db2e021d7258a98bb [2024-11-16 18:41:19,563 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 18:41:19,564 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 18:41:19,566 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 18:41:19,566 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 18:41:19,572 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 18:41:19,573 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 06:41:19" (1/1) ... [2024-11-16 18:41:19,574 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46ad94fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:41:19, skipping insertion in model container [2024-11-16 18:41:19,574 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 06:41:19" (1/1) ... [2024-11-16 18:41:19,606 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 18:41:19,778 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-15.i[916,929] [2024-11-16 18:41:19,830 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 18:41:19,840 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 18:41:19,852 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-15.i[916,929] [2024-11-16 18:41:19,888 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 18:41:19,912 INFO L204 MainTranslator]: Completed translation [2024-11-16 18:41:19,913 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:41:19 WrapperNode [2024-11-16 18:41:19,913 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 18:41:19,914 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 18:41:19,914 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 18:41:19,914 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 18:41:19,921 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:41:19" (1/1) ... [2024-11-16 18:41:19,935 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:41:19" (1/1) ... [2024-11-16 18:41:19,998 INFO L138 Inliner]: procedures = 30, calls = 151, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 494 [2024-11-16 18:41:19,999 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 18:41:19,999 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 18:41:19,999 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 18:41:19,999 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 18:41:20,020 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:41:19" (1/1) ... [2024-11-16 18:41:20,021 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:41:19" (1/1) ... [2024-11-16 18:41:20,045 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:41:19" (1/1) ... [2024-11-16 18:41:20,055 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2024-11-16 18:41:20,056 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:41:19" (1/1) ... [2024-11-16 18:41:20,056 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:41:19" (1/1) ... [2024-11-16 18:41:20,078 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:41:19" (1/1) ... [2024-11-16 18:41:20,079 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:41:19" (1/1) ... [2024-11-16 18:41:20,081 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:41:19" (1/1) ... [2024-11-16 18:41:20,083 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:41:19" (1/1) ... [2024-11-16 18:41:20,089 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 18:41:20,090 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 18:41:20,090 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 18:41:20,090 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 18:41:20,093 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:41:19" (1/1) ... [2024-11-16 18:41:20,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 18:41:20,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 18:41:20,145 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 18:41:20,149 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 18:41:20,200 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 18:41:20,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2024-11-16 18:41:20,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-16 18:41:20,201 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-11-16 18:41:20,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-16 18:41:20,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-11-16 18:41:20,202 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-16 18:41:20,202 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-16 18:41:20,202 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-16 18:41:20,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-16 18:41:20,202 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 18:41:20,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 18:41:20,342 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 18:41:20,344 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 18:41:20,824 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L108: havoc property_#t~mem89#1;havoc property_#t~mem87#1;havoc property_#t~mem88#1;havoc property_#t~short90#1;havoc property_#t~ite101#1;havoc property_#t~mem91#1;havoc property_#t~mem92#1;havoc property_#t~ite98#1;havoc property_#t~mem93#1;havoc property_#t~ite96#1;havoc property_#t~mem95#1;havoc property_#t~mem94#1;havoc property_#t~mem97#1;havoc property_#t~mem100#1;havoc property_#t~mem99#1;havoc property_#t~mem102#1;havoc property_#t~ite112#1;havoc property_#t~mem107#1;havoc property_#t~mem103#1;havoc property_#t~ite106#1;havoc property_#t~mem104#1;havoc property_#t~mem105#1;havoc property_#t~mem111#1;havoc property_#t~mem108#1;havoc property_#t~ite110#1;havoc property_#t~mem109#1;havoc property_#t~short113#1;havoc property_#t~mem114#1;havoc property_#t~ite121#1;havoc property_#t~mem120#1;havoc property_#t~mem119#1;havoc property_#t~mem115#1;havoc property_#t~ite118#1;havoc property_#t~mem116#1;havoc property_#t~mem117#1;havoc property_#t~short122#1;havoc property_#t~mem123#1;havoc property_#t~mem124#1;havoc property_#t~ite140#1;havoc property_#t~mem133#1;havoc property_#t~mem132#1;havoc property_#t~mem125#1;havoc property_#t~mem126#1;havoc property_#t~mem127#1;havoc property_#t~ite131#1;havoc property_#t~mem128#1;havoc property_#t~mem129#1;havoc property_#t~mem130#1;havoc property_#t~mem139#1;havoc property_#t~mem134#1;havoc property_#t~mem135#1;havoc property_#t~ite138#1;havoc property_#t~mem136#1;havoc property_#t~mem137#1;havoc property_#t~short141#1; [2024-11-16 18:41:20,865 INFO L? ?]: Removed 129 outVars from TransFormulas that were not future-live. [2024-11-16 18:41:20,865 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 18:41:20,886 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 18:41:20,887 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 18:41:20,887 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 06:41:20 BoogieIcfgContainer [2024-11-16 18:41:20,887 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 18:41:20,889 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 18:41:20,890 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 18:41:20,893 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 18:41:20,893 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 06:41:19" (1/3) ... [2024-11-16 18:41:20,894 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e5501b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 06:41:20, skipping insertion in model container [2024-11-16 18:41:20,894 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:41:19" (2/3) ... [2024-11-16 18:41:20,895 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e5501b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 06:41:20, skipping insertion in model container [2024-11-16 18:41:20,895 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 06:41:20" (3/3) ... [2024-11-16 18:41:20,896 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-15.i [2024-11-16 18:41:20,911 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 18:41:20,911 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 18:41:20,985 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 18:41:20,993 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;@7fd3bc5d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 18:41:20,995 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 18:41:20,999 INFO L276 IsEmpty]: Start isEmpty. Operand has 116 states, 101 states have (on average 1.4356435643564356) internal successors, (145), 102 states have internal predecessors, (145), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-16 18:41:21,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-16 18:41:21,015 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:41:21,016 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:41:21,017 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:41:21,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:41:21,023 INFO L85 PathProgramCache]: Analyzing trace with hash -1791820989, now seen corresponding path program 1 times [2024-11-16 18:41:21,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:41:21,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633717760] [2024-11-16 18:41:21,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:41:21,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:41:21,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:21,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:41:21,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:21,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:41:21,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:21,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:41:21,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:21,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:41:21,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:21,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:41:21,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:21,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:41:21,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:21,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:41:21,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:21,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:41:21,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:21,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 18:41:21,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:21,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:41:21,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:21,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 18:41:21,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:21,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:41:21,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:21,569 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-16 18:41:21,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:41:21,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633717760] [2024-11-16 18:41:21,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633717760] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:41:21,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:41:21,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 18:41:21,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774987168] [2024-11-16 18:41:21,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:41:21,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 18:41:21,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:41:21,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 18:41:21,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 18:41:21,604 INFO L87 Difference]: Start difference. First operand has 116 states, 101 states have (on average 1.4356435643564356) internal successors, (145), 102 states have internal predecessors, (145), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-16 18:41:21,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:41:21,632 INFO L93 Difference]: Finished difference Result 224 states and 343 transitions. [2024-11-16 18:41:21,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 18:41:21,635 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 117 [2024-11-16 18:41:21,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:41:21,644 INFO L225 Difference]: With dead ends: 224 [2024-11-16 18:41:21,644 INFO L226 Difference]: Without dead ends: 111 [2024-11-16 18:41:21,647 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 26 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 18:41:21,651 INFO L432 NwaCegarLoop]: 159 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, 159 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 18:41:21,653 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 18:41:21,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-11-16 18:41:21,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2024-11-16 18:41:21,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 97 states have (on average 1.3917525773195876) internal successors, (135), 97 states have internal predecessors, (135), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-16 18:41:21,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 159 transitions. [2024-11-16 18:41:21,692 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 159 transitions. Word has length 117 [2024-11-16 18:41:21,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:41:21,694 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 159 transitions. [2024-11-16 18:41:21,694 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-16 18:41:21,694 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 159 transitions. [2024-11-16 18:41:21,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-16 18:41:21,697 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:41:21,697 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:41:21,698 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 18:41:21,698 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:41:21,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:41:21,699 INFO L85 PathProgramCache]: Analyzing trace with hash 425936964, now seen corresponding path program 1 times [2024-11-16 18:41:21,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:41:21,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768533844] [2024-11-16 18:41:21,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:41:21,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:41:21,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:21,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:41:21,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:21,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:41:21,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:21,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:41:21,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:21,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:41:21,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:21,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:41:21,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:21,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:41:22,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:22,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:41:22,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:22,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:41:22,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:22,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 18:41:22,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:22,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:41:22,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:22,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 18:41:22,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:22,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:41:22,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:22,034 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-16 18:41:22,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:41:22,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768533844] [2024-11-16 18:41:22,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768533844] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:41:22,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:41:22,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 18:41:22,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061718976] [2024-11-16 18:41:22,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:41:22,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 18:41:22,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:41:22,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 18:41:22,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 18:41:22,042 INFO L87 Difference]: Start difference. First operand 111 states and 159 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-16 18:41:22,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:41:22,083 INFO L93 Difference]: Finished difference Result 217 states and 312 transitions. [2024-11-16 18:41:22,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 18:41:22,084 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 117 [2024-11-16 18:41:22,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:41:22,087 INFO L225 Difference]: With dead ends: 217 [2024-11-16 18:41:22,088 INFO L226 Difference]: Without dead ends: 109 [2024-11-16 18:41:22,088 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 18:41:22,090 INFO L432 NwaCegarLoop]: 154 mSDtfsCounter, 0 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 18:41:22,092 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 305 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 18:41:22,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-11-16 18:41:22,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2024-11-16 18:41:22,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 95 states have (on average 1.3789473684210527) internal successors, (131), 95 states have internal predecessors, (131), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-16 18:41:22,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 155 transitions. [2024-11-16 18:41:22,108 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 155 transitions. Word has length 117 [2024-11-16 18:41:22,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:41:22,109 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 155 transitions. [2024-11-16 18:41:22,109 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-16 18:41:22,110 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 155 transitions. [2024-11-16 18:41:22,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-16 18:41:22,111 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:41:22,111 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:41:22,111 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 18:41:22,112 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:41:22,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:41:22,115 INFO L85 PathProgramCache]: Analyzing trace with hash -385437760, now seen corresponding path program 1 times [2024-11-16 18:41:22,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:41:22,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093421861] [2024-11-16 18:41:22,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:41:22,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:41:22,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:23,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:41:23,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:23,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:41:23,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:23,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:41:23,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:23,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:41:23,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:23,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:41:23,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:23,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:41:23,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:23,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:41:23,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:23,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:41:23,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:23,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 18:41:23,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:23,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:41:23,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:23,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 18:41:23,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:23,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:41:23,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:23,763 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-16 18:41:23,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:41:23,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093421861] [2024-11-16 18:41:23,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093421861] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:41:23,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:41:23,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 18:41:23,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597544254] [2024-11-16 18:41:23,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:41:23,767 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 18:41:23,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:41:23,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 18:41:23,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 18:41:23,769 INFO L87 Difference]: Start difference. First operand 109 states and 155 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-16 18:41:24,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:41:24,065 INFO L93 Difference]: Finished difference Result 322 states and 461 transitions. [2024-11-16 18:41:24,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 18:41:24,067 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 117 [2024-11-16 18:41:24,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:41:24,070 INFO L225 Difference]: With dead ends: 322 [2024-11-16 18:41:24,072 INFO L226 Difference]: Without dead ends: 216 [2024-11-16 18:41:24,073 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 35 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 18:41:24,074 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 100 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 18:41:24,077 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 246 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 18:41:24,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2024-11-16 18:41:24,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 211. [2024-11-16 18:41:24,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 184 states have (on average 1.3804347826086956) internal successors, (254), 184 states have internal predecessors, (254), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-16 18:41:24,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 302 transitions. [2024-11-16 18:41:24,114 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 302 transitions. Word has length 117 [2024-11-16 18:41:24,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:41:24,114 INFO L471 AbstractCegarLoop]: Abstraction has 211 states and 302 transitions. [2024-11-16 18:41:24,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-16 18:41:24,115 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 302 transitions. [2024-11-16 18:41:24,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-16 18:41:24,117 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:41:24,118 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:41:24,118 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 18:41:24,118 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:41:24,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:41:24,119 INFO L85 PathProgramCache]: Analyzing trace with hash 1500401318, now seen corresponding path program 1 times [2024-11-16 18:41:24,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:41:24,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464836766] [2024-11-16 18:41:24,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:41:24,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:41:24,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:25,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:41:25,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:25,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:41:25,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:25,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:41:25,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:25,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:41:25,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:25,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:41:25,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:25,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:41:25,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:25,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:41:25,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:25,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:41:25,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:25,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 18:41:25,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:25,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:41:25,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:25,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 18:41:25,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:25,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:41:25,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:25,383 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-16 18:41:25,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:41:25,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464836766] [2024-11-16 18:41:25,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464836766] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:41:25,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:41:25,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 18:41:25,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768334937] [2024-11-16 18:41:25,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:41:25,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 18:41:25,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:41:25,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 18:41:25,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 18:41:25,388 INFO L87 Difference]: Start difference. First operand 211 states and 302 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-16 18:41:25,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:41:25,631 INFO L93 Difference]: Finished difference Result 425 states and 608 transitions. [2024-11-16 18:41:25,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 18:41:25,632 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 118 [2024-11-16 18:41:25,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:41:25,634 INFO L225 Difference]: With dead ends: 425 [2024-11-16 18:41:25,634 INFO L226 Difference]: Without dead ends: 217 [2024-11-16 18:41:25,635 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 37 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 18:41:25,636 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 93 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 18:41:25,637 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 322 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 18:41:25,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2024-11-16 18:41:25,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 212. [2024-11-16 18:41:25,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 185 states have (on average 1.372972972972973) internal successors, (254), 185 states have internal predecessors, (254), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-16 18:41:25,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 302 transitions. [2024-11-16 18:41:25,650 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 302 transitions. Word has length 118 [2024-11-16 18:41:25,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:41:25,651 INFO L471 AbstractCegarLoop]: Abstraction has 212 states and 302 transitions. [2024-11-16 18:41:25,651 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-16 18:41:25,652 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 302 transitions. [2024-11-16 18:41:25,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-16 18:41:25,654 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:41:25,654 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:41:25,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 18:41:25,654 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:41:25,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:41:25,655 INFO L85 PathProgramCache]: Analyzing trace with hash -1909632254, now seen corresponding path program 1 times [2024-11-16 18:41:25,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:41:25,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041710718] [2024-11-16 18:41:25,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:41:25,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:41:25,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:26,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:41:26,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:26,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:41:26,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:26,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:41:26,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:26,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:41:26,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:26,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:41:26,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:26,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:41:26,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:26,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:41:26,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:26,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:41:26,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:26,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 18:41:26,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:26,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:41:26,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:26,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 18:41:26,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:26,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:41:26,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:26,179 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-16 18:41:26,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:41:26,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041710718] [2024-11-16 18:41:26,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041710718] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:41:26,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:41:26,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 18:41:26,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168770788] [2024-11-16 18:41:26,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:41:26,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 18:41:26,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:41:26,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 18:41:26,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 18:41:26,182 INFO L87 Difference]: Start difference. First operand 212 states and 302 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-16 18:41:26,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:41:26,501 INFO L93 Difference]: Finished difference Result 430 states and 603 transitions. [2024-11-16 18:41:26,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 18:41:26,501 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 119 [2024-11-16 18:41:26,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:41:26,503 INFO L225 Difference]: With dead ends: 430 [2024-11-16 18:41:26,504 INFO L226 Difference]: Without dead ends: 322 [2024-11-16 18:41:26,504 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-16 18:41:26,505 INFO L432 NwaCegarLoop]: 182 mSDtfsCounter, 66 mSDsluCounter, 950 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 1132 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 18:41:26,505 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 1132 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 18:41:26,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2024-11-16 18:41:26,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 317. [2024-11-16 18:41:26,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 280 states have (on average 1.3571428571428572) internal successors, (380), 282 states have internal predecessors, (380), 32 states have call successors, (32), 4 states have call predecessors, (32), 4 states have return successors, (32), 30 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-16 18:41:26,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 444 transitions. [2024-11-16 18:41:26,524 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 444 transitions. Word has length 119 [2024-11-16 18:41:26,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:41:26,525 INFO L471 AbstractCegarLoop]: Abstraction has 317 states and 444 transitions. [2024-11-16 18:41:26,525 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-16 18:41:26,525 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 444 transitions. [2024-11-16 18:41:26,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-16 18:41:26,527 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:41:26,527 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:41:26,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 18:41:26,527 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:41:26,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:41:26,528 INFO L85 PathProgramCache]: Analyzing trace with hash 1495012260, now seen corresponding path program 1 times [2024-11-16 18:41:26,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:41:26,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317608013] [2024-11-16 18:41:26,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:41:26,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:41:26,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:26,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:41:26,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:26,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:41:26,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:26,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:41:26,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:26,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:41:26,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:26,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:41:26,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:26,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:41:26,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:26,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:41:26,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:26,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:41:26,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:26,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 18:41:26,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:27,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:41:27,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:27,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 18:41:27,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:27,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:41:27,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:27,007 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-16 18:41:27,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:41:27,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317608013] [2024-11-16 18:41:27,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317608013] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:41:27,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:41:27,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 18:41:27,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96513477] [2024-11-16 18:41:27,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:41:27,008 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 18:41:27,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:41:27,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 18:41:27,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-16 18:41:27,012 INFO L87 Difference]: Start difference. First operand 317 states and 444 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-16 18:41:27,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:41:27,409 INFO L93 Difference]: Finished difference Result 649 states and 908 transitions. [2024-11-16 18:41:27,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 18:41:27,410 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 120 [2024-11-16 18:41:27,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:41:27,414 INFO L225 Difference]: With dead ends: 649 [2024-11-16 18:41:27,414 INFO L226 Difference]: Without dead ends: 487 [2024-11-16 18:41:27,415 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-16 18:41:27,416 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 151 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 18:41:27,416 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 400 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 18:41:27,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2024-11-16 18:41:27,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 470. [2024-11-16 18:41:27,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 470 states, 415 states have (on average 1.3590361445783132) internal successors, (564), 418 states have internal predecessors, (564), 48 states have call successors, (48), 6 states have call predecessors, (48), 6 states have return successors, (48), 45 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-16 18:41:27,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 660 transitions. [2024-11-16 18:41:27,458 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 660 transitions. Word has length 120 [2024-11-16 18:41:27,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:41:27,460 INFO L471 AbstractCegarLoop]: Abstraction has 470 states and 660 transitions. [2024-11-16 18:41:27,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-16 18:41:27,460 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 660 transitions. [2024-11-16 18:41:27,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-16 18:41:27,462 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:41:27,462 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:41:27,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 18:41:27,462 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:41:27,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:41:27,463 INFO L85 PathProgramCache]: Analyzing trace with hash 1706363173, now seen corresponding path program 1 times [2024-11-16 18:41:27,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:41:27,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729016804] [2024-11-16 18:41:27,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:41:27,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:41:27,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:28,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:41:28,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:28,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:41:28,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:28,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:41:28,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:28,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:41:28,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:28,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:41:28,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:28,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:41:28,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:28,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:41:28,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:28,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:41:28,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:28,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 18:41:28,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:28,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:41:28,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:28,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 18:41:28,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:28,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:41:28,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:28,621 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-16 18:41:28,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:41:28,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729016804] [2024-11-16 18:41:28,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729016804] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:41:28,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:41:28,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 18:41:28,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819036993] [2024-11-16 18:41:28,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:41:28,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 18:41:28,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:41:28,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 18:41:28,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 18:41:28,624 INFO L87 Difference]: Start difference. First operand 470 states and 660 transitions. Second operand has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-16 18:41:29,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:41:29,005 INFO L93 Difference]: Finished difference Result 1209 states and 1693 transitions. [2024-11-16 18:41:29,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 18:41:29,006 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 120 [2024-11-16 18:41:29,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:41:29,011 INFO L225 Difference]: With dead ends: 1209 [2024-11-16 18:41:29,011 INFO L226 Difference]: Without dead ends: 742 [2024-11-16 18:41:29,012 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-16 18:41:29,014 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 59 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 18:41:29,015 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 480 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 18:41:29,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 742 states. [2024-11-16 18:41:29,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 742 to 531. [2024-11-16 18:41:29,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 476 states have (on average 1.3571428571428572) internal successors, (646), 479 states have internal predecessors, (646), 48 states have call successors, (48), 6 states have call predecessors, (48), 6 states have return successors, (48), 45 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-16 18:41:29,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 742 transitions. [2024-11-16 18:41:29,047 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 742 transitions. Word has length 120 [2024-11-16 18:41:29,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:41:29,048 INFO L471 AbstractCegarLoop]: Abstraction has 531 states and 742 transitions. [2024-11-16 18:41:29,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-16 18:41:29,048 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 742 transitions. [2024-11-16 18:41:29,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-16 18:41:29,050 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:41:29,050 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:41:29,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 18:41:29,051 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:41:29,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:41:29,051 INFO L85 PathProgramCache]: Analyzing trace with hash -1275399219, now seen corresponding path program 1 times [2024-11-16 18:41:29,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:41:29,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006948335] [2024-11-16 18:41:29,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:41:29,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:41:29,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:29,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:41:29,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:29,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:41:29,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:29,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:41:29,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:29,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:41:29,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:29,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:41:29,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:29,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:41:29,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:29,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:41:29,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:29,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:41:29,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:29,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 18:41:29,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:29,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:41:29,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:29,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 18:41:29,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:29,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:41:29,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:29,462 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-16 18:41:29,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:41:29,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006948335] [2024-11-16 18:41:29,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006948335] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:41:29,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:41:29,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 18:41:29,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025361413] [2024-11-16 18:41:29,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:41:29,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 18:41:29,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:41:29,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 18:41:29,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-16 18:41:29,465 INFO L87 Difference]: Start difference. First operand 531 states and 742 transitions. Second operand has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-16 18:41:29,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:41:29,949 INFO L93 Difference]: Finished difference Result 1422 states and 2000 transitions. [2024-11-16 18:41:29,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 18:41:29,950 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 120 [2024-11-16 18:41:29,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:41:29,955 INFO L225 Difference]: With dead ends: 1422 [2024-11-16 18:41:29,955 INFO L226 Difference]: Without dead ends: 894 [2024-11-16 18:41:29,958 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-16 18:41:29,959 INFO L432 NwaCegarLoop]: 189 mSDtfsCounter, 134 mSDsluCounter, 1190 mSDsCounter, 0 mSdLazyCounter, 619 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 1379 SdHoareTripleChecker+Invalid, 630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 18:41:29,959 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 1379 Invalid, 630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 619 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 18:41:29,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2024-11-16 18:41:30,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 891. [2024-11-16 18:41:30,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 891 states, 797 states have (on average 1.3651191969887078) internal successors, (1088), 800 states have internal predecessors, (1088), 84 states have call successors, (84), 9 states have call predecessors, (84), 9 states have return successors, (84), 81 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-16 18:41:30,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 891 states to 891 states and 1256 transitions. [2024-11-16 18:41:30,007 INFO L78 Accepts]: Start accepts. Automaton has 891 states and 1256 transitions. Word has length 120 [2024-11-16 18:41:30,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:41:30,008 INFO L471 AbstractCegarLoop]: Abstraction has 891 states and 1256 transitions. [2024-11-16 18:41:30,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-16 18:41:30,008 INFO L276 IsEmpty]: Start isEmpty. Operand 891 states and 1256 transitions. [2024-11-16 18:41:30,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-16 18:41:30,010 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:41:30,010 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:41:30,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 18:41:30,010 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:41:30,011 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:41:30,011 INFO L85 PathProgramCache]: Analyzing trace with hash -1028918198, now seen corresponding path program 1 times [2024-11-16 18:41:30,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:41:30,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973315258] [2024-11-16 18:41:30,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:41:30,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:41:30,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:30,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:41:30,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:30,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:41:30,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:30,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:41:30,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:30,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:41:30,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:30,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:41:30,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:30,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:41:30,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:30,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:41:30,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:30,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:41:30,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:30,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 18:41:30,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:30,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:41:30,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:30,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 18:41:30,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:30,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:41:30,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:30,948 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-16 18:41:30,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:41:30,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973315258] [2024-11-16 18:41:30,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973315258] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:41:30,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:41:30,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-16 18:41:30,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783799173] [2024-11-16 18:41:30,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:41:30,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-16 18:41:30,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:41:30,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-16 18:41:30,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-16 18:41:30,950 INFO L87 Difference]: Start difference. First operand 891 states and 1256 transitions. Second operand has 12 states, 12 states have (on average 5.25) internal successors, (63), 12 states have internal predecessors, (63), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-16 18:41:32,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:41:32,794 INFO L93 Difference]: Finished difference Result 3403 states and 4787 transitions. [2024-11-16 18:41:32,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-16 18:41:32,795 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.25) internal successors, (63), 12 states have internal predecessors, (63), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 120 [2024-11-16 18:41:32,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:41:32,806 INFO L225 Difference]: With dead ends: 3403 [2024-11-16 18:41:32,806 INFO L226 Difference]: Without dead ends: 2803 [2024-11-16 18:41:32,808 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=176, Invalid=526, Unknown=0, NotChecked=0, Total=702 [2024-11-16 18:41:32,809 INFO L432 NwaCegarLoop]: 258 mSDtfsCounter, 952 mSDsluCounter, 1564 mSDsCounter, 0 mSdLazyCounter, 1885 mSolverCounterSat, 194 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 952 SdHoareTripleChecker+Valid, 1822 SdHoareTripleChecker+Invalid, 2079 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 194 IncrementalHoareTripleChecker+Valid, 1885 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-16 18:41:32,809 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [952 Valid, 1822 Invalid, 2079 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [194 Valid, 1885 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-16 18:41:32,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2803 states. [2024-11-16 18:41:32,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2803 to 909. [2024-11-16 18:41:32,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 909 states, 815 states have (on average 1.3668711656441719) internal successors, (1114), 818 states have internal predecessors, (1114), 84 states have call successors, (84), 9 states have call predecessors, (84), 9 states have return successors, (84), 81 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-16 18:41:32,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 909 states to 909 states and 1282 transitions. [2024-11-16 18:41:32,868 INFO L78 Accepts]: Start accepts. Automaton has 909 states and 1282 transitions. Word has length 120 [2024-11-16 18:41:32,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:41:32,868 INFO L471 AbstractCegarLoop]: Abstraction has 909 states and 1282 transitions. [2024-11-16 18:41:32,869 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.25) internal successors, (63), 12 states have internal predecessors, (63), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-16 18:41:32,869 INFO L276 IsEmpty]: Start isEmpty. Operand 909 states and 1282 transitions. [2024-11-16 18:41:32,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-16 18:41:32,870 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:41:32,870 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:41:32,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 18:41:32,871 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:41:32,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:41:32,871 INFO L85 PathProgramCache]: Analyzing trace with hash -1283654743, now seen corresponding path program 1 times [2024-11-16 18:41:32,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:41:32,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184250115] [2024-11-16 18:41:32,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:41:32,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:41:32,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:33,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:41:33,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:33,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:41:33,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:33,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:41:33,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:33,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:41:33,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:33,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:41:33,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:33,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:41:33,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:33,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:41:33,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:33,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:41:33,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:33,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 18:41:33,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:33,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:41:33,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:33,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 18:41:33,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:33,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:41:33,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:33,700 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-16 18:41:33,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:41:33,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184250115] [2024-11-16 18:41:33,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184250115] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:41:33,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:41:33,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 18:41:33,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41778143] [2024-11-16 18:41:33,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:41:33,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 18:41:33,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:41:33,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 18:41:33,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 18:41:33,702 INFO L87 Difference]: Start difference. First operand 909 states and 1282 transitions. Second operand has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-16 18:41:34,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:41:34,122 INFO L93 Difference]: Finished difference Result 1823 states and 2558 transitions. [2024-11-16 18:41:34,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 18:41:34,123 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 120 [2024-11-16 18:41:34,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:41:34,129 INFO L225 Difference]: With dead ends: 1823 [2024-11-16 18:41:34,129 INFO L226 Difference]: Without dead ends: 1211 [2024-11-16 18:41:34,132 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-16 18:41:34,133 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 65 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 619 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 18:41:34,133 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 619 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 18:41:34,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1211 states. [2024-11-16 18:41:34,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1211 to 887. [2024-11-16 18:41:34,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 887 states, 793 states have (on average 1.3568726355611602) internal successors, (1076), 796 states have internal predecessors, (1076), 84 states have call successors, (84), 9 states have call predecessors, (84), 9 states have return successors, (84), 81 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-16 18:41:34,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 887 states to 887 states and 1244 transitions. [2024-11-16 18:41:34,177 INFO L78 Accepts]: Start accepts. Automaton has 887 states and 1244 transitions. Word has length 120 [2024-11-16 18:41:34,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:41:34,178 INFO L471 AbstractCegarLoop]: Abstraction has 887 states and 1244 transitions. [2024-11-16 18:41:34,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-16 18:41:34,178 INFO L276 IsEmpty]: Start isEmpty. Operand 887 states and 1244 transitions. [2024-11-16 18:41:34,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-16 18:41:34,180 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:41:34,180 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:41:34,180 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 18:41:34,180 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:41:34,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:41:34,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1257615063, now seen corresponding path program 1 times [2024-11-16 18:41:34,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:41:34,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889373147] [2024-11-16 18:41:34,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:41:34,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:41:34,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:34,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:41:34,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:34,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:41:34,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:34,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:41:34,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:34,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:41:34,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:34,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:41:34,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:34,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:41:34,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:34,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:41:34,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:34,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:41:34,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:34,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 18:41:34,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:34,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:41:34,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:34,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 18:41:34,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:34,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:41:34,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:34,989 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-16 18:41:34,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:41:34,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889373147] [2024-11-16 18:41:34,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889373147] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:41:34,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:41:34,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 18:41:34,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224007361] [2024-11-16 18:41:34,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:41:34,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 18:41:34,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:41:34,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 18:41:34,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 18:41:34,992 INFO L87 Difference]: Start difference. First operand 887 states and 1244 transitions. Second operand has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-16 18:41:35,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:41:35,332 INFO L93 Difference]: Finished difference Result 2087 states and 2913 transitions. [2024-11-16 18:41:35,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 18:41:35,332 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 121 [2024-11-16 18:41:35,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:41:35,338 INFO L225 Difference]: With dead ends: 2087 [2024-11-16 18:41:35,338 INFO L226 Difference]: Without dead ends: 1203 [2024-11-16 18:41:35,339 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-16 18:41:35,340 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 64 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 18:41:35,340 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 455 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 18:41:35,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1203 states. [2024-11-16 18:41:35,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1203 to 883. [2024-11-16 18:41:35,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 883 states, 789 states have (on average 1.3460076045627376) internal successors, (1062), 792 states have internal predecessors, (1062), 84 states have call successors, (84), 9 states have call predecessors, (84), 9 states have return successors, (84), 81 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-16 18:41:35,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 1230 transitions. [2024-11-16 18:41:35,389 INFO L78 Accepts]: Start accepts. Automaton has 883 states and 1230 transitions. Word has length 121 [2024-11-16 18:41:35,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:41:35,389 INFO L471 AbstractCegarLoop]: Abstraction has 883 states and 1230 transitions. [2024-11-16 18:41:35,389 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-16 18:41:35,389 INFO L276 IsEmpty]: Start isEmpty. Operand 883 states and 1230 transitions. [2024-11-16 18:41:35,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-16 18:41:35,391 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:41:35,391 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:41:35,391 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 18:41:35,391 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:41:35,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:41:35,392 INFO L85 PathProgramCache]: Analyzing trace with hash 883282307, now seen corresponding path program 1 times [2024-11-16 18:41:35,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:41:35,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580089994] [2024-11-16 18:41:35,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:41:35,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:41:35,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:35,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:41:35,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:35,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:41:35,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:35,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:41:35,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:35,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:41:35,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:35,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:41:35,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:35,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:41:35,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:35,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:41:35,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:35,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:41:35,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:35,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 18:41:35,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:35,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:41:35,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:35,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 18:41:35,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:35,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:41:35,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:35,600 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-16 18:41:35,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:41:35,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580089994] [2024-11-16 18:41:35,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580089994] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:41:35,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:41:35,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 18:41:35,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268935051] [2024-11-16 18:41:35,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:41:35,605 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 18:41:35,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:41:35,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 18:41:35,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 18:41:35,606 INFO L87 Difference]: Start difference. First operand 883 states and 1230 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-16 18:41:35,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:41:35,858 INFO L93 Difference]: Finished difference Result 1737 states and 2419 transitions. [2024-11-16 18:41:35,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 18:41:35,859 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 121 [2024-11-16 18:41:35,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:41:35,862 INFO L225 Difference]: With dead ends: 1737 [2024-11-16 18:41:35,863 INFO L226 Difference]: Without dead ends: 845 [2024-11-16 18:41:35,864 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 26 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 18:41:35,864 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 61 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 399 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 18:41:35,865 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 399 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 18:41:35,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 845 states. [2024-11-16 18:41:35,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 845 to 789. [2024-11-16 18:41:35,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 789 states, 695 states have (on average 1.3410071942446042) internal successors, (932), 698 states have internal predecessors, (932), 84 states have call successors, (84), 9 states have call predecessors, (84), 9 states have return successors, (84), 81 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-16 18:41:35,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 789 states and 1100 transitions. [2024-11-16 18:41:35,929 INFO L78 Accepts]: Start accepts. Automaton has 789 states and 1100 transitions. Word has length 121 [2024-11-16 18:41:35,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:41:35,929 INFO L471 AbstractCegarLoop]: Abstraction has 789 states and 1100 transitions. [2024-11-16 18:41:35,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-16 18:41:35,930 INFO L276 IsEmpty]: Start isEmpty. Operand 789 states and 1100 transitions. [2024-11-16 18:41:35,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-16 18:41:35,931 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:41:35,931 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:41:35,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 18:41:35,932 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:41:35,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:41:35,932 INFO L85 PathProgramCache]: Analyzing trace with hash 548360670, now seen corresponding path program 1 times [2024-11-16 18:41:35,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:41:35,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330969074] [2024-11-16 18:41:35,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:41:35,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:41:35,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:37,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:41:37,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:37,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:41:37,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:37,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:41:37,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:37,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:41:37,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:37,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:41:37,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:37,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:41:37,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:37,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:41:37,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:37,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:41:37,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:37,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 18:41:37,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:37,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:41:37,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:37,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 18:41:37,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:37,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:41:37,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:37,038 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-16 18:41:37,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:41:37,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330969074] [2024-11-16 18:41:37,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330969074] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:41:37,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:41:37,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 18:41:37,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543438482] [2024-11-16 18:41:37,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:41:37,040 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 18:41:37,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:41:37,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 18:41:37,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-16 18:41:37,041 INFO L87 Difference]: Start difference. First operand 789 states and 1100 transitions. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-16 18:41:38,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:41:38,011 INFO L93 Difference]: Finished difference Result 1705 states and 2369 transitions. [2024-11-16 18:41:38,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 18:41:38,012 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 121 [2024-11-16 18:41:38,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:41:38,016 INFO L225 Difference]: With dead ends: 1705 [2024-11-16 18:41:38,016 INFO L226 Difference]: Without dead ends: 919 [2024-11-16 18:41:38,018 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2024-11-16 18:41:38,018 INFO L432 NwaCegarLoop]: 149 mSDtfsCounter, 327 mSDsluCounter, 480 mSDsCounter, 0 mSdLazyCounter, 747 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 327 SdHoareTripleChecker+Valid, 629 SdHoareTripleChecker+Invalid, 807 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 18:41:38,019 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [327 Valid, 629 Invalid, 807 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 747 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 18:41:38,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 919 states. [2024-11-16 18:41:38,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 919 to 796. [2024-11-16 18:41:38,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 796 states, 702 states have (on average 1.3376068376068375) internal successors, (939), 705 states have internal predecessors, (939), 84 states have call successors, (84), 9 states have call predecessors, (84), 9 states have return successors, (84), 81 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-16 18:41:38,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 796 states to 796 states and 1107 transitions. [2024-11-16 18:41:38,059 INFO L78 Accepts]: Start accepts. Automaton has 796 states and 1107 transitions. Word has length 121 [2024-11-16 18:41:38,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:41:38,059 INFO L471 AbstractCegarLoop]: Abstraction has 796 states and 1107 transitions. [2024-11-16 18:41:38,059 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-16 18:41:38,060 INFO L276 IsEmpty]: Start isEmpty. Operand 796 states and 1107 transitions. [2024-11-16 18:41:38,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-16 18:41:38,061 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:41:38,061 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:41:38,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 18:41:38,061 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:41:38,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:41:38,062 INFO L85 PathProgramCache]: Analyzing trace with hash 1241462367, now seen corresponding path program 1 times [2024-11-16 18:41:38,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:41:38,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417855568] [2024-11-16 18:41:38,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:41:38,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:41:38,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:39,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:41:39,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:39,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:41:39,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:39,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:41:39,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:39,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:41:39,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:39,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:41:39,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:39,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:41:39,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:39,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:41:39,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:39,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:41:39,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:39,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 18:41:39,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:39,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:41:39,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:39,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 18:41:39,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:39,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:41:39,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:39,330 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-16 18:41:39,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:41:39,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417855568] [2024-11-16 18:41:39,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417855568] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:41:39,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:41:39,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 18:41:39,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191648099] [2024-11-16 18:41:39,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:41:39,331 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 18:41:39,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:41:39,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 18:41:39,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-16 18:41:39,332 INFO L87 Difference]: Start difference. First operand 796 states and 1107 transitions. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-16 18:41:40,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:41:40,212 INFO L93 Difference]: Finished difference Result 1759 states and 2446 transitions. [2024-11-16 18:41:40,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 18:41:40,213 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 121 [2024-11-16 18:41:40,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:41:40,217 INFO L225 Difference]: With dead ends: 1759 [2024-11-16 18:41:40,217 INFO L226 Difference]: Without dead ends: 966 [2024-11-16 18:41:40,218 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2024-11-16 18:41:40,219 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 195 mSDsluCounter, 511 mSDsCounter, 0 mSdLazyCounter, 798 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 671 SdHoareTripleChecker+Invalid, 834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 798 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 18:41:40,219 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 671 Invalid, 834 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 798 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 18:41:40,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 966 states. [2024-11-16 18:41:40,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 966 to 804. [2024-11-16 18:41:40,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 804 states, 710 states have (on average 1.3338028169014085) internal successors, (947), 713 states have internal predecessors, (947), 84 states have call successors, (84), 9 states have call predecessors, (84), 9 states have return successors, (84), 81 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-16 18:41:40,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 804 states to 804 states and 1115 transitions. [2024-11-16 18:41:40,265 INFO L78 Accepts]: Start accepts. Automaton has 804 states and 1115 transitions. Word has length 121 [2024-11-16 18:41:40,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:41:40,266 INFO L471 AbstractCegarLoop]: Abstraction has 804 states and 1115 transitions. [2024-11-16 18:41:40,266 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-16 18:41:40,266 INFO L276 IsEmpty]: Start isEmpty. Operand 804 states and 1115 transitions. [2024-11-16 18:41:40,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-16 18:41:40,267 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:41:40,267 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:41:40,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 18:41:40,267 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:41:40,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:41:40,268 INFO L85 PathProgramCache]: Analyzing trace with hash -2146946705, now seen corresponding path program 1 times [2024-11-16 18:41:40,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:41:40,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436546484] [2024-11-16 18:41:40,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:41:40,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:41:40,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:41,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:41:41,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:41,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:41:41,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:41,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:41:41,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:41,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:41:41,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:41,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:41:41,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:41,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:41:41,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:41,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:41:41,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:41,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:41:41,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:41,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 18:41:41,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:41,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:41:41,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:41,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 18:41:41,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:41,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:41:41,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:41,365 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-16 18:41:41,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:41:41,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436546484] [2024-11-16 18:41:41,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436546484] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:41:41,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:41:41,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 18:41:41,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913660728] [2024-11-16 18:41:41,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:41:41,366 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 18:41:41,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:41:41,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 18:41:41,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-16 18:41:41,367 INFO L87 Difference]: Start difference. First operand 804 states and 1115 transitions. Second operand has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-16 18:41:42,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:41:42,192 INFO L93 Difference]: Finished difference Result 1747 states and 2419 transitions. [2024-11-16 18:41:42,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 18:41:42,194 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 122 [2024-11-16 18:41:42,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:41:42,199 INFO L225 Difference]: With dead ends: 1747 [2024-11-16 18:41:42,201 INFO L226 Difference]: Without dead ends: 946 [2024-11-16 18:41:42,202 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2024-11-16 18:41:42,203 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 304 mSDsluCounter, 519 mSDsCounter, 0 mSdLazyCounter, 818 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 661 SdHoareTripleChecker+Invalid, 860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 18:41:42,203 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [304 Valid, 661 Invalid, 860 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 818 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 18:41:42,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 946 states. [2024-11-16 18:41:42,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 946 to 812. [2024-11-16 18:41:42,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 812 states, 718 states have (on average 1.3328690807799444) internal successors, (957), 721 states have internal predecessors, (957), 84 states have call successors, (84), 9 states have call predecessors, (84), 9 states have return successors, (84), 81 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-16 18:41:42,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 812 states to 812 states and 1125 transitions. [2024-11-16 18:41:42,247 INFO L78 Accepts]: Start accepts. Automaton has 812 states and 1125 transitions. Word has length 122 [2024-11-16 18:41:42,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:41:42,247 INFO L471 AbstractCegarLoop]: Abstraction has 812 states and 1125 transitions. [2024-11-16 18:41:42,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-16 18:41:42,248 INFO L276 IsEmpty]: Start isEmpty. Operand 812 states and 1125 transitions. [2024-11-16 18:41:42,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-16 18:41:42,249 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:41:42,249 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:41:42,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 18:41:42,250 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:41:42,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:41:42,250 INFO L85 PathProgramCache]: Analyzing trace with hash -793637008, now seen corresponding path program 1 times [2024-11-16 18:41:42,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:41:42,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616666496] [2024-11-16 18:41:42,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:41:42,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:41:42,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:43,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:41:43,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:43,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:41:43,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:43,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:41:43,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:43,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:41:43,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:43,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:41:43,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:43,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:41:43,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:43,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:41:43,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:43,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:41:43,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:43,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 18:41:43,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:43,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:41:43,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:43,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 18:41:43,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:43,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:41:43,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:43,254 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-16 18:41:43,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:41:43,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616666496] [2024-11-16 18:41:43,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616666496] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:41:43,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:41:43,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 18:41:43,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719557800] [2024-11-16 18:41:43,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:41:43,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 18:41:43,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:41:43,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 18:41:43,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-16 18:41:43,259 INFO L87 Difference]: Start difference. First operand 812 states and 1125 transitions. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-16 18:41:43,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:41:43,921 INFO L93 Difference]: Finished difference Result 1726 states and 2388 transitions. [2024-11-16 18:41:43,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 18:41:43,922 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 122 [2024-11-16 18:41:43,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:41:43,926 INFO L225 Difference]: With dead ends: 1726 [2024-11-16 18:41:43,926 INFO L226 Difference]: Without dead ends: 917 [2024-11-16 18:41:43,928 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2024-11-16 18:41:43,930 INFO L432 NwaCegarLoop]: 148 mSDtfsCounter, 309 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 582 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 524 SdHoareTripleChecker+Invalid, 640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 18:41:43,930 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [309 Valid, 524 Invalid, 640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 582 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 18:41:43,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 917 states. [2024-11-16 18:41:43,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 917 to 812. [2024-11-16 18:41:43,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 812 states, 718 states have (on average 1.3328690807799444) internal successors, (957), 721 states have internal predecessors, (957), 84 states have call successors, (84), 9 states have call predecessors, (84), 9 states have return successors, (84), 81 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-16 18:41:43,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 812 states to 812 states and 1125 transitions. [2024-11-16 18:41:43,973 INFO L78 Accepts]: Start accepts. Automaton has 812 states and 1125 transitions. Word has length 122 [2024-11-16 18:41:43,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:41:43,973 INFO L471 AbstractCegarLoop]: Abstraction has 812 states and 1125 transitions. [2024-11-16 18:41:43,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-16 18:41:43,974 INFO L276 IsEmpty]: Start isEmpty. Operand 812 states and 1125 transitions. [2024-11-16 18:41:43,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-16 18:41:43,975 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:41:43,975 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:41:43,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 18:41:43,976 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:41:43,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:41:43,976 INFO L85 PathProgramCache]: Analyzing trace with hash -2135630578, now seen corresponding path program 1 times [2024-11-16 18:41:43,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:41:43,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237138791] [2024-11-16 18:41:43,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:41:43,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:41:44,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:45,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:41:45,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:45,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:41:45,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:45,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:41:45,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:45,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:41:45,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:45,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:41:45,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:45,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:41:45,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:45,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:41:45,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:45,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:41:45,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:45,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 18:41:45,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:45,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:41:45,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:45,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 18:41:45,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:45,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:41:45,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:45,789 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-16 18:41:45,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:41:45,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237138791] [2024-11-16 18:41:45,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237138791] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:41:45,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:41:45,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-16 18:41:45,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285302948] [2024-11-16 18:41:45,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:41:45,791 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-16 18:41:45,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:41:45,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-16 18:41:45,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-16 18:41:45,792 INFO L87 Difference]: Start difference. First operand 812 states and 1125 transitions. Second operand has 13 states, 12 states have (on average 5.416666666666667) internal successors, (65), 13 states have internal predecessors, (65), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-16 18:41:47,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:41:47,638 INFO L93 Difference]: Finished difference Result 1779 states and 2465 transitions. [2024-11-16 18:41:47,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-16 18:41:47,639 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.416666666666667) internal successors, (65), 13 states have internal predecessors, (65), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 122 [2024-11-16 18:41:47,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:41:47,644 INFO L225 Difference]: With dead ends: 1779 [2024-11-16 18:41:47,645 INFO L226 Difference]: Without dead ends: 970 [2024-11-16 18:41:47,646 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=158, Invalid=598, Unknown=0, NotChecked=0, Total=756 [2024-11-16 18:41:47,647 INFO L432 NwaCegarLoop]: 223 mSDtfsCounter, 553 mSDsluCounter, 1216 mSDsCounter, 0 mSdLazyCounter, 1896 mSolverCounterSat, 161 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 553 SdHoareTripleChecker+Valid, 1439 SdHoareTripleChecker+Invalid, 2057 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 161 IncrementalHoareTripleChecker+Valid, 1896 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-16 18:41:47,647 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [553 Valid, 1439 Invalid, 2057 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [161 Valid, 1896 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-16 18:41:47,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 970 states. [2024-11-16 18:41:47,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 970 to 804. [2024-11-16 18:41:47,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 804 states, 710 states have (on average 1.332394366197183) internal successors, (946), 713 states have internal predecessors, (946), 84 states have call successors, (84), 9 states have call predecessors, (84), 9 states have return successors, (84), 81 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-16 18:41:47,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 804 states to 804 states and 1114 transitions. [2024-11-16 18:41:47,696 INFO L78 Accepts]: Start accepts. Automaton has 804 states and 1114 transitions. Word has length 122 [2024-11-16 18:41:47,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:41:47,697 INFO L471 AbstractCegarLoop]: Abstraction has 804 states and 1114 transitions. [2024-11-16 18:41:47,697 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.416666666666667) internal successors, (65), 13 states have internal predecessors, (65), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-16 18:41:47,697 INFO L276 IsEmpty]: Start isEmpty. Operand 804 states and 1114 transitions. [2024-11-16 18:41:47,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-16 18:41:47,699 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:41:47,699 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:41:47,699 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-16 18:41:47,699 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:41:47,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:41:47,700 INFO L85 PathProgramCache]: Analyzing trace with hash -748354619, now seen corresponding path program 1 times [2024-11-16 18:41:47,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:41:47,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764883953] [2024-11-16 18:41:47,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:41:47,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:41:47,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:48,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:41:48,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:48,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:41:48,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:48,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:41:48,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:48,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:41:48,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:48,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:41:48,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:48,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:41:48,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:48,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:41:48,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:48,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:41:48,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:48,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 18:41:48,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:48,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:41:48,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:48,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 18:41:48,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:48,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:41:48,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:48,996 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-16 18:41:48,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:41:48,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764883953] [2024-11-16 18:41:48,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764883953] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:41:48,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:41:48,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-16 18:41:48,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006525659] [2024-11-16 18:41:48,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:41:48,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-16 18:41:48,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:41:48,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-16 18:41:48,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-16 18:41:48,998 INFO L87 Difference]: Start difference. First operand 804 states and 1114 transitions. Second operand has 11 states, 10 states have (on average 6.6) internal successors, (66), 11 states have internal predecessors, (66), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-16 18:41:51,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:41:51,911 INFO L93 Difference]: Finished difference Result 1692 states and 2347 transitions. [2024-11-16 18:41:51,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-16 18:41:51,912 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.6) internal successors, (66), 11 states have internal predecessors, (66), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 123 [2024-11-16 18:41:51,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:41:51,917 INFO L225 Difference]: With dead ends: 1692 [2024-11-16 18:41:51,917 INFO L226 Difference]: Without dead ends: 1158 [2024-11-16 18:41:51,918 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=269, Unknown=0, NotChecked=0, Total=342 [2024-11-16 18:41:51,919 INFO L432 NwaCegarLoop]: 235 mSDtfsCounter, 311 mSDsluCounter, 1166 mSDsCounter, 0 mSdLazyCounter, 1894 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 1401 SdHoareTripleChecker+Invalid, 1971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 1894 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-16 18:41:51,919 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [312 Valid, 1401 Invalid, 1971 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 1894 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-16 18:41:51,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1158 states. [2024-11-16 18:41:51,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1158 to 840. [2024-11-16 18:41:51,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 840 states, 746 states have (on average 1.3257372654155497) internal successors, (989), 749 states have internal predecessors, (989), 84 states have call successors, (84), 9 states have call predecessors, (84), 9 states have return successors, (84), 81 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-16 18:41:51,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 840 states to 840 states and 1157 transitions. [2024-11-16 18:41:51,980 INFO L78 Accepts]: Start accepts. Automaton has 840 states and 1157 transitions. Word has length 123 [2024-11-16 18:41:51,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:41:51,980 INFO L471 AbstractCegarLoop]: Abstraction has 840 states and 1157 transitions. [2024-11-16 18:41:51,981 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.6) internal successors, (66), 11 states have internal predecessors, (66), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-16 18:41:51,981 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states and 1157 transitions. [2024-11-16 18:41:51,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-16 18:41:51,983 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:41:51,983 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:41:51,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-16 18:41:51,983 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:41:51,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:41:51,984 INFO L85 PathProgramCache]: Analyzing trace with hash 213259398, now seen corresponding path program 1 times [2024-11-16 18:41:51,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:41:51,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431521858] [2024-11-16 18:41:51,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:41:51,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:41:52,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:53,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:41:53,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:53,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:41:53,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:53,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:41:53,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:53,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:41:53,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:53,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:41:53,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:53,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:41:53,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:53,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:41:53,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:53,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:41:53,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:53,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 18:41:53,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:53,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:41:53,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:53,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 18:41:53,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:53,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:41:53,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:53,269 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-16 18:41:53,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:41:53,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431521858] [2024-11-16 18:41:53,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431521858] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:41:53,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:41:53,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-16 18:41:53,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458386341] [2024-11-16 18:41:53,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:41:53,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-16 18:41:53,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:41:53,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-16 18:41:53,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-16 18:41:53,273 INFO L87 Difference]: Start difference. First operand 840 states and 1157 transitions. Second operand has 11 states, 10 states have (on average 6.6) internal successors, (66), 11 states have internal predecessors, (66), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-16 18:41:56,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:41:56,255 INFO L93 Difference]: Finished difference Result 1738 states and 2400 transitions. [2024-11-16 18:41:56,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-16 18:41:56,256 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.6) internal successors, (66), 11 states have internal predecessors, (66), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 123 [2024-11-16 18:41:56,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:41:56,261 INFO L225 Difference]: With dead ends: 1738 [2024-11-16 18:41:56,262 INFO L226 Difference]: Without dead ends: 1168 [2024-11-16 18:41:56,263 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2024-11-16 18:41:56,264 INFO L432 NwaCegarLoop]: 236 mSDtfsCounter, 311 mSDsluCounter, 1229 mSDsCounter, 0 mSdLazyCounter, 2002 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 1465 SdHoareTripleChecker+Invalid, 2079 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 2002 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-16 18:41:56,264 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [312 Valid, 1465 Invalid, 2079 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 2002 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-16 18:41:56,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1168 states. [2024-11-16 18:41:56,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1168 to 814. [2024-11-16 18:41:56,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 814 states, 720 states have (on average 1.3277777777777777) internal successors, (956), 723 states have internal predecessors, (956), 84 states have call successors, (84), 9 states have call predecessors, (84), 9 states have return successors, (84), 81 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-16 18:41:56,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 814 states to 814 states and 1124 transitions. [2024-11-16 18:41:56,334 INFO L78 Accepts]: Start accepts. Automaton has 814 states and 1124 transitions. Word has length 123 [2024-11-16 18:41:56,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:41:56,334 INFO L471 AbstractCegarLoop]: Abstraction has 814 states and 1124 transitions. [2024-11-16 18:41:56,335 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.6) internal successors, (66), 11 states have internal predecessors, (66), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-16 18:41:56,335 INFO L276 IsEmpty]: Start isEmpty. Operand 814 states and 1124 transitions. [2024-11-16 18:41:56,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-16 18:41:56,336 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:41:56,336 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:41:56,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-16 18:41:56,337 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:41:56,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:41:56,337 INFO L85 PathProgramCache]: Analyzing trace with hash -70828131, now seen corresponding path program 1 times [2024-11-16 18:41:56,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:41:56,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054193113] [2024-11-16 18:41:56,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:41:56,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:41:56,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:56,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:41:56,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:56,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:41:56,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:56,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:41:56,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:56,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:41:56,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:56,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:41:56,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:56,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:41:56,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:56,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:41:56,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:56,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:41:56,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:56,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 18:41:56,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:56,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:41:56,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:56,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 18:41:56,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:56,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:41:56,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:56,668 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-16 18:41:56,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:41:56,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054193113] [2024-11-16 18:41:56,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054193113] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:41:56,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:41:56,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-16 18:41:56,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346060662] [2024-11-16 18:41:56,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:41:56,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 18:41:56,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:41:56,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 18:41:56,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-16 18:41:56,670 INFO L87 Difference]: Start difference. First operand 814 states and 1124 transitions. Second operand has 10 states, 10 states have (on average 6.6) internal successors, (66), 10 states have internal predecessors, (66), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-16 18:41:56,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:41:56,976 INFO L93 Difference]: Finished difference Result 1661 states and 2288 transitions. [2024-11-16 18:41:56,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-16 18:41:56,977 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.6) internal successors, (66), 10 states have internal predecessors, (66), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 123 [2024-11-16 18:41:56,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:41:56,982 INFO L225 Difference]: With dead ends: 1661 [2024-11-16 18:41:56,982 INFO L226 Difference]: Without dead ends: 850 [2024-11-16 18:41:56,984 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2024-11-16 18:41:56,985 INFO L432 NwaCegarLoop]: 186 mSDtfsCounter, 65 mSDsluCounter, 1326 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 1512 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 18:41:56,985 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 1512 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 18:41:56,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 850 states. [2024-11-16 18:41:57,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 850 to 833. [2024-11-16 18:41:57,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 833 states, 739 states have (on average 1.3179972936400541) internal successors, (974), 742 states have internal predecessors, (974), 84 states have call successors, (84), 9 states have call predecessors, (84), 9 states have return successors, (84), 81 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-16 18:41:57,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 833 states to 833 states and 1142 transitions. [2024-11-16 18:41:57,048 INFO L78 Accepts]: Start accepts. Automaton has 833 states and 1142 transitions. Word has length 123 [2024-11-16 18:41:57,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:41:57,048 INFO L471 AbstractCegarLoop]: Abstraction has 833 states and 1142 transitions. [2024-11-16 18:41:57,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.6) internal successors, (66), 10 states have internal predecessors, (66), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-16 18:41:57,049 INFO L276 IsEmpty]: Start isEmpty. Operand 833 states and 1142 transitions. [2024-11-16 18:41:57,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-16 18:41:57,050 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:41:57,050 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:41:57,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-16 18:41:57,051 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:41:57,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:41:57,051 INFO L85 PathProgramCache]: Analyzing trace with hash 1173936350, now seen corresponding path program 1 times [2024-11-16 18:41:57,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:41:57,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308516948] [2024-11-16 18:41:57,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:41:57,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:41:57,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:57,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:41:57,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:57,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:41:57,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:57,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:41:57,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:57,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:41:57,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:57,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:41:57,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:57,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:41:57,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:57,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:41:57,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:57,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:41:57,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:57,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 18:41:57,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:57,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:41:57,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:57,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 18:41:57,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:57,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:41:57,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:57,686 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-16 18:41:57,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:41:57,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308516948] [2024-11-16 18:41:57,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308516948] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:41:57,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:41:57,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 18:41:57,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552853717] [2024-11-16 18:41:57,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:41:57,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 18:41:57,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:41:57,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 18:41:57,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 18:41:57,688 INFO L87 Difference]: Start difference. First operand 833 states and 1142 transitions. Second operand has 6 states, 5 states have (on average 13.2) internal successors, (66), 6 states have internal predecessors, (66), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-16 18:41:58,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:41:58,120 INFO L93 Difference]: Finished difference Result 1791 states and 2440 transitions. [2024-11-16 18:41:58,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 18:41:58,120 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.2) internal successors, (66), 6 states have internal predecessors, (66), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 123 [2024-11-16 18:41:58,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:41:58,125 INFO L225 Difference]: With dead ends: 1791 [2024-11-16 18:41:58,125 INFO L226 Difference]: Without dead ends: 961 [2024-11-16 18:41:58,126 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-16 18:41:58,127 INFO L432 NwaCegarLoop]: 174 mSDtfsCounter, 58 mSDsluCounter, 445 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 619 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 18:41:58,127 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 619 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 18:41:58,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 961 states. [2024-11-16 18:41:58,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 961 to 955. [2024-11-16 18:41:58,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 955 states, 849 states have (on average 1.3074204946996466) internal successors, (1110), 855 states have internal predecessors, (1110), 90 states have call successors, (90), 15 states have call predecessors, (90), 15 states have return successors, (90), 84 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-16 18:41:58,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 955 states to 955 states and 1290 transitions. [2024-11-16 18:41:58,195 INFO L78 Accepts]: Start accepts. Automaton has 955 states and 1290 transitions. Word has length 123 [2024-11-16 18:41:58,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:41:58,196 INFO L471 AbstractCegarLoop]: Abstraction has 955 states and 1290 transitions. [2024-11-16 18:41:58,196 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.2) internal successors, (66), 6 states have internal predecessors, (66), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-16 18:41:58,196 INFO L276 IsEmpty]: Start isEmpty. Operand 955 states and 1290 transitions. [2024-11-16 18:41:58,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-16 18:41:58,197 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:41:58,197 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:41:58,197 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-16 18:41:58,198 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:41:58,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:41:58,198 INFO L85 PathProgramCache]: Analyzing trace with hash -1826571126, now seen corresponding path program 1 times [2024-11-16 18:41:58,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:41:58,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361653737] [2024-11-16 18:41:58,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:41:58,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:41:58,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:59,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:41:59,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:59,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:41:59,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:59,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:41:59,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:59,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:41:59,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:59,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:41:59,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:59,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:41:59,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:59,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:41:59,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:59,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:41:59,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:59,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 18:41:59,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:59,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:41:59,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:59,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 18:41:59,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:59,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:41:59,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:41:59,406 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-16 18:41:59,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:41:59,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361653737] [2024-11-16 18:41:59,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361653737] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:41:59,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:41:59,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-16 18:41:59,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954150366] [2024-11-16 18:41:59,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:41:59,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-16 18:41:59,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:41:59,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-16 18:41:59,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-16 18:41:59,408 INFO L87 Difference]: Start difference. First operand 955 states and 1290 transitions. Second operand has 11 states, 10 states have (on average 6.7) internal successors, (67), 11 states have internal predecessors, (67), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-16 18:42:01,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:42:01,531 INFO L93 Difference]: Finished difference Result 1959 states and 2647 transitions. [2024-11-16 18:42:01,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-16 18:42:01,532 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.7) internal successors, (67), 11 states have internal predecessors, (67), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 124 [2024-11-16 18:42:01,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:42:01,538 INFO L225 Difference]: With dead ends: 1959 [2024-11-16 18:42:01,538 INFO L226 Difference]: Without dead ends: 1312 [2024-11-16 18:42:01,539 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2024-11-16 18:42:01,540 INFO L432 NwaCegarLoop]: 198 mSDtfsCounter, 358 mSDsluCounter, 1028 mSDsCounter, 0 mSdLazyCounter, 1765 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 359 SdHoareTripleChecker+Valid, 1226 SdHoareTripleChecker+Invalid, 1851 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 1765 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-16 18:42:01,540 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [359 Valid, 1226 Invalid, 1851 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 1765 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-16 18:42:01,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1312 states. [2024-11-16 18:42:01,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1312 to 1065. [2024-11-16 18:42:01,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1065 states, 945 states have (on average 1.3047619047619048) internal successors, (1233), 952 states have internal predecessors, (1233), 102 states have call successors, (102), 17 states have call predecessors, (102), 17 states have return successors, (102), 95 states have call predecessors, (102), 102 states have call successors, (102) [2024-11-16 18:42:01,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1065 states to 1065 states and 1437 transitions. [2024-11-16 18:42:01,631 INFO L78 Accepts]: Start accepts. Automaton has 1065 states and 1437 transitions. Word has length 124 [2024-11-16 18:42:01,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:42:01,633 INFO L471 AbstractCegarLoop]: Abstraction has 1065 states and 1437 transitions. [2024-11-16 18:42:01,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.7) internal successors, (67), 11 states have internal predecessors, (67), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-16 18:42:01,633 INFO L276 IsEmpty]: Start isEmpty. Operand 1065 states and 1437 transitions. [2024-11-16 18:42:01,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-16 18:42:01,634 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:42:01,634 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:42:01,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-16 18:42:01,634 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:42:01,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:42:01,636 INFO L85 PathProgramCache]: Analyzing trace with hash -2081307671, now seen corresponding path program 1 times [2024-11-16 18:42:01,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:42:01,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910800940] [2024-11-16 18:42:01,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:42:01,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:42:01,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:42:02,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:42:02,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:42:02,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:42:02,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:42:02,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:42:02,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:42:02,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:42:02,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:42:02,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:42:02,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:42:02,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:42:02,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:42:02,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:42:02,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:42:02,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:42:02,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:42:02,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 18:42:02,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:42:02,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:42:02,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:42:02,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 18:42:02,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:42:02,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:42:02,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:42:02,895 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-16 18:42:02,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:42:02,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910800940] [2024-11-16 18:42:02,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910800940] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:42:02,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:42:02,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-16 18:42:02,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616382046] [2024-11-16 18:42:02,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:42:02,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 18:42:02,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:42:02,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 18:42:02,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-16 18:42:02,898 INFO L87 Difference]: Start difference. First operand 1065 states and 1437 transitions. Second operand has 10 states, 10 states have (on average 6.7) internal successors, (67), 10 states have internal predecessors, (67), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-16 18:42:05,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:42:05,404 INFO L93 Difference]: Finished difference Result 2107 states and 2850 transitions. [2024-11-16 18:42:05,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 18:42:05,405 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.7) internal successors, (67), 10 states have internal predecessors, (67), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 124 [2024-11-16 18:42:05,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:42:05,412 INFO L225 Difference]: With dead ends: 2107 [2024-11-16 18:42:05,412 INFO L226 Difference]: Without dead ends: 1350 [2024-11-16 18:42:05,414 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2024-11-16 18:42:05,414 INFO L432 NwaCegarLoop]: 202 mSDtfsCounter, 358 mSDsluCounter, 903 mSDsCounter, 0 mSdLazyCounter, 1541 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 358 SdHoareTripleChecker+Valid, 1105 SdHoareTripleChecker+Invalid, 1625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 1541 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-16 18:42:05,415 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [358 Valid, 1105 Invalid, 1625 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 1541 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-16 18:42:05,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1350 states. [2024-11-16 18:42:05,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1350 to 993. [2024-11-16 18:42:05,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 993 states, 876 states have (on average 1.3082191780821917) internal successors, (1146), 882 states have internal predecessors, (1146), 100 states have call successors, (100), 16 states have call predecessors, (100), 16 states have return successors, (100), 94 states have call predecessors, (100), 100 states have call successors, (100) [2024-11-16 18:42:05,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 993 states to 993 states and 1346 transitions. [2024-11-16 18:42:05,512 INFO L78 Accepts]: Start accepts. Automaton has 993 states and 1346 transitions. Word has length 124 [2024-11-16 18:42:05,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:42:05,513 INFO L471 AbstractCegarLoop]: Abstraction has 993 states and 1346 transitions. [2024-11-16 18:42:05,513 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.7) internal successors, (67), 10 states have internal predecessors, (67), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-16 18:42:05,513 INFO L276 IsEmpty]: Start isEmpty. Operand 993 states and 1346 transitions. [2024-11-16 18:42:05,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-16 18:42:05,515 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:42:05,515 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:42:05,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-16 18:42:05,515 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:42:05,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:42:05,516 INFO L85 PathProgramCache]: Analyzing trace with hash -1708389132, now seen corresponding path program 1 times [2024-11-16 18:42:05,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:42:05,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534462858] [2024-11-16 18:42:05,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:42:05,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:42:05,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:42:05,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:42:05,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:42:05,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:42:05,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:42:05,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:42:05,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:42:05,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:42:05,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:42:05,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:42:05,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:42:05,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:42:05,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:42:05,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:42:05,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:42:05,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:42:05,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:42:05,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 18:42:05,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:42:05,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:42:05,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:42:05,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 18:42:05,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:42:05,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:42:05,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:42:05,678 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-16 18:42:05,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:42:05,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534462858] [2024-11-16 18:42:05,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534462858] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:42:05,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:42:05,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 18:42:05,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286115023] [2024-11-16 18:42:05,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:42:05,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 18:42:05,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:42:05,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 18:42:05,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 18:42:05,680 INFO L87 Difference]: Start difference. First operand 993 states and 1346 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-16 18:42:05,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:42:05,912 INFO L93 Difference]: Finished difference Result 2284 states and 3092 transitions. [2024-11-16 18:42:05,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 18:42:05,913 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 124 [2024-11-16 18:42:05,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:42:05,919 INFO L225 Difference]: With dead ends: 2284 [2024-11-16 18:42:05,919 INFO L226 Difference]: Without dead ends: 1294 [2024-11-16 18:42:05,922 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 18:42:05,923 INFO L432 NwaCegarLoop]: 135 mSDtfsCounter, 85 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 18:42:05,923 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 345 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 18:42:05,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1294 states. [2024-11-16 18:42:06,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1294 to 1075. [2024-11-16 18:42:06,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1075 states, 958 states have (on average 1.2954070981210857) internal successors, (1241), 964 states have internal predecessors, (1241), 100 states have call successors, (100), 16 states have call predecessors, (100), 16 states have return successors, (100), 94 states have call predecessors, (100), 100 states have call successors, (100) [2024-11-16 18:42:06,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1075 states to 1075 states and 1441 transitions. [2024-11-16 18:42:06,034 INFO L78 Accepts]: Start accepts. Automaton has 1075 states and 1441 transitions. Word has length 124 [2024-11-16 18:42:06,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:42:06,035 INFO L471 AbstractCegarLoop]: Abstraction has 1075 states and 1441 transitions. [2024-11-16 18:42:06,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-16 18:42:06,035 INFO L276 IsEmpty]: Start isEmpty. Operand 1075 states and 1441 transitions. [2024-11-16 18:42:06,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-16 18:42:06,036 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:42:06,037 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:42:06,037 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-16 18:42:06,037 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:42:06,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:42:06,037 INFO L85 PathProgramCache]: Analyzing trace with hash -1092623847, now seen corresponding path program 1 times [2024-11-16 18:42:06,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:42:06,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697125059] [2024-11-16 18:42:06,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:42:06,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:42:06,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:42:06,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:42:06,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:42:06,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:42:06,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:42:06,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:42:06,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:42:06,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:42:06,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:42:06,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:42:06,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:42:06,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:42:06,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:42:06,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:42:06,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:42:06,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:42:06,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:42:06,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 18:42:06,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:42:06,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:42:06,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:42:06,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 18:42:06,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:42:06,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:42:06,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:42:06,982 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-16 18:42:06,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:42:06,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697125059] [2024-11-16 18:42:06,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697125059] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:42:06,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:42:06,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-16 18:42:06,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652095143] [2024-11-16 18:42:06,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:42:06,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-16 18:42:06,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:42:06,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-16 18:42:06,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2024-11-16 18:42:06,985 INFO L87 Difference]: Start difference. First operand 1075 states and 1441 transitions. Second operand has 15 states, 15 states have (on average 4.466666666666667) internal successors, (67), 15 states have internal predecessors, (67), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-16 18:42:08,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:42:08,001 INFO L93 Difference]: Finished difference Result 2435 states and 3253 transitions. [2024-11-16 18:42:08,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-16 18:42:08,002 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.466666666666667) internal successors, (67), 15 states have internal predecessors, (67), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 124 [2024-11-16 18:42:08,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:42:08,008 INFO L225 Difference]: With dead ends: 2435 [2024-11-16 18:42:08,008 INFO L226 Difference]: Without dead ends: 1363 [2024-11-16 18:42:08,010 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=493, Unknown=0, NotChecked=0, Total=600 [2024-11-16 18:42:08,011 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 413 mSDsluCounter, 1343 mSDsCounter, 0 mSdLazyCounter, 1498 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 1471 SdHoareTripleChecker+Invalid, 1584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 1498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 18:42:08,012 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [413 Valid, 1471 Invalid, 1584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 1498 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 18:42:08,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1363 states. [2024-11-16 18:42:08,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1363 to 1098. [2024-11-16 18:42:08,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1098 states, 981 states have (on average 1.292558613659531) internal successors, (1268), 987 states have internal predecessors, (1268), 100 states have call successors, (100), 16 states have call predecessors, (100), 16 states have return successors, (100), 94 states have call predecessors, (100), 100 states have call successors, (100) [2024-11-16 18:42:08,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1098 states to 1098 states and 1468 transitions. [2024-11-16 18:42:08,102 INFO L78 Accepts]: Start accepts. Automaton has 1098 states and 1468 transitions. Word has length 124 [2024-11-16 18:42:08,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:42:08,105 INFO L471 AbstractCegarLoop]: Abstraction has 1098 states and 1468 transitions. [2024-11-16 18:42:08,106 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.466666666666667) internal successors, (67), 15 states have internal predecessors, (67), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-16 18:42:08,106 INFO L276 IsEmpty]: Start isEmpty. Operand 1098 states and 1468 transitions. [2024-11-16 18:42:08,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-16 18:42:08,107 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:42:08,107 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:42:08,107 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-16 18:42:08,108 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:42:08,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:42:08,108 INFO L85 PathProgramCache]: Analyzing trace with hash -963541128, now seen corresponding path program 1 times [2024-11-16 18:42:08,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:42:08,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294063192] [2024-11-16 18:42:08,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:42:08,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:42:08,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:42:09,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:42:09,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:42:09,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:42:09,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:42:09,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:42:09,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:42:09,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:42:09,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:42:09,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:42:09,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:42:09,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:42:09,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:42:09,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:42:09,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:42:09,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:42:09,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:42:09,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 18:42:09,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:42:09,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:42:09,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:42:09,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 18:42:09,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:42:09,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:42:09,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:42:09,222 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-16 18:42:09,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:42:09,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294063192] [2024-11-16 18:42:09,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294063192] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:42:09,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:42:09,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-16 18:42:09,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356764168] [2024-11-16 18:42:09,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:42:09,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 18:42:09,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:42:09,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 18:42:09,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-16 18:42:09,224 INFO L87 Difference]: Start difference. First operand 1098 states and 1468 transitions. Second operand has 10 states, 8 states have (on average 8.375) internal successors, (67), 10 states have internal predecessors, (67), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-16 18:42:10,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:42:10,087 INFO L93 Difference]: Finished difference Result 2403 states and 3199 transitions. [2024-11-16 18:42:10,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 18:42:10,088 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 8.375) internal successors, (67), 10 states have internal predecessors, (67), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 4 states have call successors, (12) Word has length 124 [2024-11-16 18:42:10,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:42:10,092 INFO L225 Difference]: With dead ends: 2403 [2024-11-16 18:42:10,093 INFO L226 Difference]: Without dead ends: 1308 [2024-11-16 18:42:10,094 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2024-11-16 18:42:10,095 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 644 mSDsluCounter, 427 mSDsCounter, 0 mSdLazyCounter, 722 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 644 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 722 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 18:42:10,095 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [644 Valid, 507 Invalid, 805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 722 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 18:42:10,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1308 states. [2024-11-16 18:42:10,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1308 to 1098. [2024-11-16 18:42:10,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1098 states, 981 states have (on average 1.291539245667686) internal successors, (1267), 987 states have internal predecessors, (1267), 100 states have call successors, (100), 16 states have call predecessors, (100), 16 states have return successors, (100), 94 states have call predecessors, (100), 100 states have call successors, (100) [2024-11-16 18:42:10,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1098 states to 1098 states and 1467 transitions. [2024-11-16 18:42:10,188 INFO L78 Accepts]: Start accepts. Automaton has 1098 states and 1467 transitions. Word has length 124 [2024-11-16 18:42:10,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:42:10,189 INFO L471 AbstractCegarLoop]: Abstraction has 1098 states and 1467 transitions. [2024-11-16 18:42:10,189 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 8.375) internal successors, (67), 10 states have internal predecessors, (67), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-16 18:42:10,189 INFO L276 IsEmpty]: Start isEmpty. Operand 1098 states and 1467 transitions. [2024-11-16 18:42:10,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-16 18:42:10,190 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:42:10,190 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:42:10,190 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-16 18:42:10,190 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:42:10,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:42:10,191 INFO L85 PathProgramCache]: Analyzing trace with hash 1742106293, now seen corresponding path program 1 times [2024-11-16 18:42:10,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:42:10,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050902150] [2024-11-16 18:42:10,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:42:10,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:42:10,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:42:10,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:42:10,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:42:10,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:42:10,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:42:10,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:42:10,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:42:10,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:42:10,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:42:10,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:42:10,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:42:10,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:42:10,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:42:10,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:42:10,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:42:10,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:42:10,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:42:10,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 18:42:10,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:42:10,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:42:10,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:42:10,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 18:42:10,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:42:10,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:42:10,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:42:10,767 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-16 18:42:10,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:42:10,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050902150] [2024-11-16 18:42:10,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050902150] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:42:10,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:42:10,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 18:42:10,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100420919] [2024-11-16 18:42:10,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:42:10,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 18:42:10,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:42:10,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 18:42:10,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 18:42:10,771 INFO L87 Difference]: Start difference. First operand 1098 states and 1467 transitions. Second operand has 6 states, 5 states have (on average 13.4) internal successors, (67), 6 states have internal predecessors, (67), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-16 18:42:11,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:42:11,109 INFO L93 Difference]: Finished difference Result 2124 states and 2849 transitions. [2024-11-16 18:42:11,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 18:42:11,109 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.4) internal successors, (67), 6 states have internal predecessors, (67), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 124 [2024-11-16 18:42:11,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:42:11,122 INFO L225 Difference]: With dead ends: 2124 [2024-11-16 18:42:11,122 INFO L226 Difference]: Without dead ends: 1029 [2024-11-16 18:42:11,124 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-16 18:42:11,126 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 104 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 391 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 18:42:11,128 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 391 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 18:42:11,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1029 states. [2024-11-16 18:42:11,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1029 to 999. [2024-11-16 18:42:11,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 999 states, 882 states have (on average 1.2891156462585034) internal successors, (1137), 888 states have internal predecessors, (1137), 100 states have call successors, (100), 16 states have call predecessors, (100), 16 states have return successors, (100), 94 states have call predecessors, (100), 100 states have call successors, (100) [2024-11-16 18:42:11,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 999 states to 999 states and 1337 transitions. [2024-11-16 18:42:11,222 INFO L78 Accepts]: Start accepts. Automaton has 999 states and 1337 transitions. Word has length 124 [2024-11-16 18:42:11,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:42:11,222 INFO L471 AbstractCegarLoop]: Abstraction has 999 states and 1337 transitions. [2024-11-16 18:42:11,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.4) internal successors, (67), 6 states have internal predecessors, (67), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-16 18:42:11,222 INFO L276 IsEmpty]: Start isEmpty. Operand 999 states and 1337 transitions. [2024-11-16 18:42:11,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-16 18:42:11,223 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:42:11,224 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:42:11,224 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-16 18:42:11,224 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:42:11,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:42:11,224 INFO L85 PathProgramCache]: Analyzing trace with hash 1192239608, now seen corresponding path program 1 times [2024-11-16 18:42:11,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:42:11,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075411537] [2024-11-16 18:42:11,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:42:11,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:42:11,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:42:12,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:42:12,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:42:12,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:42:12,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:42:12,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:42:12,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:42:12,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:42:12,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:42:12,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:42:12,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:42:12,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:42:12,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:42:12,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:42:12,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:42:12,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:42:12,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:42:12,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 18:42:12,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:42:12,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:42:12,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:42:12,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 18:42:12,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:42:12,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:42:12,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:42:12,558 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-16 18:42:12,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:42:12,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075411537] [2024-11-16 18:42:12,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075411537] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:42:12,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:42:12,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-16 18:42:12,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142140248] [2024-11-16 18:42:12,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:42:12,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 18:42:12,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:42:12,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 18:42:12,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-16 18:42:12,562 INFO L87 Difference]: Start difference. First operand 999 states and 1337 transitions. Second operand has 10 states, 10 states have (on average 6.7) internal successors, (67), 10 states have internal predecessors, (67), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-16 18:42:20,301 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-16 18:42:24,551 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-16 18:42:24,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:42:24,801 INFO L93 Difference]: Finished difference Result 2091 states and 2784 transitions. [2024-11-16 18:42:24,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 18:42:24,801 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.7) internal successors, (67), 10 states have internal predecessors, (67), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 124 [2024-11-16 18:42:24,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:42:24,809 INFO L225 Difference]: With dead ends: 2091 [2024-11-16 18:42:24,809 INFO L226 Difference]: Without dead ends: 1095 [2024-11-16 18:42:24,811 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2024-11-16 18:42:24,812 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 362 mSDsluCounter, 515 mSDsCounter, 0 mSdLazyCounter, 1047 mSolverCounterSat, 65 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 362 SdHoareTripleChecker+Valid, 629 SdHoareTripleChecker+Invalid, 1114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 1047 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time [2024-11-16 18:42:24,812 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [362 Valid, 629 Invalid, 1114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 1047 Invalid, 2 Unknown, 0 Unchecked, 11.6s Time] [2024-11-16 18:42:24,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1095 states. [2024-11-16 18:42:24,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1095 to 1071. [2024-11-16 18:42:24,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1071 states, 933 states have (on average 1.279742765273312) internal successors, (1194), 941 states have internal predecessors, (1194), 116 states have call successors, (116), 21 states have call predecessors, (116), 21 states have return successors, (116), 108 states have call predecessors, (116), 116 states have call successors, (116) [2024-11-16 18:42:24,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1071 states to 1071 states and 1426 transitions. [2024-11-16 18:42:24,928 INFO L78 Accepts]: Start accepts. Automaton has 1071 states and 1426 transitions. Word has length 124 [2024-11-16 18:42:24,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:42:24,929 INFO L471 AbstractCegarLoop]: Abstraction has 1071 states and 1426 transitions. [2024-11-16 18:42:24,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.7) internal successors, (67), 10 states have internal predecessors, (67), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-16 18:42:24,930 INFO L276 IsEmpty]: Start isEmpty. Operand 1071 states and 1426 transitions. [2024-11-16 18:42:24,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-16 18:42:24,931 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:42:24,931 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:42:24,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-16 18:42:24,931 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:42:24,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:42:24,932 INFO L85 PathProgramCache]: Analyzing trace with hash 1321322327, now seen corresponding path program 1 times [2024-11-16 18:42:24,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:42:24,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850821603] [2024-11-16 18:42:24,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:42:24,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:42:24,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:42:26,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:42:26,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:42:26,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:42:26,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:42:26,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:42:26,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:42:26,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:42:26,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:42:26,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:42:26,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:42:26,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:42:26,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:42:26,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:42:26,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:42:26,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:42:26,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:42:26,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 18:42:26,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:42:26,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:42:26,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:42:26,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 18:42:26,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:42:26,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:42:26,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:42:26,415 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-16 18:42:26,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:42:26,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850821603] [2024-11-16 18:42:26,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850821603] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:42:26,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:42:26,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-16 18:42:26,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999634093] [2024-11-16 18:42:26,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:42:26,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-16 18:42:26,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:42:26,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-16 18:42:26,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2024-11-16 18:42:26,418 INFO L87 Difference]: Start difference. First operand 1071 states and 1426 transitions. Second operand has 17 states, 17 states have (on average 3.9411764705882355) internal successors, (67), 17 states have internal predecessors, (67), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12)