./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-27.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-27.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 ab65447cc97ed4f251e6c4b0afc78d9d0c0d28068c3e23c2f6f7c53903035da5 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 12:53:44,814 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 12:53:44,861 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 12:53:44,865 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 12:53:44,865 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 12:53:44,888 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 12:53:44,889 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 12:53:44,889 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 12:53:44,890 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 12:53:44,890 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 12:53:44,891 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 12:53:44,891 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 12:53:44,891 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 12:53:44,893 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 12:53:44,893 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 12:53:44,893 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 12:53:44,893 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 12:53:44,893 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 12:53:44,894 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 12:53:44,894 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 12:53:44,894 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 12:53:44,896 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 12:53:44,897 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 12:53:44,897 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 12:53:44,897 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 12:53:44,897 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 12:53:44,897 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 12:53:44,898 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 12:53:44,898 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 12:53:44,898 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 12:53:44,898 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 12:53:44,898 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 12:53:44,898 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 12:53:44,899 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 12:53:44,899 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 12:53:44,899 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 12:53:44,899 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 12:53:44,899 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 12:53:44,899 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 12:53:44,900 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 12:53:44,900 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 12:53:44,900 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 12:53:44,900 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ab65447cc97ed4f251e6c4b0afc78d9d0c0d28068c3e23c2f6f7c53903035da5 [2024-11-22 12:53:45,136 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 12:53:45,161 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 12:53:45,163 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 12:53:45,164 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 12:53:45,165 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 12:53:45,166 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-27.i [2024-11-22 12:53:46,349 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 12:53:46,589 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 12:53:46,589 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-27.i [2024-11-22 12:53:46,598 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e99e68a60/126f5649333b48f883abd1e8e7eea950/FLAG4f7fa7c10 [2024-11-22 12:53:46,940 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e99e68a60/126f5649333b48f883abd1e8e7eea950 [2024-11-22 12:53:46,942 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 12:53:46,943 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 12:53:46,948 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 12:53:46,948 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 12:53:46,952 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 12:53:46,953 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:53:46" (1/1) ... [2024-11-22 12:53:46,954 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@621943bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:53:46, skipping insertion in model container [2024-11-22 12:53:46,954 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:53:46" (1/1) ... [2024-11-22 12:53:46,982 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 12:53:47,119 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-27.i[916,929] [2024-11-22 12:53:47,155 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 12:53:47,163 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 12:53:47,171 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-27.i[916,929] [2024-11-22 12:53:47,189 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 12:53:47,205 INFO L204 MainTranslator]: Completed translation [2024-11-22 12:53:47,205 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:53:47 WrapperNode [2024-11-22 12:53:47,205 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 12:53:47,206 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 12:53:47,206 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 12:53:47,206 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 12:53:47,211 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:53:47" (1/1) ... [2024-11-22 12:53:47,218 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:53:47" (1/1) ... [2024-11-22 12:53:47,240 INFO L138 Inliner]: procedures = 26, calls = 163, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 461 [2024-11-22 12:53:47,241 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 12:53:47,242 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 12:53:47,242 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 12:53:47,242 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 12:53:47,252 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:53:47" (1/1) ... [2024-11-22 12:53:47,252 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:53:47" (1/1) ... [2024-11-22 12:53:47,260 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:53:47" (1/1) ... [2024-11-22 12:53:47,279 INFO L175 MemorySlicer]: Split 123 memory accesses to 13 slices as follows [2, 9, 6, 18, 18, 12, 7, 10, 6, 10, 7, 7, 11]. 15 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]. The 16 writes are split as follows [0, 2, 1, 1, 1, 1, 1, 1, 1, 1, 2, 3, 1]. [2024-11-22 12:53:47,279 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:53:47" (1/1) ... [2024-11-22 12:53:47,279 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:53:47" (1/1) ... [2024-11-22 12:53:47,291 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:53:47" (1/1) ... [2024-11-22 12:53:47,296 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:53:47" (1/1) ... [2024-11-22 12:53:47,302 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:53:47" (1/1) ... [2024-11-22 12:53:47,304 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:53:47" (1/1) ... [2024-11-22 12:53:47,311 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 12:53:47,312 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 12:53:47,316 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 12:53:47,316 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 12:53:47,317 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:53:47" (1/1) ... [2024-11-22 12:53:47,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 12:53:47,343 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 12:53:47,360 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-22 12:53:47,362 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-22 12:53:47,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 12:53:47,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-22 12:53:47,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-22 12:53:47,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-22 12:53:47,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-22 12:53:47,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-22 12:53:47,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-22 12:53:47,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-22 12:53:47,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-22 12:53:47,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-22 12:53:47,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-22 12:53:47,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-22 12:53:47,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-11-22 12:53:47,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-11-22 12:53:47,405 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-22 12:53:47,405 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-22 12:53:47,405 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-22 12:53:47,405 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-22 12:53:47,405 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-22 12:53:47,405 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-22 12:53:47,405 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-22 12:53:47,406 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-22 12:53:47,406 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-22 12:53:47,406 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-22 12:53:47,406 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-22 12:53:47,406 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-11-22 12:53:47,406 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-11-22 12:53:47,406 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-22 12:53:47,407 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-22 12:53:47,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 12:53:47,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-22 12:53:47,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-22 12:53:47,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-22 12:53:47,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-22 12:53:47,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-22 12:53:47,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-22 12:53:47,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-22 12:53:47,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-22 12:53:47,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-22 12:53:47,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-22 12:53:47,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-22 12:53:47,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-22 12:53:47,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 12:53:47,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 12:53:47,542 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 12:53:47,544 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 12:53:47,899 INFO L? ?]: Removed 110 outVars from TransFormulas that were not future-live. [2024-11-22 12:53:47,899 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 12:53:47,912 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 12:53:47,913 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 12:53:47,913 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:53:47 BoogieIcfgContainer [2024-11-22 12:53:47,913 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 12:53:47,915 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 12:53:47,916 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 12:53:47,918 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 12:53:47,918 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:53:46" (1/3) ... [2024-11-22 12:53:47,919 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dc9ab17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:53:47, skipping insertion in model container [2024-11-22 12:53:47,919 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:53:47" (2/3) ... [2024-11-22 12:53:47,919 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dc9ab17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:53:47, skipping insertion in model container [2024-11-22 12:53:47,920 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:53:47" (3/3) ... [2024-11-22 12:53:47,921 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-27.i [2024-11-22 12:53:47,932 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 12:53:47,933 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 12:53:47,978 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 12:53:47,983 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;@43faf710, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 12:53:47,984 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 12:53:47,987 INFO L276 IsEmpty]: Start isEmpty. Operand has 94 states, 74 states have (on average 1.3783783783783783) internal successors, (102), 75 states have internal predecessors, (102), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-22 12:53:47,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-22 12:53:47,998 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:53:47,999 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:53:47,999 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:53:48,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:53:48,003 INFO L85 PathProgramCache]: Analyzing trace with hash -599042020, now seen corresponding path program 1 times [2024-11-22 12:53:48,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:53:48,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885819732] [2024-11-22 12:53:48,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:53:48,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:53:48,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:53:48,286 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2024-11-22 12:53:48,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:53:48,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885819732] [2024-11-22 12:53:48,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885819732] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 12:53:48,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1181895445] [2024-11-22 12:53:48,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:53:48,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 12:53:48,288 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 12:53:48,290 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 12:53:48,293 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 12:53:48,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:53:48,485 INFO L255 TraceCheckSpWp]: Trace formula consists of 507 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-22 12:53:48,492 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 12:53:48,518 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2024-11-22 12:53:48,518 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 12:53:48,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1181895445] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:53:48,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 12:53:48,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-22 12:53:48,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533283656] [2024-11-22 12:53:48,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:53:48,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 12:53:48,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:53:48,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 12:53:48,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 12:53:48,547 INFO L87 Difference]: Start difference. First operand has 94 states, 74 states have (on average 1.3783783783783783) internal successors, (102), 75 states have internal predecessors, (102), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-22 12:53:48,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:53:48,566 INFO L93 Difference]: Finished difference Result 181 states and 283 transitions. [2024-11-22 12:53:48,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 12:53:48,568 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 131 [2024-11-22 12:53:48,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:53:48,573 INFO L225 Difference]: With dead ends: 181 [2024-11-22 12:53:48,573 INFO L226 Difference]: Without dead ends: 90 [2024-11-22 12:53:48,575 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 12:53:48,578 INFO L432 NwaCegarLoop]: 129 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, 129 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 12:53:48,578 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 12:53:48,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-11-22 12:53:48,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2024-11-22 12:53:48,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 71 states have (on average 1.3380281690140845) internal successors, (95), 71 states have internal predecessors, (95), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-22 12:53:48,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 129 transitions. [2024-11-22 12:53:48,613 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 129 transitions. Word has length 131 [2024-11-22 12:53:48,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:53:48,613 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 129 transitions. [2024-11-22 12:53:48,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-22 12:53:48,614 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 129 transitions. [2024-11-22 12:53:48,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-22 12:53:48,617 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:53:48,618 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:53:48,625 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-22 12:53:48,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-22 12:53:48,819 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:53:48,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:53:48,819 INFO L85 PathProgramCache]: Analyzing trace with hash -1244012870, now seen corresponding path program 1 times [2024-11-22 12:53:48,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:53:48,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241056571] [2024-11-22 12:53:48,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:53:48,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:53:48,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:53:49,417 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-22 12:53:49,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:53:49,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241056571] [2024-11-22 12:53:49,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241056571] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:53:49,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:53:49,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 12:53:49,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357028926] [2024-11-22 12:53:49,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:53:49,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 12:53:49,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:53:49,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 12:53:49,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 12:53:49,422 INFO L87 Difference]: Start difference. First operand 90 states and 129 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 12:53:49,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:53:49,561 INFO L93 Difference]: Finished difference Result 224 states and 320 transitions. [2024-11-22 12:53:49,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 12:53:49,562 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 131 [2024-11-22 12:53:49,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:53:49,564 INFO L225 Difference]: With dead ends: 224 [2024-11-22 12:53:49,566 INFO L226 Difference]: Without dead ends: 137 [2024-11-22 12:53:49,566 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-22 12:53:49,569 INFO L432 NwaCegarLoop]: 125 mSDtfsCounter, 58 mSDsluCounter, 386 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 12:53:49,569 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 511 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 12:53:49,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2024-11-22 12:53:49,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 134. [2024-11-22 12:53:49,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 112 states have (on average 1.3660714285714286) internal successors, (153), 113 states have internal predecessors, (153), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-22 12:53:49,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 191 transitions. [2024-11-22 12:53:49,586 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 191 transitions. Word has length 131 [2024-11-22 12:53:49,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:53:49,586 INFO L471 AbstractCegarLoop]: Abstraction has 134 states and 191 transitions. [2024-11-22 12:53:49,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 12:53:49,587 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 191 transitions. [2024-11-22 12:53:49,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-22 12:53:49,589 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:53:49,589 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:53:49,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 12:53:49,589 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:53:49,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:53:49,590 INFO L85 PathProgramCache]: Analyzing trace with hash -828522667, now seen corresponding path program 1 times [2024-11-22 12:53:49,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:53:49,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713832760] [2024-11-22 12:53:49,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:53:49,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:53:49,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:53:49,735 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-22 12:53:49,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:53:49,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713832760] [2024-11-22 12:53:49,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713832760] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:53:49,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:53:49,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 12:53:49,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138359198] [2024-11-22 12:53:49,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:53:49,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 12:53:49,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:53:49,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 12:53:49,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 12:53:49,737 INFO L87 Difference]: Start difference. First operand 134 states and 191 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 12:53:49,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:53:49,852 INFO L93 Difference]: Finished difference Result 308 states and 439 transitions. [2024-11-22 12:53:49,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 12:53:49,853 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 133 [2024-11-22 12:53:49,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:53:49,855 INFO L225 Difference]: With dead ends: 308 [2024-11-22 12:53:49,855 INFO L226 Difference]: Without dead ends: 177 [2024-11-22 12:53:49,856 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-22 12:53:49,857 INFO L432 NwaCegarLoop]: 219 mSDtfsCounter, 110 mSDsluCounter, 511 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 730 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 12:53:49,857 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 730 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 12:53:49,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2024-11-22 12:53:49,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 173. [2024-11-22 12:53:49,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 135 states have (on average 1.3111111111111111) internal successors, (177), 135 states have internal predecessors, (177), 34 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-22 12:53:49,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 245 transitions. [2024-11-22 12:53:49,880 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 245 transitions. Word has length 133 [2024-11-22 12:53:49,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:53:49,881 INFO L471 AbstractCegarLoop]: Abstraction has 173 states and 245 transitions. [2024-11-22 12:53:49,881 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 12:53:49,881 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 245 transitions. [2024-11-22 12:53:49,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-22 12:53:49,885 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:53:49,885 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:53:49,885 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 12:53:49,885 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:53:49,886 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:53:49,886 INFO L85 PathProgramCache]: Analyzing trace with hash -1503590059, now seen corresponding path program 1 times [2024-11-22 12:53:49,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:53:49,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615403629] [2024-11-22 12:53:49,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:53:49,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:53:49,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:53:50,011 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-22 12:53:50,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:53:50,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615403629] [2024-11-22 12:53:50,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615403629] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:53:50,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:53:50,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 12:53:50,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312212366] [2024-11-22 12:53:50,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:53:50,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 12:53:50,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:53:50,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 12:53:50,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 12:53:50,017 INFO L87 Difference]: Start difference. First operand 173 states and 245 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 12:53:50,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:53:50,130 INFO L93 Difference]: Finished difference Result 349 states and 494 transitions. [2024-11-22 12:53:50,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 12:53:50,131 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 133 [2024-11-22 12:53:50,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:53:50,134 INFO L225 Difference]: With dead ends: 349 [2024-11-22 12:53:50,135 INFO L226 Difference]: Without dead ends: 179 [2024-11-22 12:53:50,136 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-22 12:53:50,136 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 117 mSDsluCounter, 396 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 562 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 12:53:50,138 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 562 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 12:53:50,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2024-11-22 12:53:50,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 175. [2024-11-22 12:53:50,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 137 states have (on average 1.2992700729927007) internal successors, (178), 137 states have internal predecessors, (178), 34 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-22 12:53:50,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 246 transitions. [2024-11-22 12:53:50,152 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 246 transitions. Word has length 133 [2024-11-22 12:53:50,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:53:50,153 INFO L471 AbstractCegarLoop]: Abstraction has 175 states and 246 transitions. [2024-11-22 12:53:50,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 12:53:50,153 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 246 transitions. [2024-11-22 12:53:50,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-22 12:53:50,154 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:53:50,154 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:53:50,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 12:53:50,155 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:53:50,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:53:50,155 INFO L85 PathProgramCache]: Analyzing trace with hash -252020168, now seen corresponding path program 1 times [2024-11-22 12:53:50,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:53:50,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065559859] [2024-11-22 12:53:50,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:53:50,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:53:50,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:53:50,428 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-22 12:53:50,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:53:50,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065559859] [2024-11-22 12:53:50,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065559859] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:53:50,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:53:50,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 12:53:50,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656082577] [2024-11-22 12:53:50,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:53:50,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 12:53:50,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:53:50,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 12:53:50,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 12:53:50,433 INFO L87 Difference]: Start difference. First operand 175 states and 246 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 12:53:50,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:53:50,495 INFO L93 Difference]: Finished difference Result 479 states and 672 transitions. [2024-11-22 12:53:50,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 12:53:50,496 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 134 [2024-11-22 12:53:50,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:53:50,499 INFO L225 Difference]: With dead ends: 479 [2024-11-22 12:53:50,500 INFO L226 Difference]: Without dead ends: 307 [2024-11-22 12:53:50,500 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-22 12:53:50,501 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 95 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 12:53:50,501 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 557 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 12:53:50,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2024-11-22 12:53:50,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 303. [2024-11-22 12:53:50,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 246 states have (on average 1.3170731707317074) internal successors, (324), 248 states have internal predecessors, (324), 50 states have call successors, (50), 6 states have call predecessors, (50), 6 states have return successors, (50), 48 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-22 12:53:50,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 424 transitions. [2024-11-22 12:53:50,535 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 424 transitions. Word has length 134 [2024-11-22 12:53:50,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:53:50,536 INFO L471 AbstractCegarLoop]: Abstraction has 303 states and 424 transitions. [2024-11-22 12:53:50,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 12:53:50,536 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 424 transitions. [2024-11-22 12:53:50,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-22 12:53:50,538 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:53:50,538 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:53:50,538 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 12:53:50,538 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:53:50,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:53:50,539 INFO L85 PathProgramCache]: Analyzing trace with hash -314059782, now seen corresponding path program 1 times [2024-11-22 12:53:50,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:53:50,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878067668] [2024-11-22 12:53:50,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:53:50,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:53:50,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:53:50,760 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-22 12:53:50,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:53:50,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878067668] [2024-11-22 12:53:50,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878067668] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:53:50,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:53:50,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 12:53:50,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868873444] [2024-11-22 12:53:50,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:53:50,762 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 12:53:50,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:53:50,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 12:53:50,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 12:53:50,763 INFO L87 Difference]: Start difference. First operand 303 states and 424 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 12:53:50,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:53:50,851 INFO L93 Difference]: Finished difference Result 741 states and 1028 transitions. [2024-11-22 12:53:50,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 12:53:50,851 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 134 [2024-11-22 12:53:50,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:53:50,854 INFO L225 Difference]: With dead ends: 741 [2024-11-22 12:53:50,855 INFO L226 Difference]: Without dead ends: 441 [2024-11-22 12:53:50,856 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-22 12:53:50,858 INFO L432 NwaCegarLoop]: 206 mSDtfsCounter, 156 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 522 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 12:53:50,858 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 522 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 12:53:50,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2024-11-22 12:53:50,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 215. [2024-11-22 12:53:50,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 175 states have (on average 1.2971428571428572) internal successors, (227), 175 states have internal predecessors, (227), 34 states have call successors, (34), 5 states have call predecessors, (34), 5 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-22 12:53:50,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 295 transitions. [2024-11-22 12:53:50,873 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 295 transitions. Word has length 134 [2024-11-22 12:53:50,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:53:50,873 INFO L471 AbstractCegarLoop]: Abstraction has 215 states and 295 transitions. [2024-11-22 12:53:50,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 12:53:50,873 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 295 transitions. [2024-11-22 12:53:50,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-22 12:53:50,874 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:53:50,874 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:53:50,875 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 12:53:50,875 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:53:50,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:53:50,875 INFO L85 PathProgramCache]: Analyzing trace with hash 1315430834, now seen corresponding path program 1 times [2024-11-22 12:53:50,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:53:50,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079920763] [2024-11-22 12:53:50,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:53:50,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:53:50,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:53:51,289 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-22 12:53:51,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:53:51,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079920763] [2024-11-22 12:53:51,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079920763] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:53:51,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:53:51,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-22 12:53:51,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398743550] [2024-11-22 12:53:51,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:53:51,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 12:53:51,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:53:51,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 12:53:51,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-22 12:53:51,291 INFO L87 Difference]: Start difference. First operand 215 states and 295 transitions. Second operand has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 9 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 12:53:51,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:53:51,498 INFO L93 Difference]: Finished difference Result 473 states and 650 transitions. [2024-11-22 12:53:51,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 12:53:51,499 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 9 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 135 [2024-11-22 12:53:51,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:53:51,500 INFO L225 Difference]: With dead ends: 473 [2024-11-22 12:53:51,500 INFO L226 Difference]: Without dead ends: 261 [2024-11-22 12:53:51,501 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-11-22 12:53:51,501 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 51 mSDsluCounter, 803 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 932 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 12:53:51,502 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 932 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 12:53:51,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2024-11-22 12:53:51,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 232. [2024-11-22 12:53:51,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 192 states have (on average 1.296875) internal successors, (249), 192 states have internal predecessors, (249), 34 states have call successors, (34), 5 states have call predecessors, (34), 5 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-22 12:53:51,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 317 transitions. [2024-11-22 12:53:51,511 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 317 transitions. Word has length 135 [2024-11-22 12:53:51,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:53:51,511 INFO L471 AbstractCegarLoop]: Abstraction has 232 states and 317 transitions. [2024-11-22 12:53:51,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 9 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 12:53:51,512 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 317 transitions. [2024-11-22 12:53:51,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-22 12:53:51,513 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:53:51,513 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:53:51,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 12:53:51,513 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:53:51,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:53:51,513 INFO L85 PathProgramCache]: Analyzing trace with hash 1573596272, now seen corresponding path program 1 times [2024-11-22 12:53:51,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:53:51,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504204505] [2024-11-22 12:53:51,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:53:51,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:53:51,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:53:51,726 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-22 12:53:51,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:53:51,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504204505] [2024-11-22 12:53:51,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504204505] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:53:51,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:53:51,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 12:53:51,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87336293] [2024-11-22 12:53:51,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:53:51,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 12:53:51,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:53:51,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 12:53:51,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 12:53:51,728 INFO L87 Difference]: Start difference. First operand 232 states and 317 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 12:53:51,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:53:51,857 INFO L93 Difference]: Finished difference Result 495 states and 676 transitions. [2024-11-22 12:53:51,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 12:53:51,858 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 135 [2024-11-22 12:53:51,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:53:51,859 INFO L225 Difference]: With dead ends: 495 [2024-11-22 12:53:51,859 INFO L226 Difference]: Without dead ends: 266 [2024-11-22 12:53:51,860 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-22 12:53:51,860 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 53 mSDsluCounter, 551 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 720 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 12:53:51,860 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 720 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 12:53:51,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2024-11-22 12:53:51,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 263. [2024-11-22 12:53:51,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 220 states have (on average 1.3045454545454545) internal successors, (287), 221 states have internal predecessors, (287), 36 states have call successors, (36), 6 states have call predecessors, (36), 6 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-22 12:53:51,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 359 transitions. [2024-11-22 12:53:51,875 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 359 transitions. Word has length 135 [2024-11-22 12:53:51,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:53:51,875 INFO L471 AbstractCegarLoop]: Abstraction has 263 states and 359 transitions. [2024-11-22 12:53:51,876 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 12:53:51,876 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 359 transitions. [2024-11-22 12:53:51,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-22 12:53:51,877 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:53:51,877 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:53:51,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 12:53:51,877 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:53:51,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:53:51,877 INFO L85 PathProgramCache]: Analyzing trace with hash 497782384, now seen corresponding path program 1 times [2024-11-22 12:53:51,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:53:51,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264059676] [2024-11-22 12:53:51,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:53:51,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:53:51,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:53:52,158 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-22 12:53:52,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:53:52,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264059676] [2024-11-22 12:53:52,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264059676] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:53:52,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:53:52,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 12:53:52,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152449573] [2024-11-22 12:53:52,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:53:52,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 12:53:52,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:53:52,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 12:53:52,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 12:53:52,160 INFO L87 Difference]: Start difference. First operand 263 states and 359 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 12:53:52,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:53:52,275 INFO L93 Difference]: Finished difference Result 530 states and 720 transitions. [2024-11-22 12:53:52,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 12:53:52,276 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 135 [2024-11-22 12:53:52,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:53:52,278 INFO L225 Difference]: With dead ends: 530 [2024-11-22 12:53:52,278 INFO L226 Difference]: Without dead ends: 270 [2024-11-22 12:53:52,279 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-22 12:53:52,279 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 56 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 564 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 12:53:52,279 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 564 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 12:53:52,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2024-11-22 12:53:52,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 236. [2024-11-22 12:53:52,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 195 states have (on average 1.2820512820512822) internal successors, (250), 195 states have internal predecessors, (250), 34 states have call successors, (34), 6 states have call predecessors, (34), 6 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-22 12:53:52,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 318 transitions. [2024-11-22 12:53:52,293 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 318 transitions. Word has length 135 [2024-11-22 12:53:52,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:53:52,294 INFO L471 AbstractCegarLoop]: Abstraction has 236 states and 318 transitions. [2024-11-22 12:53:52,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 12:53:52,295 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 318 transitions. [2024-11-22 12:53:52,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-22 12:53:52,296 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:53:52,296 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:53:52,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 12:53:52,296 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:53:52,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:53:52,297 INFO L85 PathProgramCache]: Analyzing trace with hash 755947822, now seen corresponding path program 1 times [2024-11-22 12:53:52,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:53:52,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606254240] [2024-11-22 12:53:52,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:53:52,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:53:52,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:53:52,719 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-22 12:53:52,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:53:52,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606254240] [2024-11-22 12:53:52,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606254240] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:53:52,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:53:52,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-22 12:53:52,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520433204] [2024-11-22 12:53:52,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:53:52,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 12:53:52,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:53:52,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 12:53:52,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-22 12:53:52,721 INFO L87 Difference]: Start difference. First operand 236 states and 318 transitions. Second operand has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 12:53:52,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:53:52,888 INFO L93 Difference]: Finished difference Result 495 states and 669 transitions. [2024-11-22 12:53:52,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 12:53:52,889 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 135 [2024-11-22 12:53:52,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:53:52,890 INFO L225 Difference]: With dead ends: 495 [2024-11-22 12:53:52,890 INFO L226 Difference]: Without dead ends: 262 [2024-11-22 12:53:52,891 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2024-11-22 12:53:52,891 INFO L432 NwaCegarLoop]: 162 mSDtfsCounter, 46 mSDsluCounter, 1154 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 1316 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 12:53:52,891 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 1316 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 12:53:52,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2024-11-22 12:53:52,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 233. [2024-11-22 12:53:52,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 192 states have (on average 1.28125) internal successors, (246), 192 states have internal predecessors, (246), 34 states have call successors, (34), 6 states have call predecessors, (34), 6 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-22 12:53:52,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 314 transitions. [2024-11-22 12:53:52,902 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 314 transitions. Word has length 135 [2024-11-22 12:53:52,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:53:52,902 INFO L471 AbstractCegarLoop]: Abstraction has 233 states and 314 transitions. [2024-11-22 12:53:52,902 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 12:53:52,902 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 314 transitions. [2024-11-22 12:53:52,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-22 12:53:52,903 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:53:52,903 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:53:52,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 12:53:52,903 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:53:52,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:53:52,904 INFO L85 PathProgramCache]: Analyzing trace with hash -697675202, now seen corresponding path program 1 times [2024-11-22 12:53:52,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:53:52,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361250658] [2024-11-22 12:53:52,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:53:52,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:53:52,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:53:53,101 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-22 12:53:53,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:53:53,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361250658] [2024-11-22 12:53:53,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361250658] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:53:53,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:53:53,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 12:53:53,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328926351] [2024-11-22 12:53:53,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:53:53,102 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 12:53:53,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:53:53,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 12:53:53,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 12:53:53,103 INFO L87 Difference]: Start difference. First operand 233 states and 314 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 12:53:53,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:53:53,153 INFO L93 Difference]: Finished difference Result 600 states and 804 transitions. [2024-11-22 12:53:53,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 12:53:53,154 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 135 [2024-11-22 12:53:53,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:53:53,157 INFO L225 Difference]: With dead ends: 600 [2024-11-22 12:53:53,157 INFO L226 Difference]: Without dead ends: 370 [2024-11-22 12:53:53,157 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-22 12:53:53,158 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 81 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 12:53:53,159 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 471 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 12:53:53,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2024-11-22 12:53:53,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 274. [2024-11-22 12:53:53,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 233 states have (on average 1.2703862660944205) internal successors, (296), 233 states have internal predecessors, (296), 34 states have call successors, (34), 6 states have call predecessors, (34), 6 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-22 12:53:53,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 364 transitions. [2024-11-22 12:53:53,173 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 364 transitions. Word has length 135 [2024-11-22 12:53:53,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:53:53,173 INFO L471 AbstractCegarLoop]: Abstraction has 274 states and 364 transitions. [2024-11-22 12:53:53,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 12:53:53,173 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 364 transitions. [2024-11-22 12:53:53,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-22 12:53:53,174 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:53:53,174 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:53:53,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 12:53:53,174 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:53:53,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:53:53,174 INFO L85 PathProgramCache]: Analyzing trace with hash 3389376, now seen corresponding path program 1 times [2024-11-22 12:53:53,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:53:53,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113327320] [2024-11-22 12:53:53,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:53:53,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:53:53,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:53:53,658 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-22 12:53:53,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:53:53,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113327320] [2024-11-22 12:53:53,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113327320] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:53:53,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:53:53,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 12:53:53,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758557967] [2024-11-22 12:53:53,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:53:53,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 12:53:53,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:53:53,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 12:53:53,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-22 12:53:53,660 INFO L87 Difference]: Start difference. First operand 274 states and 364 transitions. Second operand has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 12:53:53,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:53:53,941 INFO L93 Difference]: Finished difference Result 794 states and 1052 transitions. [2024-11-22 12:53:53,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-22 12:53:53,942 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 135 [2024-11-22 12:53:53,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:53:53,944 INFO L225 Difference]: With dead ends: 794 [2024-11-22 12:53:53,944 INFO L226 Difference]: Without dead ends: 523 [2024-11-22 12:53:53,945 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2024-11-22 12:53:53,945 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 123 mSDsluCounter, 685 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 825 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 12:53:53,945 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 825 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 12:53:53,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2024-11-22 12:53:53,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 329. [2024-11-22 12:53:53,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 288 states have (on average 1.2743055555555556) internal successors, (367), 288 states have internal predecessors, (367), 34 states have call successors, (34), 6 states have call predecessors, (34), 6 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-22 12:53:53,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 435 transitions. [2024-11-22 12:53:53,964 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 435 transitions. Word has length 135 [2024-11-22 12:53:53,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:53:53,964 INFO L471 AbstractCegarLoop]: Abstraction has 329 states and 435 transitions. [2024-11-22 12:53:53,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 12:53:53,964 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 435 transitions. [2024-11-22 12:53:53,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-22 12:53:53,965 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:53:53,965 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:53:53,965 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 12:53:53,966 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:53:53,966 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:53:53,966 INFO L85 PathProgramCache]: Analyzing trace with hash 65428990, now seen corresponding path program 1 times [2024-11-22 12:53:53,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:53:53,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015677949] [2024-11-22 12:53:53,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:53:53,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:53:53,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:53:54,150 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-22 12:53:54,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:53:54,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015677949] [2024-11-22 12:53:54,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015677949] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:53:54,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:53:54,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 12:53:54,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716772703] [2024-11-22 12:53:54,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:53:54,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 12:53:54,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:53:54,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 12:53:54,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 12:53:54,152 INFO L87 Difference]: Start difference. First operand 329 states and 435 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 12:53:54,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:53:54,232 INFO L93 Difference]: Finished difference Result 759 states and 998 transitions. [2024-11-22 12:53:54,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 12:53:54,233 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 135 [2024-11-22 12:53:54,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:53:54,235 INFO L225 Difference]: With dead ends: 759 [2024-11-22 12:53:54,235 INFO L226 Difference]: Without dead ends: 433 [2024-11-22 12:53:54,235 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-22 12:53:54,236 INFO L432 NwaCegarLoop]: 217 mSDtfsCounter, 140 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 540 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 12:53:54,236 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 540 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 12:53:54,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2024-11-22 12:53:54,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 429. [2024-11-22 12:53:54,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 362 states have (on average 1.2513812154696133) internal successors, (453), 364 states have internal predecessors, (453), 54 states have call successors, (54), 12 states have call predecessors, (54), 12 states have return successors, (54), 52 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-22 12:53:54,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 561 transitions. [2024-11-22 12:53:54,261 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 561 transitions. Word has length 135 [2024-11-22 12:53:54,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:53:54,261 INFO L471 AbstractCegarLoop]: Abstraction has 429 states and 561 transitions. [2024-11-22 12:53:54,262 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 12:53:54,262 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 561 transitions. [2024-11-22 12:53:54,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-22 12:53:54,263 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:53:54,263 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:53:54,263 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 12:53:54,263 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:53:54,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:53:54,263 INFO L85 PathProgramCache]: Analyzing trace with hash -568417833, now seen corresponding path program 1 times [2024-11-22 12:53:54,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:53:54,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908922935] [2024-11-22 12:53:54,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:53:54,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:53:54,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:53:54,349 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-22 12:53:54,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:53:54,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908922935] [2024-11-22 12:53:54,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908922935] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:53:54,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:53:54,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 12:53:54,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656799988] [2024-11-22 12:53:54,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:53:54,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 12:53:54,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:53:54,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 12:53:54,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 12:53:54,351 INFO L87 Difference]: Start difference. First operand 429 states and 561 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 12:53:54,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:53:54,453 INFO L93 Difference]: Finished difference Result 1139 states and 1481 transitions. [2024-11-22 12:53:54,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 12:53:54,453 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 139 [2024-11-22 12:53:54,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:53:54,456 INFO L225 Difference]: With dead ends: 1139 [2024-11-22 12:53:54,456 INFO L226 Difference]: Without dead ends: 713 [2024-11-22 12:53:54,456 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 12:53:54,457 INFO L432 NwaCegarLoop]: 130 mSDtfsCounter, 57 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 12:53:54,457 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 472 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 12:53:54,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2024-11-22 12:53:54,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 707. [2024-11-22 12:53:54,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 707 states, 616 states have (on average 1.2564935064935066) internal successors, (774), 622 states have internal predecessors, (774), 70 states have call successors, (70), 20 states have call predecessors, (70), 20 states have return successors, (70), 64 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-22 12:53:54,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 707 states to 707 states and 914 transitions. [2024-11-22 12:53:54,498 INFO L78 Accepts]: Start accepts. Automaton has 707 states and 914 transitions. Word has length 139 [2024-11-22 12:53:54,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:53:54,498 INFO L471 AbstractCegarLoop]: Abstraction has 707 states and 914 transitions. [2024-11-22 12:53:54,499 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 12:53:54,499 INFO L276 IsEmpty]: Start isEmpty. Operand 707 states and 914 transitions. [2024-11-22 12:53:54,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-22 12:53:54,500 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:53:54,500 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:53:54,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-22 12:53:54,500 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:53:54,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:53:54,501 INFO L85 PathProgramCache]: Analyzing trace with hash 111640537, now seen corresponding path program 1 times [2024-11-22 12:53:54,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:53:54,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121673394] [2024-11-22 12:53:54,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:53:54,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:53:54,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:53:54,947 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-22 12:53:54,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:53:54,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121673394] [2024-11-22 12:53:54,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121673394] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:53:54,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:53:54,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-22 12:53:54,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172799848] [2024-11-22 12:53:54,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:53:54,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 12:53:54,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:53:54,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 12:53:54,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-22 12:53:54,949 INFO L87 Difference]: Start difference. First operand 707 states and 914 transitions. Second operand has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 12:53:55,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:53:55,169 INFO L93 Difference]: Finished difference Result 1435 states and 1853 transitions. [2024-11-22 12:53:55,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 12:53:55,169 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 139 [2024-11-22 12:53:55,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:53:55,173 INFO L225 Difference]: With dead ends: 1435 [2024-11-22 12:53:55,173 INFO L226 Difference]: Without dead ends: 731 [2024-11-22 12:53:55,174 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2024-11-22 12:53:55,176 INFO L432 NwaCegarLoop]: 134 mSDtfsCounter, 54 mSDsluCounter, 854 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 988 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 12:53:55,176 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 988 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 12:53:55,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 731 states. [2024-11-22 12:53:55,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 731 to 719. [2024-11-22 12:53:55,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 719 states, 628 states have (on average 1.2515923566878981) internal successors, (786), 634 states have internal predecessors, (786), 70 states have call successors, (70), 20 states have call predecessors, (70), 20 states have return successors, (70), 64 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-22 12:53:55,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 719 states and 926 transitions. [2024-11-22 12:53:55,219 INFO L78 Accepts]: Start accepts. Automaton has 719 states and 926 transitions. Word has length 139 [2024-11-22 12:53:55,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:53:55,219 INFO L471 AbstractCegarLoop]: Abstraction has 719 states and 926 transitions. [2024-11-22 12:53:55,219 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 12:53:55,220 INFO L276 IsEmpty]: Start isEmpty. Operand 719 states and 926 transitions. [2024-11-22 12:53:55,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-22 12:53:55,221 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:53:55,221 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:53:55,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-22 12:53:55,222 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:53:55,222 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:53:55,222 INFO L85 PathProgramCache]: Analyzing trace with hash 1376130766, now seen corresponding path program 1 times [2024-11-22 12:53:55,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:53:55,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910995407] [2024-11-22 12:53:55,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:53:55,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:53:55,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:53:55,396 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-22 12:53:55,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:53:55,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910995407] [2024-11-22 12:53:55,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910995407] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:53:55,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:53:55,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 12:53:55,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199448937] [2024-11-22 12:53:55,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:53:55,397 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 12:53:55,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:53:55,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 12:53:55,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 12:53:55,399 INFO L87 Difference]: Start difference. First operand 719 states and 926 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 12:53:55,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:53:55,492 INFO L93 Difference]: Finished difference Result 1613 states and 2076 transitions. [2024-11-22 12:53:55,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 12:53:55,492 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 139 [2024-11-22 12:53:55,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:53:55,495 INFO L225 Difference]: With dead ends: 1613 [2024-11-22 12:53:55,495 INFO L226 Difference]: Without dead ends: 897 [2024-11-22 12:53:55,496 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-22 12:53:55,497 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 73 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 12:53:55,497 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 469 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 12:53:55,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 897 states. [2024-11-22 12:53:55,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 897 to 743. [2024-11-22 12:53:55,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 743 states, 652 states have (on average 1.2484662576687116) internal successors, (814), 658 states have internal predecessors, (814), 70 states have call successors, (70), 20 states have call predecessors, (70), 20 states have return successors, (70), 64 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-22 12:53:55,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 743 states to 743 states and 954 transitions. [2024-11-22 12:53:55,537 INFO L78 Accepts]: Start accepts. Automaton has 743 states and 954 transitions. Word has length 139 [2024-11-22 12:53:55,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:53:55,537 INFO L471 AbstractCegarLoop]: Abstraction has 743 states and 954 transitions. [2024-11-22 12:53:55,537 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 12:53:55,537 INFO L276 IsEmpty]: Start isEmpty. Operand 743 states and 954 transitions. [2024-11-22 12:53:55,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-22 12:53:55,538 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:53:55,539 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:53:55,539 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-22 12:53:55,539 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:53:55,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:53:55,539 INFO L85 PathProgramCache]: Analyzing trace with hash 2056189136, now seen corresponding path program 1 times [2024-11-22 12:53:55,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:53:55,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938962634] [2024-11-22 12:53:55,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:53:55,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:53:55,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:53:55,686 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 24 proven. 24 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-22 12:53:55,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:53:55,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938962634] [2024-11-22 12:53:55,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938962634] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 12:53:55,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1685169379] [2024-11-22 12:53:55,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:53:55,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 12:53:55,687 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 12:53:55,689 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 12:53:55,691 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 12:53:55,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:53:55,857 INFO L255 TraceCheckSpWp]: Trace formula consists of 544 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-22 12:53:55,860 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 12:53:55,900 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-22 12:53:55,901 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 12:53:55,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1685169379] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:53:55,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 12:53:55,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 10 [2024-11-22 12:53:55,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87226057] [2024-11-22 12:53:55,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:53:55,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 12:53:55,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:53:55,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 12:53:55,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-22 12:53:55,903 INFO L87 Difference]: Start difference. First operand 743 states and 954 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 12:53:55,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:53:55,962 INFO L93 Difference]: Finished difference Result 1505 states and 1933 transitions. [2024-11-22 12:53:55,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 12:53:55,963 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 139 [2024-11-22 12:53:55,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:53:55,965 INFO L225 Difference]: With dead ends: 1505 [2024-11-22 12:53:55,966 INFO L226 Difference]: Without dead ends: 765 [2024-11-22 12:53:55,967 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-22 12:53:55,967 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 0 mSDsluCounter, 480 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 606 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 12:53:55,967 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 606 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 12:53:55,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 765 states. [2024-11-22 12:53:56,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 765 to 753. [2024-11-22 12:53:56,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 753 states, 662 states have (on average 1.241691842900302) internal successors, (822), 668 states have internal predecessors, (822), 70 states have call successors, (70), 20 states have call predecessors, (70), 20 states have return successors, (70), 64 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-22 12:53:56,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 753 states to 753 states and 962 transitions. [2024-11-22 12:53:56,007 INFO L78 Accepts]: Start accepts. Automaton has 753 states and 962 transitions. Word has length 139 [2024-11-22 12:53:56,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:53:56,007 INFO L471 AbstractCegarLoop]: Abstraction has 753 states and 962 transitions. [2024-11-22 12:53:56,007 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 12:53:56,007 INFO L276 IsEmpty]: Start isEmpty. Operand 753 states and 962 transitions. [2024-11-22 12:53:56,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-22 12:53:56,009 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:53:56,009 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:53:56,017 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-22 12:53:56,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-22 12:53:56,210 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:53:56,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:53:56,210 INFO L85 PathProgramCache]: Analyzing trace with hash 1803321429, now seen corresponding path program 1 times [2024-11-22 12:53:56,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:53:56,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937573438] [2024-11-22 12:53:56,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:53:56,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:53:56,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:53:56,565 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-22 12:53:56,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:53:56,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937573438] [2024-11-22 12:53:56,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937573438] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:53:56,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:53:56,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 12:53:56,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61049845] [2024-11-22 12:53:56,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:53:56,567 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 12:53:56,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:53:56,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 12:53:56,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 12:53:56,568 INFO L87 Difference]: Start difference. First operand 753 states and 962 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 12:53:56,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:53:56,835 INFO L93 Difference]: Finished difference Result 1773 states and 2263 transitions. [2024-11-22 12:53:56,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 12:53:56,836 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 139 [2024-11-22 12:53:56,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:53:56,839 INFO L225 Difference]: With dead ends: 1773 [2024-11-22 12:53:56,839 INFO L226 Difference]: Without dead ends: 1023 [2024-11-22 12:53:56,840 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-22 12:53:56,841 INFO L432 NwaCegarLoop]: 164 mSDtfsCounter, 164 mSDsluCounter, 790 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 954 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 12:53:56,841 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 954 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 12:53:56,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1023 states. [2024-11-22 12:53:56,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1023 to 763. [2024-11-22 12:53:56,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 763 states, 672 states have (on average 1.2395833333333333) internal successors, (833), 678 states have internal predecessors, (833), 70 states have call successors, (70), 20 states have call predecessors, (70), 20 states have return successors, (70), 64 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-22 12:53:56,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 763 states to 763 states and 973 transitions. [2024-11-22 12:53:56,878 INFO L78 Accepts]: Start accepts. Automaton has 763 states and 973 transitions. Word has length 139 [2024-11-22 12:53:56,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:53:56,878 INFO L471 AbstractCegarLoop]: Abstraction has 763 states and 973 transitions. [2024-11-22 12:53:56,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 12:53:56,879 INFO L276 IsEmpty]: Start isEmpty. Operand 763 states and 973 transitions. [2024-11-22 12:53:56,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-22 12:53:56,880 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:53:56,880 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:53:56,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-22 12:53:56,880 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:53:56,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:53:56,880 INFO L85 PathProgramCache]: Analyzing trace with hash 2022176147, now seen corresponding path program 1 times [2024-11-22 12:53:56,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:53:56,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872902702] [2024-11-22 12:53:56,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:53:56,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:53:56,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:53:57,186 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 12 proven. 36 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-22 12:53:57,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:53:57,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872902702] [2024-11-22 12:53:57,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872902702] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 12:53:57,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1953213402] [2024-11-22 12:53:57,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:53:57,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 12:53:57,187 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 12:53:57,189 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 12:53:57,190 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 12:53:57,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:53:57,355 INFO L255 TraceCheckSpWp]: Trace formula consists of 543 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-22 12:53:57,363 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 12:53:57,408 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2024-11-22 12:53:57,454 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2024-11-22 12:53:57,458 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-22 12:53:57,520 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-22 12:53:57,521 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 12:53:57,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1953213402] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:53:57,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 12:53:57,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [8] total 16 [2024-11-22 12:53:57,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063537490] [2024-11-22 12:53:57,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:53:57,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 12:53:57,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:53:57,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 12:53:57,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=208, Unknown=0, NotChecked=0, Total=240 [2024-11-22 12:53:57,522 INFO L87 Difference]: Start difference. First operand 763 states and 973 transitions. Second operand has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 12:53:57,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:53:57,787 INFO L93 Difference]: Finished difference Result 1797 states and 2289 transitions. [2024-11-22 12:53:57,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 12:53:57,787 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 139 [2024-11-22 12:53:57,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:53:57,791 INFO L225 Difference]: With dead ends: 1797 [2024-11-22 12:53:57,791 INFO L226 Difference]: Without dead ends: 1037 [2024-11-22 12:53:57,792 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=366, Unknown=0, NotChecked=0, Total=420 [2024-11-22 12:53:57,792 INFO L432 NwaCegarLoop]: 164 mSDtfsCounter, 56 mSDsluCounter, 1165 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 1329 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 12:53:57,793 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 1329 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 12:53:57,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1037 states. [2024-11-22 12:53:57,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1037 to 907. [2024-11-22 12:53:57,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 907 states, 816 states have (on average 1.25) internal successors, (1020), 822 states have internal predecessors, (1020), 70 states have call successors, (70), 20 states have call predecessors, (70), 20 states have return successors, (70), 64 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-22 12:53:57,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 907 states to 907 states and 1160 transitions. [2024-11-22 12:53:57,828 INFO L78 Accepts]: Start accepts. Automaton has 907 states and 1160 transitions. Word has length 139 [2024-11-22 12:53:57,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:53:57,829 INFO L471 AbstractCegarLoop]: Abstraction has 907 states and 1160 transitions. [2024-11-22 12:53:57,829 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 12:53:57,829 INFO L276 IsEmpty]: Start isEmpty. Operand 907 states and 1160 transitions. [2024-11-22 12:53:57,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-22 12:53:57,830 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:53:57,830 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:53:57,839 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-22 12:53:58,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 12:53:58,031 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:53:58,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:53:58,032 INFO L85 PathProgramCache]: Analyzing trace with hash -1592732779, now seen corresponding path program 1 times [2024-11-22 12:53:58,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:53:58,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169876616] [2024-11-22 12:53:58,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:53:58,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:53:58,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:53:58,122 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-22 12:53:58,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:53:58,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169876616] [2024-11-22 12:53:58,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169876616] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:53:58,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:53:58,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 12:53:58,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948899552] [2024-11-22 12:53:58,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:53:58,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 12:53:58,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:53:58,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 12:53:58,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 12:53:58,125 INFO L87 Difference]: Start difference. First operand 907 states and 1160 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 12:53:58,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:53:58,229 INFO L93 Difference]: Finished difference Result 1951 states and 2484 transitions. [2024-11-22 12:53:58,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 12:53:58,230 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 139 [2024-11-22 12:53:58,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:53:58,233 INFO L225 Difference]: With dead ends: 1951 [2024-11-22 12:53:58,233 INFO L226 Difference]: Without dead ends: 1047 [2024-11-22 12:53:58,234 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 12:53:58,235 INFO L432 NwaCegarLoop]: 183 mSDtfsCounter, 54 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 12:53:58,236 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 494 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 12:53:58,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1047 states. [2024-11-22 12:53:58,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1047 to 903. [2024-11-22 12:53:58,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 903 states, 812 states have (on average 1.2463054187192117) internal successors, (1012), 818 states have internal predecessors, (1012), 70 states have call successors, (70), 20 states have call predecessors, (70), 20 states have return successors, (70), 64 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-22 12:53:58,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 903 states to 903 states and 1152 transitions. [2024-11-22 12:53:58,271 INFO L78 Accepts]: Start accepts. Automaton has 903 states and 1152 transitions. Word has length 139 [2024-11-22 12:53:58,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:53:58,271 INFO L471 AbstractCegarLoop]: Abstraction has 903 states and 1152 transitions. [2024-11-22 12:53:58,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 12:53:58,271 INFO L276 IsEmpty]: Start isEmpty. Operand 903 states and 1152 transitions. [2024-11-22 12:53:58,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-22 12:53:58,272 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:53:58,272 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:53:58,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-22 12:53:58,273 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:53:58,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:53:58,273 INFO L85 PathProgramCache]: Analyzing trace with hash -597753543, now seen corresponding path program 1 times [2024-11-22 12:53:58,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:53:58,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528856942] [2024-11-22 12:53:58,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:53:58,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:53:58,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:53:58,932 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-22 12:53:58,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:53:58,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528856942] [2024-11-22 12:53:58,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528856942] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:53:58,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:53:58,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-22 12:53:58,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564397975] [2024-11-22 12:53:58,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:53:58,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-22 12:53:58,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:53:58,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-22 12:53:58,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-22 12:53:58,934 INFO L87 Difference]: Start difference. First operand 903 states and 1152 transitions. Second operand has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-22 12:53:59,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:53:59,529 INFO L93 Difference]: Finished difference Result 1987 states and 2522 transitions. [2024-11-22 12:53:59,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 12:53:59,530 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 139 [2024-11-22 12:53:59,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:53:59,533 INFO L225 Difference]: With dead ends: 1987 [2024-11-22 12:53:59,533 INFO L226 Difference]: Without dead ends: 1087 [2024-11-22 12:53:59,535 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2024-11-22 12:53:59,535 INFO L432 NwaCegarLoop]: 164 mSDtfsCounter, 448 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 448 SdHoareTripleChecker+Valid, 869 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 12:53:59,535 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [448 Valid, 869 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 12:53:59,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1087 states. [2024-11-22 12:53:59,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1087 to 967. [2024-11-22 12:53:59,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 967 states, 858 states have (on average 1.2377622377622377) internal successors, (1062), 865 states have internal predecessors, (1062), 82 states have call successors, (82), 26 states have call predecessors, (82), 26 states have return successors, (82), 75 states have call predecessors, (82), 82 states have call successors, (82) [2024-11-22 12:53:59,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 967 states to 967 states and 1226 transitions. [2024-11-22 12:53:59,598 INFO L78 Accepts]: Start accepts. Automaton has 967 states and 1226 transitions. Word has length 139 [2024-11-22 12:53:59,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:53:59,598 INFO L471 AbstractCegarLoop]: Abstraction has 967 states and 1226 transitions. [2024-11-22 12:53:59,598 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-22 12:53:59,599 INFO L276 IsEmpty]: Start isEmpty. Operand 967 states and 1226 transitions. [2024-11-22 12:53:59,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-22 12:53:59,600 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:53:59,600 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:53:59,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-22 12:53:59,600 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:53:59,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:53:59,600 INFO L85 PathProgramCache]: Analyzing trace with hash 1346795056, now seen corresponding path program 1 times [2024-11-22 12:53:59,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:53:59,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878758199] [2024-11-22 12:53:59,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:53:59,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:53:59,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:53:59,799 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-22 12:53:59,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:53:59,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878758199] [2024-11-22 12:53:59,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878758199] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:53:59,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:53:59,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 12:53:59,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976590881] [2024-11-22 12:53:59,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:53:59,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 12:53:59,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:53:59,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 12:53:59,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 12:53:59,803 INFO L87 Difference]: Start difference. First operand 967 states and 1226 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 12:53:59,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:53:59,939 INFO L93 Difference]: Finished difference Result 2041 states and 2586 transitions. [2024-11-22 12:53:59,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-22 12:53:59,939 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 139 [2024-11-22 12:53:59,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:53:59,943 INFO L225 Difference]: With dead ends: 2041 [2024-11-22 12:53:59,943 INFO L226 Difference]: Without dead ends: 1094 [2024-11-22 12:53:59,945 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-22 12:53:59,946 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 62 mSDsluCounter, 791 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 970 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 12:53:59,946 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 970 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 12:53:59,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1094 states. [2024-11-22 12:54:00,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1094 to 997. [2024-11-22 12:54:00,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 997 states, 888 states have (on average 1.240990990990991) internal successors, (1102), 895 states have internal predecessors, (1102), 82 states have call successors, (82), 26 states have call predecessors, (82), 26 states have return successors, (82), 75 states have call predecessors, (82), 82 states have call successors, (82) [2024-11-22 12:54:00,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 997 states to 997 states and 1266 transitions. [2024-11-22 12:54:00,040 INFO L78 Accepts]: Start accepts. Automaton has 997 states and 1266 transitions. Word has length 139 [2024-11-22 12:54:00,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:54:00,040 INFO L471 AbstractCegarLoop]: Abstraction has 997 states and 1266 transitions. [2024-11-22 12:54:00,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 12:54:00,041 INFO L276 IsEmpty]: Start isEmpty. Operand 997 states and 1266 transitions. [2024-11-22 12:54:00,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-22 12:54:00,042 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:54:00,042 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:54:00,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-22 12:54:00,043 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:54:00,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:54:00,043 INFO L85 PathProgramCache]: Analyzing trace with hash 850117294, now seen corresponding path program 1 times [2024-11-22 12:54:00,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:54:00,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726339873] [2024-11-22 12:54:00,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:54:00,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:54:00,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:54:00,286 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-22 12:54:00,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:54:00,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726339873] [2024-11-22 12:54:00,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726339873] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:54:00,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:54:00,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 12:54:00,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462605915] [2024-11-22 12:54:00,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:54:00,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 12:54:00,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:54:00,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 12:54:00,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 12:54:00,288 INFO L87 Difference]: Start difference. First operand 997 states and 1266 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 12:54:00,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:54:00,428 INFO L93 Difference]: Finished difference Result 1978 states and 2505 transitions. [2024-11-22 12:54:00,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 12:54:00,429 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 140 [2024-11-22 12:54:00,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:54:00,433 INFO L225 Difference]: With dead ends: 1978 [2024-11-22 12:54:00,433 INFO L226 Difference]: Without dead ends: 1001 [2024-11-22 12:54:00,435 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 12:54:00,436 INFO L432 NwaCegarLoop]: 156 mSDtfsCounter, 58 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 12:54:00,436 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 545 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 12:54:00,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1001 states. [2024-11-22 12:54:00,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1001 to 975. [2024-11-22 12:54:00,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 975 states, 862 states have (on average 1.2250580046403712) internal successors, (1056), 869 states have internal predecessors, (1056), 82 states have call successors, (82), 30 states have call predecessors, (82), 30 states have return successors, (82), 75 states have call predecessors, (82), 82 states have call successors, (82) [2024-11-22 12:54:00,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 975 states to 975 states and 1220 transitions. [2024-11-22 12:54:00,493 INFO L78 Accepts]: Start accepts. Automaton has 975 states and 1220 transitions. Word has length 140 [2024-11-22 12:54:00,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:54:00,494 INFO L471 AbstractCegarLoop]: Abstraction has 975 states and 1220 transitions. [2024-11-22 12:54:00,494 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 12:54:00,494 INFO L276 IsEmpty]: Start isEmpty. Operand 975 states and 1220 transitions. [2024-11-22 12:54:00,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-22 12:54:00,495 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:54:00,495 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:54:00,495 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-22 12:54:00,496 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:54:00,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:54:00,496 INFO L85 PathProgramCache]: Analyzing trace with hash 1684666373, now seen corresponding path program 1 times [2024-11-22 12:54:00,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:54:00,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421772054] [2024-11-22 12:54:00,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:54:00,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:54:00,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:54:00,946 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-22 12:54:00,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:54:00,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421772054] [2024-11-22 12:54:00,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421772054] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:54:00,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:54:00,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-22 12:54:00,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886893867] [2024-11-22 12:54:00,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:54:00,947 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 12:54:00,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:54:00,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 12:54:00,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-22 12:54:00,948 INFO L87 Difference]: Start difference. First operand 975 states and 1220 transitions. Second operand has 10 states, 9 states have (on average 6.555555555555555) internal successors, (59), 10 states have internal predecessors, (59), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-22 12:54:01,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:54:01,309 INFO L93 Difference]: Finished difference Result 1563 states and 1908 transitions. [2024-11-22 12:54:01,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 12:54:01,309 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.555555555555555) internal successors, (59), 10 states have internal predecessors, (59), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 141 [2024-11-22 12:54:01,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:54:01,315 INFO L225 Difference]: With dead ends: 1563 [2024-11-22 12:54:01,315 INFO L226 Difference]: Without dead ends: 1561 [2024-11-22 12:54:01,316 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2024-11-22 12:54:01,316 INFO L432 NwaCegarLoop]: 163 mSDtfsCounter, 174 mSDsluCounter, 820 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 983 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 12:54:01,316 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 983 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 12:54:01,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1561 states. [2024-11-22 12:54:01,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1561 to 1557. [2024-11-22 12:54:01,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1557 states, 1344 states have (on average 1.181547619047619) internal successors, (1588), 1359 states have internal predecessors, (1588), 154 states have call successors, (154), 58 states have call predecessors, (154), 58 states have return successors, (154), 139 states have call predecessors, (154), 154 states have call successors, (154) [2024-11-22 12:54:01,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1557 states to 1557 states and 1896 transitions. [2024-11-22 12:54:01,423 INFO L78 Accepts]: Start accepts. Automaton has 1557 states and 1896 transitions. Word has length 141 [2024-11-22 12:54:01,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:54:01,423 INFO L471 AbstractCegarLoop]: Abstraction has 1557 states and 1896 transitions. [2024-11-22 12:54:01,424 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.555555555555555) internal successors, (59), 10 states have internal predecessors, (59), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-22 12:54:01,424 INFO L276 IsEmpty]: Start isEmpty. Operand 1557 states and 1896 transitions. [2024-11-22 12:54:01,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-22 12:54:01,425 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:54:01,425 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:54:01,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-22 12:54:01,426 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:54:01,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:54:01,427 INFO L85 PathProgramCache]: Analyzing trace with hash -1037781860, now seen corresponding path program 1 times [2024-11-22 12:54:01,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:54:01,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539604972] [2024-11-22 12:54:01,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:54:01,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:54:01,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:54:01,604 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-22 12:54:01,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:54:01,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539604972] [2024-11-22 12:54:01,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539604972] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:54:01,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:54:01,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 12:54:01,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524234138] [2024-11-22 12:54:01,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:54:01,605 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 12:54:01,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:54:01,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 12:54:01,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 12:54:01,606 INFO L87 Difference]: Start difference. First operand 1557 states and 1896 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 12:54:01,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:54:01,800 INFO L93 Difference]: Finished difference Result 3554 states and 4316 transitions. [2024-11-22 12:54:01,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 12:54:01,803 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 141 [2024-11-22 12:54:01,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:54:01,815 INFO L225 Difference]: With dead ends: 3554 [2024-11-22 12:54:01,816 INFO L226 Difference]: Without dead ends: 2017 [2024-11-22 12:54:01,818 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-22 12:54:01,819 INFO L432 NwaCegarLoop]: 196 mSDtfsCounter, 116 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 12:54:01,819 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 493 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 12:54:01,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2017 states. [2024-11-22 12:54:01,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2017 to 1731. [2024-11-22 12:54:01,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1731 states, 1518 states have (on average 1.1758893280632412) internal successors, (1785), 1533 states have internal predecessors, (1785), 154 states have call successors, (154), 58 states have call predecessors, (154), 58 states have return successors, (154), 139 states have call predecessors, (154), 154 states have call successors, (154) [2024-11-22 12:54:01,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1731 states to 1731 states and 2093 transitions. [2024-11-22 12:54:01,940 INFO L78 Accepts]: Start accepts. Automaton has 1731 states and 2093 transitions. Word has length 141 [2024-11-22 12:54:01,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:54:01,941 INFO L471 AbstractCegarLoop]: Abstraction has 1731 states and 2093 transitions. [2024-11-22 12:54:01,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 12:54:01,941 INFO L276 IsEmpty]: Start isEmpty. Operand 1731 states and 2093 transitions. [2024-11-22 12:54:01,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-22 12:54:01,944 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:54:01,944 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:54:01,944 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-22 12:54:01,944 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:54:01,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:54:01,944 INFO L85 PathProgramCache]: Analyzing trace with hash 339047129, now seen corresponding path program 1 times [2024-11-22 12:54:01,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:54:01,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183461139] [2024-11-22 12:54:01,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:54:01,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:54:01,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:54:02,204 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-22 12:54:02,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:54:02,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183461139] [2024-11-22 12:54:02,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183461139] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:54:02,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:54:02,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 12:54:02,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894977115] [2024-11-22 12:54:02,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:54:02,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 12:54:02,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:54:02,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 12:54:02,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 12:54:02,206 INFO L87 Difference]: Start difference. First operand 1731 states and 2093 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 12:54:02,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:54:02,398 INFO L93 Difference]: Finished difference Result 3398 states and 4097 transitions. [2024-11-22 12:54:02,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 12:54:02,398 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 142 [2024-11-22 12:54:02,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:54:02,408 INFO L225 Difference]: With dead ends: 3398 [2024-11-22 12:54:02,408 INFO L226 Difference]: Without dead ends: 1687 [2024-11-22 12:54:02,410 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 12:54:02,411 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 58 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 496 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 12:54:02,411 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 496 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 12:54:02,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1687 states. [2024-11-22 12:54:02,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1687 to 1677. [2024-11-22 12:54:02,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1677 states, 1464 states have (on average 1.1584699453551912) internal successors, (1696), 1479 states have internal predecessors, (1696), 154 states have call successors, (154), 58 states have call predecessors, (154), 58 states have return successors, (154), 139 states have call predecessors, (154), 154 states have call successors, (154) [2024-11-22 12:54:02,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1677 states to 1677 states and 2004 transitions. [2024-11-22 12:54:02,543 INFO L78 Accepts]: Start accepts. Automaton has 1677 states and 2004 transitions. Word has length 142 [2024-11-22 12:54:02,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:54:02,543 INFO L471 AbstractCegarLoop]: Abstraction has 1677 states and 2004 transitions. [2024-11-22 12:54:02,544 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 12:54:02,544 INFO L276 IsEmpty]: Start isEmpty. Operand 1677 states and 2004 transitions. [2024-11-22 12:54:02,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-22 12:54:02,546 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:54:02,546 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:54:02,546 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-22 12:54:02,546 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:54:02,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:54:02,547 INFO L85 PathProgramCache]: Analyzing trace with hash -840470491, now seen corresponding path program 1 times [2024-11-22 12:54:02,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:54:02,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983633348] [2024-11-22 12:54:02,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:54:02,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:54:02,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:54:02,764 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-22 12:54:02,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:54:02,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983633348] [2024-11-22 12:54:02,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983633348] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:54:02,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:54:02,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 12:54:02,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174013931] [2024-11-22 12:54:02,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:54:02,765 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 12:54:02,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:54:02,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 12:54:02,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 12:54:02,766 INFO L87 Difference]: Start difference. First operand 1677 states and 2004 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 12:54:02,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:54:02,876 INFO L93 Difference]: Finished difference Result 2867 states and 3449 transitions. [2024-11-22 12:54:02,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 12:54:02,877 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 142 [2024-11-22 12:54:02,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:54:02,881 INFO L225 Difference]: With dead ends: 2867 [2024-11-22 12:54:02,881 INFO L226 Difference]: Without dead ends: 1148 [2024-11-22 12:54:02,883 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-22 12:54:02,884 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 80 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 12:54:02,884 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 471 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 12:54:02,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1148 states. [2024-11-22 12:54:02,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1148 to 1112. [2024-11-22 12:54:02,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1112 states, 951 states have (on average 1.1503680336487907) internal successors, (1094), 961 states have internal predecessors, (1094), 118 states have call successors, (118), 42 states have call predecessors, (118), 42 states have return successors, (118), 108 states have call predecessors, (118), 118 states have call successors, (118) [2024-11-22 12:54:02,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1112 states to 1112 states and 1330 transitions. [2024-11-22 12:54:02,961 INFO L78 Accepts]: Start accepts. Automaton has 1112 states and 1330 transitions. Word has length 142 [2024-11-22 12:54:02,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:54:02,961 INFO L471 AbstractCegarLoop]: Abstraction has 1112 states and 1330 transitions. [2024-11-22 12:54:02,961 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 12:54:02,961 INFO L276 IsEmpty]: Start isEmpty. Operand 1112 states and 1330 transitions. [2024-11-22 12:54:02,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-22 12:54:02,962 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:54:02,963 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:54:02,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-22 12:54:02,963 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:54:02,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:54:02,965 INFO L85 PathProgramCache]: Analyzing trace with hash -996369262, now seen corresponding path program 1 times [2024-11-22 12:54:02,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:54:02,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302252323] [2024-11-22 12:54:02,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:54:02,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:54:02,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:54:03,128 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-22 12:54:03,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:54:03,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302252323] [2024-11-22 12:54:03,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302252323] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:54:03,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:54:03,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 12:54:03,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637448864] [2024-11-22 12:54:03,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:54:03,130 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 12:54:03,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:54:03,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 12:54:03,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 12:54:03,131 INFO L87 Difference]: Start difference. First operand 1112 states and 1330 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 12:54:03,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:54:03,241 INFO L93 Difference]: Finished difference Result 2200 states and 2624 transitions. [2024-11-22 12:54:03,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 12:54:03,241 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 143 [2024-11-22 12:54:03,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:54:03,245 INFO L225 Difference]: With dead ends: 2200 [2024-11-22 12:54:03,245 INFO L226 Difference]: Without dead ends: 1091 [2024-11-22 12:54:03,247 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-22 12:54:03,247 INFO L432 NwaCegarLoop]: 192 mSDtfsCounter, 86 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 594 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 12:54:03,248 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 594 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 12:54:03,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1091 states. [2024-11-22 12:54:03,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1091 to 1051. [2024-11-22 12:54:03,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1051 states, 890 states have (on average 1.1404494382022472) internal successors, (1015), 900 states have internal predecessors, (1015), 118 states have call successors, (118), 42 states have call predecessors, (118), 42 states have return successors, (118), 108 states have call predecessors, (118), 118 states have call successors, (118) [2024-11-22 12:54:03,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1051 states to 1051 states and 1251 transitions. [2024-11-22 12:54:03,327 INFO L78 Accepts]: Start accepts. Automaton has 1051 states and 1251 transitions. Word has length 143 [2024-11-22 12:54:03,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:54:03,327 INFO L471 AbstractCegarLoop]: Abstraction has 1051 states and 1251 transitions. [2024-11-22 12:54:03,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 12:54:03,327 INFO L276 IsEmpty]: Start isEmpty. Operand 1051 states and 1251 transitions. [2024-11-22 12:54:03,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-22 12:54:03,329 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:54:03,329 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:54:03,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-22 12:54:03,329 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:54:03,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:54:03,329 INFO L85 PathProgramCache]: Analyzing trace with hash 1560829808, now seen corresponding path program 1 times [2024-11-22 12:54:03,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:54:03,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212781676] [2024-11-22 12:54:03,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:54:03,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:54:03,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:54:03,490 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-22 12:54:03,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:54:03,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212781676] [2024-11-22 12:54:03,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212781676] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:54:03,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:54:03,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 12:54:03,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812275248] [2024-11-22 12:54:03,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:54:03,491 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 12:54:03,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:54:03,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 12:54:03,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 12:54:03,492 INFO L87 Difference]: Start difference. First operand 1051 states and 1251 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 12:54:03,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:54:03,629 INFO L93 Difference]: Finished difference Result 2077 states and 2457 transitions. [2024-11-22 12:54:03,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 12:54:03,630 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 144 [2024-11-22 12:54:03,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:54:03,633 INFO L225 Difference]: With dead ends: 2077 [2024-11-22 12:54:03,634 INFO L226 Difference]: Without dead ends: 1029 [2024-11-22 12:54:03,635 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-22 12:54:03,635 INFO L432 NwaCegarLoop]: 125 mSDtfsCounter, 95 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 12:54:03,635 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 353 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 12:54:03,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1029 states. [2024-11-22 12:54:03,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1029 to 995. [2024-11-22 12:54:03,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 995 states, 834 states have (on average 1.1115107913669064) internal successors, (927), 844 states have internal predecessors, (927), 118 states have call successors, (118), 42 states have call predecessors, (118), 42 states have return successors, (118), 108 states have call predecessors, (118), 118 states have call successors, (118) [2024-11-22 12:54:03,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 995 states to 995 states and 1163 transitions. [2024-11-22 12:54:03,708 INFO L78 Accepts]: Start accepts. Automaton has 995 states and 1163 transitions. Word has length 144 [2024-11-22 12:54:03,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:54:03,708 INFO L471 AbstractCegarLoop]: Abstraction has 995 states and 1163 transitions. [2024-11-22 12:54:03,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 12:54:03,708 INFO L276 IsEmpty]: Start isEmpty. Operand 995 states and 1163 transitions. [2024-11-22 12:54:03,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-22 12:54:03,709 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:54:03,710 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:54:03,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-22 12:54:03,710 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:54:03,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:54:03,710 INFO L85 PathProgramCache]: Analyzing trace with hash -1027029127, now seen corresponding path program 1 times [2024-11-22 12:54:03,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:54:03,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545262387] [2024-11-22 12:54:03,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:54:03,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:54:03,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:54:04,221 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-22 12:54:04,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:54:04,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545262387] [2024-11-22 12:54:04,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545262387] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:54:04,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:54:04,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-22 12:54:04,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993553981] [2024-11-22 12:54:04,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:54:04,222 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 12:54:04,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:54:04,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 12:54:04,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-22 12:54:04,223 INFO L87 Difference]: Start difference. First operand 995 states and 1163 transitions. Second operand has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 9 states have internal predecessors, (62), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 12:54:04,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:54:04,476 INFO L93 Difference]: Finished difference Result 1286 states and 1504 transitions. [2024-11-22 12:54:04,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 12:54:04,477 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 9 states have internal predecessors, (62), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 144 [2024-11-22 12:54:04,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:54:04,481 INFO L225 Difference]: With dead ends: 1286 [2024-11-22 12:54:04,481 INFO L226 Difference]: Without dead ends: 1284 [2024-11-22 12:54:04,482 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2024-11-22 12:54:04,482 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 67 mSDsluCounter, 1134 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 1315 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 12:54:04,482 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 1315 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 12:54:04,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1284 states. [2024-11-22 12:54:04,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1284 to 1280. [2024-11-22 12:54:04,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1280 states, 1069 states have (on average 1.1113189897100093) internal successors, (1188), 1083 states have internal predecessors, (1188), 154 states have call successors, (154), 56 states have call predecessors, (154), 56 states have return successors, (154), 140 states have call predecessors, (154), 154 states have call successors, (154) [2024-11-22 12:54:04,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1280 states to 1280 states and 1496 transitions. [2024-11-22 12:54:04,586 INFO L78 Accepts]: Start accepts. Automaton has 1280 states and 1496 transitions. Word has length 144 [2024-11-22 12:54:04,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:54:04,586 INFO L471 AbstractCegarLoop]: Abstraction has 1280 states and 1496 transitions. [2024-11-22 12:54:04,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 9 states have internal predecessors, (62), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 12:54:04,586 INFO L276 IsEmpty]: Start isEmpty. Operand 1280 states and 1496 transitions. [2024-11-22 12:54:04,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-22 12:54:04,587 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:54:04,587 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:54:04,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-22 12:54:04,588 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:54:04,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:54:04,588 INFO L85 PathProgramCache]: Analyzing trace with hash 747978235, now seen corresponding path program 1 times [2024-11-22 12:54:04,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:54:04,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38010620] [2024-11-22 12:54:04,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:54:04,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:54:04,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat