./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-32.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 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-32.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 50aaa9c38941e3902867fed1ab11249c92826155dddcdcedd0a40439bce25b5e --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 12:54:40,043 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 12:54:40,099 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 12:54:40,104 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 12:54:40,104 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 12:54:40,127 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 12:54:40,128 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 12:54:40,128 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 12:54:40,129 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 12:54:40,130 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 12:54:40,130 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 12:54:40,130 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 12:54:40,131 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 12:54:40,131 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 12:54:40,131 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 12:54:40,132 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 12:54:40,132 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 12:54:40,133 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 12:54:40,133 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 12:54:40,133 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 12:54:40,133 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 12:54:40,136 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 12:54:40,136 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 12:54:40,136 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 12:54:40,136 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 12:54:40,137 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 12:54:40,137 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 12:54:40,138 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 12:54:40,138 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 12:54:40,138 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 12:54:40,138 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 12:54:40,138 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 12:54:40,138 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 12:54:40,139 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 12:54:40,139 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 12:54:40,139 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 12:54:40,139 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 12:54:40,139 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 12:54:40,139 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 12:54:40,139 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 12:54:40,140 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 12:54:40,140 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 12:54:40,140 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 50aaa9c38941e3902867fed1ab11249c92826155dddcdcedd0a40439bce25b5e [2024-11-22 12:54:40,333 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 12:54:40,347 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 12:54:40,349 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 12:54:40,350 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 12:54:40,352 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 12:54:40,353 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-32.i [2024-11-22 12:54:41,520 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 12:54:41,663 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 12:54:41,663 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-32.i [2024-11-22 12:54:41,671 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30b1e6a66/069b4fba24b042d7968d694b8b776bde/FLAG9bdd23c79 [2024-11-22 12:54:42,071 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30b1e6a66/069b4fba24b042d7968d694b8b776bde [2024-11-22 12:54:42,073 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 12:54:42,073 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 12:54:42,074 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 12:54:42,074 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 12:54:42,078 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 12:54:42,079 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:54:42" (1/1) ... [2024-11-22 12:54:42,079 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48fbe490 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:54:42, skipping insertion in model container [2024-11-22 12:54:42,080 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:54:42" (1/1) ... [2024-11-22 12:54:42,103 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 12:54:42,228 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-32.i[916,929] [2024-11-22 12:54:42,272 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 12:54:42,284 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 12:54:42,293 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-32.i[916,929] [2024-11-22 12:54:42,318 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 12:54:42,333 INFO L204 MainTranslator]: Completed translation [2024-11-22 12:54:42,334 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:54:42 WrapperNode [2024-11-22 12:54:42,334 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 12:54:42,335 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 12:54:42,335 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 12:54:42,335 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 12:54:42,340 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:54:42" (1/1) ... [2024-11-22 12:54:42,353 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:54:42" (1/1) ... [2024-11-22 12:54:42,383 INFO L138 Inliner]: procedures = 26, calls = 165, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 466 [2024-11-22 12:54:42,383 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 12:54:42,384 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 12:54:42,384 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 12:54:42,384 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 12:54:42,392 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:54:42" (1/1) ... [2024-11-22 12:54:42,393 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:54:42" (1/1) ... [2024-11-22 12:54:42,403 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:54:42" (1/1) ... [2024-11-22 12:54:42,421 INFO L175 MemorySlicer]: Split 124 memory accesses to 13 slices as follows [2, 7, 18, 20, 8, 8, 12, 12, 8, 6, 7, 10, 6]. 16 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]. The 15 writes are split as follows [0, 1, 1, 1, 1, 2, 1, 1, 1, 1, 3, 1, 1]. [2024-11-22 12:54:42,421 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:54:42" (1/1) ... [2024-11-22 12:54:42,421 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:54:42" (1/1) ... [2024-11-22 12:54:42,434 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:54:42" (1/1) ... [2024-11-22 12:54:42,438 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:54:42" (1/1) ... [2024-11-22 12:54:42,446 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:54:42" (1/1) ... [2024-11-22 12:54:42,448 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:54:42" (1/1) ... [2024-11-22 12:54:42,458 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 12:54:42,460 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 12:54:42,460 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 12:54:42,460 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 12:54:42,461 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:54:42" (1/1) ... [2024-11-22 12:54:42,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 12:54:42,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 12:54:42,493 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 12:54:42,495 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 12:54:42,532 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 12:54:42,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-22 12:54:42,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-22 12:54:42,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-22 12:54:42,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-22 12:54:42,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-22 12:54:42,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-22 12:54:42,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-22 12:54:42,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-22 12:54:42,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-22 12:54:42,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-22 12:54:42,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-22 12:54:42,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-11-22 12:54:42,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-11-22 12:54:42,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-22 12:54:42,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-22 12:54:42,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-22 12:54:42,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-22 12:54:42,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-22 12:54:42,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-22 12:54:42,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-22 12:54:42,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-22 12:54:42,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-22 12:54:42,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-22 12:54:42,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-22 12:54:42,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-11-22 12:54:42,537 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-11-22 12:54:42,537 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-22 12:54:42,537 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-22 12:54:42,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 12:54:42,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-22 12:54:42,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-22 12:54:42,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-22 12:54:42,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-22 12:54:42,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-22 12:54:42,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-22 12:54:42,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-22 12:54:42,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-22 12:54:42,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-22 12:54:42,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-22 12:54:42,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-22 12:54:42,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-22 12:54:42,538 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 12:54:42,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 12:54:42,683 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 12:54:42,684 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 12:54:43,058 INFO L? ?]: Removed 107 outVars from TransFormulas that were not future-live. [2024-11-22 12:54:43,058 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 12:54:43,072 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 12:54:43,073 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 12:54:43,073 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:54:43 BoogieIcfgContainer [2024-11-22 12:54:43,073 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 12:54:43,076 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 12:54:43,076 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 12:54:43,079 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 12:54:43,080 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:54:42" (1/3) ... [2024-11-22 12:54:43,080 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@737a71be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:54:43, skipping insertion in model container [2024-11-22 12:54:43,081 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:54:42" (2/3) ... [2024-11-22 12:54:43,081 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@737a71be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:54:43, skipping insertion in model container [2024-11-22 12:54:43,081 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:54:43" (3/3) ... [2024-11-22 12:54:43,082 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-32.i [2024-11-22 12:54:43,099 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 12:54:43,099 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 12:54:43,150 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 12:54:43,155 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;@8b09fdb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 12:54:43,156 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 12:54:43,159 INFO L276 IsEmpty]: Start isEmpty. Operand has 99 states, 78 states have (on average 1.3717948717948718) internal successors, (107), 79 states have internal predecessors, (107), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-22 12:54:43,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-22 12:54:43,170 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:54:43,171 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:54:43,171 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:54:43,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:54:43,176 INFO L85 PathProgramCache]: Analyzing trace with hash -2092387816, now seen corresponding path program 1 times [2024-11-22 12:54:43,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:54:43,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524136130] [2024-11-22 12:54:43,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:54:43,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:54:43,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:54:43,513 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2024-11-22 12:54:43,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:54:43,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524136130] [2024-11-22 12:54:43,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524136130] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 12:54:43,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1211725524] [2024-11-22 12:54:43,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:54:43,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 12:54:43,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 12:54:43,520 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 12:54:43,521 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 12:54:43,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:54:43,699 INFO L255 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-22 12:54:43,707 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 12:54:43,733 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2024-11-22 12:54:43,734 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 12:54:43,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1211725524] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:54:43,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 12:54:43,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-22 12:54:43,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899208722] [2024-11-22 12:54:43,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:54:43,743 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 12:54:43,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:54:43,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 12:54:43,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 12:54:43,782 INFO L87 Difference]: Start difference. First operand has 99 states, 78 states have (on average 1.3717948717948718) internal successors, (107), 79 states have internal predecessors, (107), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-22 12:54:43,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:54:43,803 INFO L93 Difference]: Finished difference Result 191 states and 298 transitions. [2024-11-22 12:54:43,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 12:54:43,805 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 129 [2024-11-22 12:54:43,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:54:43,811 INFO L225 Difference]: With dead ends: 191 [2024-11-22 12:54:43,812 INFO L226 Difference]: Without dead ends: 95 [2024-11-22 12:54:43,815 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 130 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 12:54:43,820 INFO L432 NwaCegarLoop]: 132 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, 132 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 12:54:43,821 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 12:54:43,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-11-22 12:54:43,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2024-11-22 12:54:43,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 75 states have (on average 1.28) internal successors, (96), 75 states have internal predecessors, (96), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-22 12:54:43,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 132 transitions. [2024-11-22 12:54:43,863 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 132 transitions. Word has length 129 [2024-11-22 12:54:43,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:54:43,863 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 132 transitions. [2024-11-22 12:54:43,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-22 12:54:43,863 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 132 transitions. [2024-11-22 12:54:43,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-22 12:54:43,865 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:54:43,865 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:54:43,873 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 12:54:44,066 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 12:54:44,066 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:54:44,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:54:44,067 INFO L85 PathProgramCache]: Analyzing trace with hash 1151857908, now seen corresponding path program 1 times [2024-11-22 12:54:44,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:54:44,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158041989] [2024-11-22 12:54:44,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:54:44,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:54:44,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:54:44,299 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-22 12:54:44,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:54:44,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158041989] [2024-11-22 12:54:44,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158041989] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:54:44,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:54:44,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 12:54:44,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365378391] [2024-11-22 12:54:44,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:54:44,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 12:54:44,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:54:44,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 12:54:44,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 12:54:44,303 INFO L87 Difference]: Start difference. First operand 95 states and 132 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-22 12:54:44,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:54:44,420 INFO L93 Difference]: Finished difference Result 318 states and 444 transitions. [2024-11-22 12:54:44,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 12:54:44,423 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 129 [2024-11-22 12:54:44,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:54:44,425 INFO L225 Difference]: With dead ends: 318 [2024-11-22 12:54:44,425 INFO L226 Difference]: Without dead ends: 226 [2024-11-22 12:54:44,428 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 12:54:44,429 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 213 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 12:54:44,429 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 368 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 12:54:44,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2024-11-22 12:54:44,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 193. [2024-11-22 12:54:44,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 154 states have (on average 1.2857142857142858) internal successors, (198), 154 states have internal predecessors, (198), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-22 12:54:44,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 270 transitions. [2024-11-22 12:54:44,468 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 270 transitions. Word has length 129 [2024-11-22 12:54:44,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:54:44,469 INFO L471 AbstractCegarLoop]: Abstraction has 193 states and 270 transitions. [2024-11-22 12:54:44,469 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-22 12:54:44,469 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 270 transitions. [2024-11-22 12:54:44,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-22 12:54:44,472 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:54:44,472 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:54:44,472 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 12:54:44,473 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:54:44,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:54:44,473 INFO L85 PathProgramCache]: Analyzing trace with hash 732352654, now seen corresponding path program 1 times [2024-11-22 12:54:44,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:54:44,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219817085] [2024-11-22 12:54:44,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:54:44,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:54:44,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:54:45,293 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-22 12:54:45,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:54:45,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219817085] [2024-11-22 12:54:45,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219817085] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:54:45,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:54:45,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-22 12:54:45,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004224562] [2024-11-22 12:54:45,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:54:45,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 12:54:45,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:54:45,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 12:54:45,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-22 12:54:45,298 INFO L87 Difference]: Start difference. First operand 193 states and 270 transitions. Second operand has 10 states, 10 states have (on average 5.0) internal successors, (50), 10 states have internal predecessors, (50), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-22 12:54:45,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:54:45,529 INFO L93 Difference]: Finished difference Result 511 states and 714 transitions. [2024-11-22 12:54:45,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-22 12:54:45,529 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.0) internal successors, (50), 10 states have internal predecessors, (50), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 137 [2024-11-22 12:54:45,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:54:45,531 INFO L225 Difference]: With dead ends: 511 [2024-11-22 12:54:45,533 INFO L226 Difference]: Without dead ends: 321 [2024-11-22 12:54:45,534 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2024-11-22 12:54:45,537 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 80 mSDsluCounter, 873 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 991 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 12:54:45,537 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 991 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 12:54:45,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2024-11-22 12:54:45,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 317. [2024-11-22 12:54:45,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 268 states have (on average 1.3171641791044777) internal successors, (353), 270 states have internal predecessors, (353), 44 states have call successors, (44), 4 states have call predecessors, (44), 4 states have return successors, (44), 42 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-22 12:54:45,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 441 transitions. [2024-11-22 12:54:45,574 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 441 transitions. Word has length 137 [2024-11-22 12:54:45,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:54:45,575 INFO L471 AbstractCegarLoop]: Abstraction has 317 states and 441 transitions. [2024-11-22 12:54:45,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.0) internal successors, (50), 10 states have internal predecessors, (50), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-22 12:54:45,576 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 441 transitions. [2024-11-22 12:54:45,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-22 12:54:45,581 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:54:45,581 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:54:45,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 12:54:45,582 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:54:45,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:54:45,582 INFO L85 PathProgramCache]: Analyzing trace with hash 1144659733, now seen corresponding path program 1 times [2024-11-22 12:54:45,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:54:45,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427962503] [2024-11-22 12:54:45,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:54:45,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:54:45,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:54:46,556 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-22 12:54:46,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:54:46,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427962503] [2024-11-22 12:54:46,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427962503] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:54:46,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:54:46,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-22 12:54:46,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755417172] [2024-11-22 12:54:46,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:54:46,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-22 12:54:46,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:54:46,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-22 12:54:46,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2024-11-22 12:54:46,559 INFO L87 Difference]: Start difference. First operand 317 states and 441 transitions. Second operand has 15 states, 13 states have (on average 4.0) internal successors, (52), 14 states have internal predecessors, (52), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-22 12:54:47,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:54:47,079 INFO L93 Difference]: Finished difference Result 625 states and 870 transitions. [2024-11-22 12:54:47,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-22 12:54:47,080 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 4.0) internal successors, (52), 14 states have internal predecessors, (52), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 5 states have call successors, (18) Word has length 139 [2024-11-22 12:54:47,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:54:47,084 INFO L225 Difference]: With dead ends: 625 [2024-11-22 12:54:47,085 INFO L226 Difference]: Without dead ends: 311 [2024-11-22 12:54:47,088 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=120, Invalid=432, Unknown=0, NotChecked=0, Total=552 [2024-11-22 12:54:47,089 INFO L432 NwaCegarLoop]: 108 mSDtfsCounter, 236 mSDsluCounter, 459 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 12:54:47,090 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 567 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 426 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 12:54:47,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2024-11-22 12:54:47,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 307. [2024-11-22 12:54:47,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 258 states have (on average 1.313953488372093) internal successors, (339), 260 states have internal predecessors, (339), 44 states have call successors, (44), 4 states have call predecessors, (44), 4 states have return successors, (44), 42 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-22 12:54:47,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 427 transitions. [2024-11-22 12:54:47,124 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 427 transitions. Word has length 139 [2024-11-22 12:54:47,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:54:47,125 INFO L471 AbstractCegarLoop]: Abstraction has 307 states and 427 transitions. [2024-11-22 12:54:47,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 4.0) internal successors, (52), 14 states have internal predecessors, (52), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-22 12:54:47,125 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 427 transitions. [2024-11-22 12:54:47,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-22 12:54:47,127 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:54:47,127 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:54:47,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 12:54:47,128 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:54:47,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:54:47,129 INFO L85 PathProgramCache]: Analyzing trace with hash 982324889, now seen corresponding path program 1 times [2024-11-22 12:54:47,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:54:47,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35547330] [2024-11-22 12:54:47,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:54:47,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:54:47,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:54:47,327 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-11-22 12:54:47,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:54:47,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35547330] [2024-11-22 12:54:47,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35547330] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 12:54:47,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [349941726] [2024-11-22 12:54:47,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:54:47,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 12:54:47,329 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 12:54:47,333 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 12:54:47,334 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 12:54:47,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:54:47,477 INFO L255 TraceCheckSpWp]: Trace formula consists of 524 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-22 12:54:47,480 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 12:54:47,508 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-22 12:54:47,509 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 12:54:47,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [349941726] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:54:47,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 12:54:47,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 8 [2024-11-22 12:54:47,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585385924] [2024-11-22 12:54:47,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:54:47,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 12:54:47,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:54:47,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 12:54:47,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-22 12:54:47,514 INFO L87 Difference]: Start difference. First operand 307 states and 427 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-22 12:54:47,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:54:47,553 INFO L93 Difference]: Finished difference Result 623 states and 867 transitions. [2024-11-22 12:54:47,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 12:54:47,553 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 139 [2024-11-22 12:54:47,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:54:47,556 INFO L225 Difference]: With dead ends: 623 [2024-11-22 12:54:47,556 INFO L226 Difference]: Without dead ends: 319 [2024-11-22 12:54:47,557 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-22 12:54:47,558 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 0 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 500 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 12:54:47,558 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 500 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 12:54:47,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2024-11-22 12:54:47,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 319. [2024-11-22 12:54:47,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 270 states have (on average 1.3) internal successors, (351), 272 states have internal predecessors, (351), 44 states have call successors, (44), 4 states have call predecessors, (44), 4 states have return successors, (44), 42 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-22 12:54:47,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 439 transitions. [2024-11-22 12:54:47,582 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 439 transitions. Word has length 139 [2024-11-22 12:54:47,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:54:47,583 INFO L471 AbstractCegarLoop]: Abstraction has 319 states and 439 transitions. [2024-11-22 12:54:47,583 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-22 12:54:47,584 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 439 transitions. [2024-11-22 12:54:47,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-22 12:54:47,586 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:54:47,586 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:54:47,594 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-22 12:54:47,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 12:54:47,791 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:54:47,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:54:47,791 INFO L85 PathProgramCache]: Analyzing trace with hash -932708075, now seen corresponding path program 1 times [2024-11-22 12:54:47,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:54:47,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453390581] [2024-11-22 12:54:47,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:54:47,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:54:47,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:54:48,155 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-22 12:54:48,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:54:48,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453390581] [2024-11-22 12:54:48,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453390581] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:54:48,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:54:48,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-22 12:54:48,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175650400] [2024-11-22 12:54:48,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:54:48,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 12:54:48,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:54:48,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 12:54:48,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-22 12:54:48,158 INFO L87 Difference]: Start difference. First operand 319 states and 439 transitions. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-22 12:54:48,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:54:48,377 INFO L93 Difference]: Finished difference Result 690 states and 950 transitions. [2024-11-22 12:54:48,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 12:54:48,377 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 139 [2024-11-22 12:54:48,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:54:48,380 INFO L225 Difference]: With dead ends: 690 [2024-11-22 12:54:48,380 INFO L226 Difference]: Without dead ends: 374 [2024-11-22 12:54:48,380 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-11-22 12:54:48,381 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 66 mSDsluCounter, 700 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 869 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 12:54:48,381 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 869 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 12:54:48,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2024-11-22 12:54:48,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 334. [2024-11-22 12:54:48,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 285 states have (on average 1.3087719298245615) internal successors, (373), 287 states have internal predecessors, (373), 44 states have call successors, (44), 4 states have call predecessors, (44), 4 states have return successors, (44), 42 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-22 12:54:48,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 461 transitions. [2024-11-22 12:54:48,400 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 461 transitions. Word has length 139 [2024-11-22 12:54:48,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:54:48,401 INFO L471 AbstractCegarLoop]: Abstraction has 334 states and 461 transitions. [2024-11-22 12:54:48,401 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-22 12:54:48,401 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 461 transitions. [2024-11-22 12:54:48,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-22 12:54:48,402 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:54:48,402 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:54:48,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 12:54:48,402 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:54:48,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:54:48,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1228664258, now seen corresponding path program 1 times [2024-11-22 12:54:48,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:54:48,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694860461] [2024-11-22 12:54:48,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:54:48,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:54:48,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:54:48,975 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-22 12:54:48,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:54:48,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694860461] [2024-11-22 12:54:48,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694860461] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:54:48,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:54:48,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-22 12:54:48,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466854541] [2024-11-22 12:54:48,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:54:48,976 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 12:54:48,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:54:48,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 12:54:48,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-22 12:54:48,977 INFO L87 Difference]: Start difference. First operand 334 states and 461 transitions. Second operand has 9 states, 8 states have (on average 6.75) internal successors, (54), 9 states have internal predecessors, (54), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-22 12:54:49,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:54:49,379 INFO L93 Difference]: Finished difference Result 956 states and 1307 transitions. [2024-11-22 12:54:49,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-22 12:54:49,380 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.75) internal successors, (54), 9 states have internal predecessors, (54), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 141 [2024-11-22 12:54:49,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:54:49,382 INFO L225 Difference]: With dead ends: 956 [2024-11-22 12:54:49,383 INFO L226 Difference]: Without dead ends: 625 [2024-11-22 12:54:49,383 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272 [2024-11-22 12:54:49,384 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 377 mSDsluCounter, 583 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 377 SdHoareTripleChecker+Valid, 700 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 12:54:49,384 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [377 Valid, 700 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 12:54:49,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 625 states. [2024-11-22 12:54:49,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 625 to 602. [2024-11-22 12:54:49,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 602 states, 499 states have (on average 1.280561122244489) internal successors, (639), 504 states have internal predecessors, (639), 92 states have call successors, (92), 10 states have call predecessors, (92), 10 states have return successors, (92), 87 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-22 12:54:49,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 823 transitions. [2024-11-22 12:54:49,445 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 823 transitions. Word has length 141 [2024-11-22 12:54:49,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:54:49,445 INFO L471 AbstractCegarLoop]: Abstraction has 602 states and 823 transitions. [2024-11-22 12:54:49,445 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.75) internal successors, (54), 9 states have internal predecessors, (54), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-22 12:54:49,445 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 823 transitions. [2024-11-22 12:54:49,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-22 12:54:49,446 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:54:49,446 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:54:49,448 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 12:54:49,448 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:54:49,448 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:54:49,448 INFO L85 PathProgramCache]: Analyzing trace with hash -1911355907, now seen corresponding path program 1 times [2024-11-22 12:54:49,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:54:49,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805224983] [2024-11-22 12:54:49,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:54:49,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:54:49,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:54:50,912 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-22 12:54:50,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:54:50,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805224983] [2024-11-22 12:54:50,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805224983] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:54:50,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:54:50,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2024-11-22 12:54:50,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89411304] [2024-11-22 12:54:50,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:54:50,914 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-22 12:54:50,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:54:50,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-22 12:54:50,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=398, Unknown=0, NotChecked=0, Total=462 [2024-11-22 12:54:50,915 INFO L87 Difference]: Start difference. First operand 602 states and 823 transitions. Second operand has 22 states, 20 states have (on average 2.7) internal successors, (54), 22 states have internal predecessors, (54), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-22 12:54:52,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:54:52,342 INFO L93 Difference]: Finished difference Result 668 states and 890 transitions. [2024-11-22 12:54:52,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-22 12:54:52,343 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 20 states have (on average 2.7) internal successors, (54), 22 states have internal predecessors, (54), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 5 states have call successors, (18) Word has length 141 [2024-11-22 12:54:52,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:54:52,347 INFO L225 Difference]: With dead ends: 668 [2024-11-22 12:54:52,347 INFO L226 Difference]: Without dead ends: 666 [2024-11-22 12:54:52,348 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 302 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=291, Invalid=1431, Unknown=0, NotChecked=0, Total=1722 [2024-11-22 12:54:52,349 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 719 mSDsluCounter, 1402 mSDsCounter, 0 mSdLazyCounter, 1129 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 719 SdHoareTripleChecker+Valid, 1513 SdHoareTripleChecker+Invalid, 1196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 1129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-22 12:54:52,349 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [719 Valid, 1513 Invalid, 1196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 1129 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-22 12:54:52,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2024-11-22 12:54:52,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 627. [2024-11-22 12:54:52,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 627 states, 522 states have (on average 1.2701149425287357) internal successors, (663), 527 states have internal predecessors, (663), 92 states have call successors, (92), 12 states have call predecessors, (92), 12 states have return successors, (92), 87 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-22 12:54:52,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 627 states to 627 states and 847 transitions. [2024-11-22 12:54:52,391 INFO L78 Accepts]: Start accepts. Automaton has 627 states and 847 transitions. Word has length 141 [2024-11-22 12:54:52,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:54:52,392 INFO L471 AbstractCegarLoop]: Abstraction has 627 states and 847 transitions. [2024-11-22 12:54:52,392 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 20 states have (on average 2.7) internal successors, (54), 22 states have internal predecessors, (54), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-22 12:54:52,392 INFO L276 IsEmpty]: Start isEmpty. Operand 627 states and 847 transitions. [2024-11-22 12:54:52,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-22 12:54:52,393 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:54:52,393 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:54:52,393 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 12:54:52,393 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:54:52,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:54:52,394 INFO L85 PathProgramCache]: Analyzing trace with hash -1250866724, now seen corresponding path program 1 times [2024-11-22 12:54:52,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:54:52,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981319794] [2024-11-22 12:54:52,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:54:52,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:54:52,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:54:52,920 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-22 12:54:52,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:54:52,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981319794] [2024-11-22 12:54:52,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981319794] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:54:52,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:54:52,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-22 12:54:52,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405314889] [2024-11-22 12:54:52,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:54:52,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-22 12:54:52,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:54:52,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-22 12:54:52,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-11-22 12:54:52,923 INFO L87 Difference]: Start difference. First operand 627 states and 847 transitions. Second operand has 13 states, 13 states have (on average 4.153846153846154) internal successors, (54), 13 states have internal predecessors, (54), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-22 12:54:53,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:54:53,235 INFO L93 Difference]: Finished difference Result 1289 states and 1738 transitions. [2024-11-22 12:54:53,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-22 12:54:53,236 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.153846153846154) internal successors, (54), 13 states have internal predecessors, (54), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 141 [2024-11-22 12:54:53,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:54:53,238 INFO L225 Difference]: With dead ends: 1289 [2024-11-22 12:54:53,238 INFO L226 Difference]: Without dead ends: 665 [2024-11-22 12:54:53,239 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2024-11-22 12:54:53,240 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 58 mSDsluCounter, 1338 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 1504 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 12:54:53,240 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 1504 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 12:54:53,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2024-11-22 12:54:53,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 630. [2024-11-22 12:54:53,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 630 states, 525 states have (on average 1.2666666666666666) internal successors, (665), 530 states have internal predecessors, (665), 92 states have call successors, (92), 12 states have call predecessors, (92), 12 states have return successors, (92), 87 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-22 12:54:53,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 630 states to 630 states and 849 transitions. [2024-11-22 12:54:53,277 INFO L78 Accepts]: Start accepts. Automaton has 630 states and 849 transitions. Word has length 141 [2024-11-22 12:54:53,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:54:53,278 INFO L471 AbstractCegarLoop]: Abstraction has 630 states and 849 transitions. [2024-11-22 12:54:53,278 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.153846153846154) internal successors, (54), 13 states have internal predecessors, (54), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-22 12:54:53,278 INFO L276 IsEmpty]: Start isEmpty. Operand 630 states and 849 transitions. [2024-11-22 12:54:53,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-22 12:54:53,279 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:54:53,279 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:54:53,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 12:54:53,279 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:54:53,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:54:53,280 INFO L85 PathProgramCache]: Analyzing trace with hash 1307651178, now seen corresponding path program 1 times [2024-11-22 12:54:53,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:54:53,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877783114] [2024-11-22 12:54:53,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:54:53,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:54:53,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:54:53,677 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-22 12:54:53,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:54:53,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877783114] [2024-11-22 12:54:53,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877783114] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:54:53,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:54:53,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 12:54:53,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602265146] [2024-11-22 12:54:53,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:54:53,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 12:54:53,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:54:53,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 12:54:53,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 12:54:53,679 INFO L87 Difference]: Start difference. First operand 630 states and 849 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-22 12:54:53,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:54:53,819 INFO L93 Difference]: Finished difference Result 1205 states and 1635 transitions. [2024-11-22 12:54:53,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 12:54:53,819 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 142 [2024-11-22 12:54:53,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:54:53,825 INFO L225 Difference]: With dead ends: 1205 [2024-11-22 12:54:53,825 INFO L226 Difference]: Without dead ends: 850 [2024-11-22 12:54:53,826 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 12:54:53,827 INFO L432 NwaCegarLoop]: 188 mSDtfsCounter, 74 mSDsluCounter, 830 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 1018 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 12:54:53,827 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 1018 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 12:54:53,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 850 states. [2024-11-22 12:54:53,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 850 to 837. [2024-11-22 12:54:53,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 837 states, 709 states have (on average 1.2806770098730607) internal successors, (908), 717 states have internal predecessors, (908), 112 states have call successors, (112), 15 states have call predecessors, (112), 15 states have return successors, (112), 104 states have call predecessors, (112), 112 states have call successors, (112) [2024-11-22 12:54:53,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 837 states to 837 states and 1132 transitions. [2024-11-22 12:54:53,882 INFO L78 Accepts]: Start accepts. Automaton has 837 states and 1132 transitions. Word has length 142 [2024-11-22 12:54:53,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:54:53,882 INFO L471 AbstractCegarLoop]: Abstraction has 837 states and 1132 transitions. [2024-11-22 12:54:53,882 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-22 12:54:53,882 INFO L276 IsEmpty]: Start isEmpty. Operand 837 states and 1132 transitions. [2024-11-22 12:54:53,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-22 12:54:53,884 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:54:53,884 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:54:53,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 12:54:53,884 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:54:53,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:54:53,885 INFO L85 PathProgramCache]: Analyzing trace with hash 624959529, now seen corresponding path program 1 times [2024-11-22 12:54:53,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:54:53,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711949239] [2024-11-22 12:54:53,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:54:53,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:54:53,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:54:54,449 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-22 12:54:54,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:54:54,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711949239] [2024-11-22 12:54:54,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711949239] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:54:54,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:54:54,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-22 12:54:54,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81690143] [2024-11-22 12:54:54,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:54:54,450 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 12:54:54,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:54:54,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 12:54:54,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-22 12:54:54,451 INFO L87 Difference]: Start difference. First operand 837 states and 1132 transitions. Second operand has 9 states, 8 states have (on average 6.875) internal successors, (55), 9 states have internal predecessors, (55), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-22 12:54:54,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:54:54,938 INFO L93 Difference]: Finished difference Result 1697 states and 2284 transitions. [2024-11-22 12:54:54,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-22 12:54:54,938 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.875) internal successors, (55), 9 states have internal predecessors, (55), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 142 [2024-11-22 12:54:54,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:54:54,942 INFO L225 Difference]: With dead ends: 1697 [2024-11-22 12:54:54,942 INFO L226 Difference]: Without dead ends: 863 [2024-11-22 12:54:54,944 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2024-11-22 12:54:54,945 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 350 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 876 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 12:54:54,945 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [350 Valid, 876 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 12:54:54,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 863 states. [2024-11-22 12:54:54,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 863 to 747. [2024-11-22 12:54:54,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 747 states, 637 states have (on average 1.2794348508634223) internal successors, (815), 642 states have internal predecessors, (815), 96 states have call successors, (96), 13 states have call predecessors, (96), 13 states have return successors, (96), 91 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-22 12:54:54,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 747 states to 747 states and 1007 transitions. [2024-11-22 12:54:54,985 INFO L78 Accepts]: Start accepts. Automaton has 747 states and 1007 transitions. Word has length 142 [2024-11-22 12:54:54,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:54:54,986 INFO L471 AbstractCegarLoop]: Abstraction has 747 states and 1007 transitions. [2024-11-22 12:54:54,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.875) internal successors, (55), 9 states have internal predecessors, (55), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-22 12:54:54,986 INFO L276 IsEmpty]: Start isEmpty. Operand 747 states and 1007 transitions. [2024-11-22 12:54:54,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-22 12:54:54,988 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:54:54,988 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:54:54,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 12:54:54,989 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:54:54,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:54:54,989 INFO L85 PathProgramCache]: Analyzing trace with hash 2031090635, now seen corresponding path program 1 times [2024-11-22 12:54:54,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:54:54,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510880018] [2024-11-22 12:54:54,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:54:54,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:54:55,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:54:56,308 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-22 12:54:56,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:54:56,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510880018] [2024-11-22 12:54:56,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510880018] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:54:56,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:54:56,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-22 12:54:56,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840155148] [2024-11-22 12:54:56,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:54:56,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-22 12:54:56,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:54:56,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-22 12:54:56,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2024-11-22 12:54:56,312 INFO L87 Difference]: Start difference. First operand 747 states and 1007 transitions. Second operand has 17 states, 17 states have (on average 3.2941176470588234) internal successors, (56), 17 states have internal predecessors, (56), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-22 12:55:02,394 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-22 12:55:06,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:55:06,388 INFO L93 Difference]: Finished difference Result 1541 states and 2067 transitions. [2024-11-22 12:55:06,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-22 12:55:06,389 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.2941176470588234) internal successors, (56), 17 states have internal predecessors, (56), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 143 [2024-11-22 12:55:06,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:55:06,392 INFO L225 Difference]: With dead ends: 1541 [2024-11-22 12:55:06,392 INFO L226 Difference]: Without dead ends: 797 [2024-11-22 12:55:06,393 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=115, Invalid=485, Unknown=0, NotChecked=0, Total=600 [2024-11-22 12:55:06,394 INFO L432 NwaCegarLoop]: 136 mSDtfsCounter, 322 mSDsluCounter, 1112 mSDsCounter, 0 mSdLazyCounter, 1106 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 322 SdHoareTripleChecker+Valid, 1248 SdHoareTripleChecker+Invalid, 1108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1106 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2024-11-22 12:55:06,394 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [322 Valid, 1248 Invalid, 1108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1106 Invalid, 1 Unknown, 0 Unchecked, 6.8s Time] [2024-11-22 12:55:06,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 797 states. [2024-11-22 12:55:06,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 797 to 760. [2024-11-22 12:55:06,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 760 states, 650 states have (on average 1.2738461538461539) internal successors, (828), 655 states have internal predecessors, (828), 96 states have call successors, (96), 13 states have call predecessors, (96), 13 states have return successors, (96), 91 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-22 12:55:06,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 760 states to 760 states and 1020 transitions. [2024-11-22 12:55:06,464 INFO L78 Accepts]: Start accepts. Automaton has 760 states and 1020 transitions. Word has length 143 [2024-11-22 12:55:06,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:55:06,465 INFO L471 AbstractCegarLoop]: Abstraction has 760 states and 1020 transitions. [2024-11-22 12:55:06,465 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.2941176470588234) internal successors, (56), 17 states have internal predecessors, (56), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-22 12:55:06,465 INFO L276 IsEmpty]: Start isEmpty. Operand 760 states and 1020 transitions. [2024-11-22 12:55:06,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-22 12:55:06,466 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:55:06,466 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:55:06,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 12:55:06,467 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:55:06,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:55:06,467 INFO L85 PathProgramCache]: Analyzing trace with hash -1120267628, now seen corresponding path program 1 times [2024-11-22 12:55:06,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:55:06,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724209963] [2024-11-22 12:55:06,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:55:06,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:55:06,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:55:06,655 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-22 12:55:06,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:55:06,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724209963] [2024-11-22 12:55:06,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724209963] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:55:06,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:55:06,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 12:55:06,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405409827] [2024-11-22 12:55:06,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:55:06,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 12:55:06,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:55:06,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 12:55:06,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 12:55:06,658 INFO L87 Difference]: Start difference. First operand 760 states and 1020 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-22 12:55:06,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:55:06,770 INFO L93 Difference]: Finished difference Result 1784 states and 2388 transitions. [2024-11-22 12:55:06,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 12:55:06,771 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 143 [2024-11-22 12:55:06,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:55:06,775 INFO L225 Difference]: With dead ends: 1784 [2024-11-22 12:55:06,775 INFO L226 Difference]: Without dead ends: 1027 [2024-11-22 12:55:06,777 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 12:55:06,778 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 79 mSDsluCounter, 435 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 612 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 12:55:06,778 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 612 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 12:55:06,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1027 states. [2024-11-22 12:55:06,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1027 to 1021. [2024-11-22 12:55:06,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1021 states, 858 states have (on average 1.25990675990676) internal successors, (1081), 868 states have internal predecessors, (1081), 140 states have call successors, (140), 22 states have call predecessors, (140), 22 states have return successors, (140), 130 states have call predecessors, (140), 140 states have call successors, (140) [2024-11-22 12:55:06,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1021 states to 1021 states and 1361 transitions. [2024-11-22 12:55:06,829 INFO L78 Accepts]: Start accepts. Automaton has 1021 states and 1361 transitions. Word has length 143 [2024-11-22 12:55:06,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:55:06,829 INFO L471 AbstractCegarLoop]: Abstraction has 1021 states and 1361 transitions. [2024-11-22 12:55:06,829 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-22 12:55:06,829 INFO L276 IsEmpty]: Start isEmpty. Operand 1021 states and 1361 transitions. [2024-11-22 12:55:06,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-22 12:55:06,830 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:55:06,830 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:55:06,830 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 12:55:06,830 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:55:06,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:55:06,830 INFO L85 PathProgramCache]: Analyzing trace with hash -170183969, now seen corresponding path program 1 times [2024-11-22 12:55:06,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:55:06,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718241426] [2024-11-22 12:55:06,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:55:06,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:55:06,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:55:08,637 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-22 12:55:08,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:55:08,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718241426] [2024-11-22 12:55:08,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718241426] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:55:08,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:55:08,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2024-11-22 12:55:08,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037775391] [2024-11-22 12:55:08,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:55:08,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-22 12:55:08,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:55:08,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-22 12:55:08,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=551, Unknown=0, NotChecked=0, Total=650 [2024-11-22 12:55:08,639 INFO L87 Difference]: Start difference. First operand 1021 states and 1361 transitions. Second operand has 26 states, 23 states have (on average 2.4782608695652173) internal successors, (57), 24 states have internal predecessors, (57), 7 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 6 states have call predecessors, (18), 7 states have call successors, (18) [2024-11-22 12:55:10,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:55:10,754 INFO L93 Difference]: Finished difference Result 2062 states and 2742 transitions. [2024-11-22 12:55:10,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-22 12:55:10,755 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 23 states have (on average 2.4782608695652173) internal successors, (57), 24 states have internal predecessors, (57), 7 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 6 states have call predecessors, (18), 7 states have call successors, (18) Word has length 144 [2024-11-22 12:55:10,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:55:10,760 INFO L225 Difference]: With dead ends: 2062 [2024-11-22 12:55:10,760 INFO L226 Difference]: Without dead ends: 1044 [2024-11-22 12:55:10,763 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 294 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=306, Invalid=1416, Unknown=0, NotChecked=0, Total=1722 [2024-11-22 12:55:10,763 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 369 mSDsluCounter, 1623 mSDsCounter, 0 mSdLazyCounter, 1444 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 1741 SdHoareTripleChecker+Invalid, 1454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-22 12:55:10,763 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [369 Valid, 1741 Invalid, 1454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1444 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-22 12:55:10,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1044 states. [2024-11-22 12:55:10,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1044 to 1008. [2024-11-22 12:55:10,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1008 states, 845 states have (on average 1.2627218934911242) internal successors, (1067), 855 states have internal predecessors, (1067), 140 states have call successors, (140), 22 states have call predecessors, (140), 22 states have return successors, (140), 130 states have call predecessors, (140), 140 states have call successors, (140) [2024-11-22 12:55:10,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1008 states to 1008 states and 1347 transitions. [2024-11-22 12:55:10,818 INFO L78 Accepts]: Start accepts. Automaton has 1008 states and 1347 transitions. Word has length 144 [2024-11-22 12:55:10,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:55:10,818 INFO L471 AbstractCegarLoop]: Abstraction has 1008 states and 1347 transitions. [2024-11-22 12:55:10,818 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 23 states have (on average 2.4782608695652173) internal successors, (57), 24 states have internal predecessors, (57), 7 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 6 states have call predecessors, (18), 7 states have call successors, (18) [2024-11-22 12:55:10,818 INFO L276 IsEmpty]: Start isEmpty. Operand 1008 states and 1347 transitions. [2024-11-22 12:55:10,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-22 12:55:10,820 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:55:10,820 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:55:10,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-22 12:55:10,820 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:55:10,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:55:10,820 INFO L85 PathProgramCache]: Analyzing trace with hash 1489562510, now seen corresponding path program 1 times [2024-11-22 12:55:10,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:55:10,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8871571] [2024-11-22 12:55:10,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:55:10,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:55:10,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:55:11,232 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-22 12:55:11,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:55:11,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8871571] [2024-11-22 12:55:11,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8871571] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:55:11,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:55:11,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-22 12:55:11,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682357348] [2024-11-22 12:55:11,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:55:11,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 12:55:11,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:55:11,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 12:55:11,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-22 12:55:11,234 INFO L87 Difference]: Start difference. First operand 1008 states and 1347 transitions. Second operand has 9 states, 8 states have (on average 7.125) internal successors, (57), 9 states have internal predecessors, (57), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-22 12:55:11,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:55:11,557 INFO L93 Difference]: Finished difference Result 1720 states and 2243 transitions. [2024-11-22 12:55:11,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 12:55:11,558 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.125) internal successors, (57), 9 states have internal predecessors, (57), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 144 [2024-11-22 12:55:11,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:55:11,563 INFO L225 Difference]: With dead ends: 1720 [2024-11-22 12:55:11,563 INFO L226 Difference]: Without dead ends: 1718 [2024-11-22 12:55:11,565 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2024-11-22 12:55:11,565 INFO L432 NwaCegarLoop]: 137 mSDtfsCounter, 205 mSDsluCounter, 706 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 843 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 12:55:11,566 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 843 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 12:55:11,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1718 states. [2024-11-22 12:55:11,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1718 to 1478. [2024-11-22 12:55:11,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1478 states, 1280 states have (on average 1.24140625) internal successors, (1589), 1295 states have internal predecessors, (1589), 170 states have call successors, (170), 27 states have call predecessors, (170), 27 states have return successors, (170), 155 states have call predecessors, (170), 170 states have call successors, (170) [2024-11-22 12:55:11,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1478 states to 1478 states and 1929 transitions. [2024-11-22 12:55:11,632 INFO L78 Accepts]: Start accepts. Automaton has 1478 states and 1929 transitions. Word has length 144 [2024-11-22 12:55:11,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:55:11,632 INFO L471 AbstractCegarLoop]: Abstraction has 1478 states and 1929 transitions. [2024-11-22 12:55:11,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.125) internal successors, (57), 9 states have internal predecessors, (57), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-22 12:55:11,633 INFO L276 IsEmpty]: Start isEmpty. Operand 1478 states and 1929 transitions. [2024-11-22 12:55:11,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-22 12:55:11,634 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:55:11,634 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:55:11,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-22 12:55:11,635 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:55:11,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:55:11,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1427935694, now seen corresponding path program 1 times [2024-11-22 12:55:11,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:55:11,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742045024] [2024-11-22 12:55:11,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:55:11,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:55:11,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:55:11,778 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-11-22 12:55:11,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:55:11,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742045024] [2024-11-22 12:55:11,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742045024] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 12:55:11,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [975187378] [2024-11-22 12:55:11,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:55:11,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 12:55:11,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 12:55:11,781 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 12:55:11,782 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 12:55:11,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:55:11,928 INFO L255 TraceCheckSpWp]: Trace formula consists of 543 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-22 12:55:11,931 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 12:55:11,974 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-22 12:55:11,974 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 12:55:11,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [975187378] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:55:11,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 12:55:11,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 12 [2024-11-22 12:55:11,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27157227] [2024-11-22 12:55:11,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:55:11,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 12:55:11,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:55:11,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 12:55:11,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-22 12:55:11,975 INFO L87 Difference]: Start difference. First operand 1478 states and 1929 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, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-22 12:55:12,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:55:12,061 INFO L93 Difference]: Finished difference Result 3059 states and 3981 transitions. [2024-11-22 12:55:12,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 12:55:12,062 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, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 144 [2024-11-22 12:55:12,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:55:12,067 INFO L225 Difference]: With dead ends: 3059 [2024-11-22 12:55:12,067 INFO L226 Difference]: Without dead ends: 1584 [2024-11-22 12:55:12,070 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-22 12:55:12,070 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 0 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 742 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 12:55:12,071 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 742 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 12:55:12,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1584 states. [2024-11-22 12:55:12,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1584 to 1530. [2024-11-22 12:55:12,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1530 states, 1332 states have (on average 1.231981981981982) internal successors, (1641), 1347 states have internal predecessors, (1641), 170 states have call successors, (170), 27 states have call predecessors, (170), 27 states have return successors, (170), 155 states have call predecessors, (170), 170 states have call successors, (170) [2024-11-22 12:55:12,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1530 states to 1530 states and 1981 transitions. [2024-11-22 12:55:12,135 INFO L78 Accepts]: Start accepts. Automaton has 1530 states and 1981 transitions. Word has length 144 [2024-11-22 12:55:12,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:55:12,135 INFO L471 AbstractCegarLoop]: Abstraction has 1530 states and 1981 transitions. [2024-11-22 12:55:12,135 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, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-22 12:55:12,135 INFO L276 IsEmpty]: Start isEmpty. Operand 1530 states and 1981 transitions. [2024-11-22 12:55:12,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-22 12:55:12,136 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:55:12,137 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:55:12,144 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 12:55:12,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 12:55:12,337 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:55:12,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:55:12,338 INFO L85 PathProgramCache]: Analyzing trace with hash 1820962704, now seen corresponding path program 1 times [2024-11-22 12:55:12,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:55:12,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513479122] [2024-11-22 12:55:12,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:55:12,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:55:12,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:55:12,454 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-22 12:55:12,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:55:12,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513479122] [2024-11-22 12:55:12,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513479122] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:55:12,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:55:12,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 12:55:12,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199607937] [2024-11-22 12:55:12,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:55:12,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 12:55:12,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:55:12,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 12:55:12,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 12:55:12,455 INFO L87 Difference]: Start difference. First operand 1530 states and 1981 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, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-22 12:55:12,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:55:12,581 INFO L93 Difference]: Finished difference Result 2523 states and 3274 transitions. [2024-11-22 12:55:12,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 12:55:12,582 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, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 144 [2024-11-22 12:55:12,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:55:12,587 INFO L225 Difference]: With dead ends: 2523 [2024-11-22 12:55:12,587 INFO L226 Difference]: Without dead ends: 1516 [2024-11-22 12:55:12,589 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 12:55:12,589 INFO L432 NwaCegarLoop]: 206 mSDtfsCounter, 73 mSDsluCounter, 499 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 705 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 12:55:12,590 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 705 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 12:55:12,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1516 states. [2024-11-22 12:55:12,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1516 to 1512. [2024-11-22 12:55:12,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1308 states have (on average 1.2255351681957187) internal successors, (1603), 1323 states have internal predecessors, (1603), 174 states have call successors, (174), 29 states have call predecessors, (174), 29 states have return successors, (174), 159 states have call predecessors, (174), 174 states have call successors, (174) [2024-11-22 12:55:12,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 1951 transitions. [2024-11-22 12:55:12,671 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 1951 transitions. Word has length 144 [2024-11-22 12:55:12,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:55:12,671 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 1951 transitions. [2024-11-22 12:55:12,671 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, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-22 12:55:12,671 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 1951 transitions. [2024-11-22 12:55:12,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-22 12:55:12,673 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:55:12,673 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:55:12,673 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-22 12:55:12,673 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:55:12,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:55:12,673 INFO L85 PathProgramCache]: Analyzing trace with hash 771515590, now seen corresponding path program 1 times [2024-11-22 12:55:12,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:55:12,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255261526] [2024-11-22 12:55:12,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:55:12,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:55:12,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:55:13,274 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-22 12:55:13,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:55:13,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255261526] [2024-11-22 12:55:13,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255261526] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:55:13,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:55:13,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-22 12:55:13,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917137977] [2024-11-22 12:55:13,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:55:13,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-22 12:55:13,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:55:13,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-22 12:55:13,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2024-11-22 12:55:13,276 INFO L87 Difference]: Start difference. First operand 1512 states and 1951 transitions. Second operand has 15 states, 14 states have (on average 4.142857142857143) internal successors, (58), 15 states have internal predecessors, (58), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-22 12:55:14,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:55:14,085 INFO L93 Difference]: Finished difference Result 3053 states and 3927 transitions. [2024-11-22 12:55:14,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-22 12:55:14,085 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.142857142857143) internal successors, (58), 15 states have internal predecessors, (58), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 145 [2024-11-22 12:55:14,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:55:14,092 INFO L225 Difference]: With dead ends: 3053 [2024-11-22 12:55:14,092 INFO L226 Difference]: Without dead ends: 1544 [2024-11-22 12:55:14,095 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=148, Invalid=722, Unknown=0, NotChecked=0, Total=870 [2024-11-22 12:55:14,095 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 615 mSDsluCounter, 829 mSDsCounter, 0 mSdLazyCounter, 646 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 615 SdHoareTripleChecker+Valid, 943 SdHoareTripleChecker+Invalid, 712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 646 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 12:55:14,095 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [615 Valid, 943 Invalid, 712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 646 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 12:55:14,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1544 states. [2024-11-22 12:55:14,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1544 to 1524. [2024-11-22 12:55:14,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1524 states, 1317 states have (on average 1.222475322703113) internal successors, (1610), 1332 states have internal predecessors, (1610), 174 states have call successors, (174), 32 states have call predecessors, (174), 32 states have return successors, (174), 159 states have call predecessors, (174), 174 states have call successors, (174) [2024-11-22 12:55:14,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1524 states to 1524 states and 1958 transitions. [2024-11-22 12:55:14,163 INFO L78 Accepts]: Start accepts. Automaton has 1524 states and 1958 transitions. Word has length 145 [2024-11-22 12:55:14,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:55:14,163 INFO L471 AbstractCegarLoop]: Abstraction has 1524 states and 1958 transitions. [2024-11-22 12:55:14,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.142857142857143) internal successors, (58), 15 states have internal predecessors, (58), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-22 12:55:14,164 INFO L276 IsEmpty]: Start isEmpty. Operand 1524 states and 1958 transitions. [2024-11-22 12:55:14,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-22 12:55:14,164 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:55:14,165 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:55:14,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-22 12:55:14,165 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:55:14,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:55:14,165 INFO L85 PathProgramCache]: Analyzing trace with hash 758231866, now seen corresponding path program 1 times [2024-11-22 12:55:14,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:55:14,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973128450] [2024-11-22 12:55:14,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:55:14,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:55:14,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:55:14,528 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-22 12:55:14,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:55:14,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973128450] [2024-11-22 12:55:14,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973128450] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:55:14,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:55:14,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-22 12:55:14,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245193447] [2024-11-22 12:55:14,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:55:14,529 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 12:55:14,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:55:14,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 12:55:14,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-22 12:55:14,530 INFO L87 Difference]: Start difference. First operand 1524 states and 1958 transitions. Second operand has 10 states, 9 states have (on average 6.444444444444445) internal successors, (58), 10 states have internal predecessors, (58), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-22 12:55:14,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:55:14,950 INFO L93 Difference]: Finished difference Result 2855 states and 3668 transitions. [2024-11-22 12:55:14,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-22 12:55:14,951 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.444444444444445) internal successors, (58), 10 states have internal predecessors, (58), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 145 [2024-11-22 12:55:14,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:55:14,957 INFO L225 Difference]: With dead ends: 2855 [2024-11-22 12:55:14,957 INFO L226 Difference]: Without dead ends: 1854 [2024-11-22 12:55:14,959 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=382, Unknown=0, NotChecked=0, Total=462 [2024-11-22 12:55:14,959 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 175 mSDsluCounter, 1045 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 1222 SdHoareTripleChecker+Invalid, 341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 12:55:14,959 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 1222 Invalid, 341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 12:55:14,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1854 states. [2024-11-22 12:55:15,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1854 to 1654. [2024-11-22 12:55:15,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1654 states, 1447 states have (on average 1.2315134761575675) internal successors, (1782), 1462 states have internal predecessors, (1782), 174 states have call successors, (174), 32 states have call predecessors, (174), 32 states have return successors, (174), 159 states have call predecessors, (174), 174 states have call successors, (174) [2024-11-22 12:55:15,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1654 states to 1654 states and 2130 transitions. [2024-11-22 12:55:15,033 INFO L78 Accepts]: Start accepts. Automaton has 1654 states and 2130 transitions. Word has length 145 [2024-11-22 12:55:15,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:55:15,033 INFO L471 AbstractCegarLoop]: Abstraction has 1654 states and 2130 transitions. [2024-11-22 12:55:15,033 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.444444444444445) internal successors, (58), 10 states have internal predecessors, (58), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-22 12:55:15,033 INFO L276 IsEmpty]: Start isEmpty. Operand 1654 states and 2130 transitions. [2024-11-22 12:55:15,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-22 12:55:15,034 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:55:15,034 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:55:15,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-22 12:55:15,035 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:55:15,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:55:15,035 INFO L85 PathProgramCache]: Analyzing trace with hash -1047206468, now seen corresponding path program 1 times [2024-11-22 12:55:15,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:55:15,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616044997] [2024-11-22 12:55:15,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:55:15,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:55:15,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:55:15,168 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-22 12:55:15,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:55:15,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616044997] [2024-11-22 12:55:15,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616044997] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:55:15,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:55:15,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 12:55:15,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348772994] [2024-11-22 12:55:15,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:55:15,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 12:55:15,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:55:15,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 12:55:15,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 12:55:15,169 INFO L87 Difference]: Start difference. First operand 1654 states and 2130 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-22 12:55:15,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:55:15,291 INFO L93 Difference]: Finished difference Result 3457 states and 4444 transitions. [2024-11-22 12:55:15,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 12:55:15,291 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 145 [2024-11-22 12:55:15,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:55:15,298 INFO L225 Difference]: With dead ends: 3457 [2024-11-22 12:55:15,298 INFO L226 Difference]: Without dead ends: 1806 [2024-11-22 12:55:15,300 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 12:55:15,301 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 82 mSDsluCounter, 439 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 617 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 12:55:15,301 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 617 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 12:55:15,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1806 states. [2024-11-22 12:55:15,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1806 to 1800. [2024-11-22 12:55:15,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1800 states, 1551 states have (on average 1.2185686653771761) internal successors, (1890), 1569 states have internal predecessors, (1890), 206 states have call successors, (206), 42 states have call predecessors, (206), 42 states have return successors, (206), 188 states have call predecessors, (206), 206 states have call successors, (206) [2024-11-22 12:55:15,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1800 states to 1800 states and 2302 transitions. [2024-11-22 12:55:15,390 INFO L78 Accepts]: Start accepts. Automaton has 1800 states and 2302 transitions. Word has length 145 [2024-11-22 12:55:15,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:55:15,391 INFO L471 AbstractCegarLoop]: Abstraction has 1800 states and 2302 transitions. [2024-11-22 12:55:15,391 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-22 12:55:15,391 INFO L276 IsEmpty]: Start isEmpty. Operand 1800 states and 2302 transitions. [2024-11-22 12:55:15,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-22 12:55:15,392 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:55:15,392 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:55:15,392 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-22 12:55:15,392 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:55:15,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:55:15,393 INFO L85 PathProgramCache]: Analyzing trace with hash -118147956, now seen corresponding path program 1 times [2024-11-22 12:55:15,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:55:15,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081580224] [2024-11-22 12:55:15,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:55:15,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:55:15,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:55:15,726 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-22 12:55:15,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:55:15,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081580224] [2024-11-22 12:55:15,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081580224] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:55:15,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:55:15,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 12:55:15,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300371769] [2024-11-22 12:55:15,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:55:15,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 12:55:15,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:55:15,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 12:55:15,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 12:55:15,728 INFO L87 Difference]: Start difference. First operand 1800 states and 2302 transitions. Second operand has 7 states, 6 states have (on average 9.666666666666666) internal successors, (58), 7 states have internal predecessors, (58), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-22 12:55:16,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:55:16,147 INFO L93 Difference]: Finished difference Result 3601 states and 4595 transitions. [2024-11-22 12:55:16,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 12:55:16,147 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.666666666666666) internal successors, (58), 7 states have internal predecessors, (58), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 145 [2024-11-22 12:55:16,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:55:16,154 INFO L225 Difference]: With dead ends: 3601 [2024-11-22 12:55:16,154 INFO L226 Difference]: Without dead ends: 1804 [2024-11-22 12:55:16,156 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-22 12:55:16,157 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 210 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 12:55:16,157 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 441 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 12:55:16,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1804 states. [2024-11-22 12:55:16,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1804 to 1684. [2024-11-22 12:55:16,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1684 states, 1463 states have (on average 1.216678058783322) internal successors, (1780), 1479 states have internal predecessors, (1780), 180 states have call successors, (180), 40 states have call predecessors, (180), 40 states have return successors, (180), 164 states have call predecessors, (180), 180 states have call successors, (180) [2024-11-22 12:55:16,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1684 states to 1684 states and 2140 transitions. [2024-11-22 12:55:16,236 INFO L78 Accepts]: Start accepts. Automaton has 1684 states and 2140 transitions. Word has length 145 [2024-11-22 12:55:16,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:55:16,237 INFO L471 AbstractCegarLoop]: Abstraction has 1684 states and 2140 transitions. [2024-11-22 12:55:16,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.666666666666666) internal successors, (58), 7 states have internal predecessors, (58), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-22 12:55:16,237 INFO L276 IsEmpty]: Start isEmpty. Operand 1684 states and 2140 transitions. [2024-11-22 12:55:16,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-22 12:55:16,238 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:55:16,238 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:55:16,238 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-22 12:55:16,238 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:55:16,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:55:16,239 INFO L85 PathProgramCache]: Analyzing trace with hash -1584624932, now seen corresponding path program 1 times [2024-11-22 12:55:16,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:55:16,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702597890] [2024-11-22 12:55:16,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:55:16,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:55:16,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:55:16,476 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-22 12:55:16,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:55:16,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702597890] [2024-11-22 12:55:16,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702597890] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:55:16,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:55:16,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 12:55:16,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790488794] [2024-11-22 12:55:16,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:55:16,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 12:55:16,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:55:16,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 12:55:16,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 12:55:16,478 INFO L87 Difference]: Start difference. First operand 1684 states and 2140 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-22 12:55:16,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:55:16,678 INFO L93 Difference]: Finished difference Result 3913 states and 4950 transitions. [2024-11-22 12:55:16,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 12:55:16,680 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 146 [2024-11-22 12:55:16,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:55:16,691 INFO L225 Difference]: With dead ends: 3913 [2024-11-22 12:55:16,691 INFO L226 Difference]: Without dead ends: 2232 [2024-11-22 12:55:16,695 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 12:55:16,696 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 33 mSDsluCounter, 479 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 623 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 12:55:16,696 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 623 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 12:55:16,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2232 states. [2024-11-22 12:55:16,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2232 to 2009. [2024-11-22 12:55:16,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2009 states, 1788 states have (on average 1.203579418344519) internal successors, (2152), 1804 states have internal predecessors, (2152), 180 states have call successors, (180), 40 states have call predecessors, (180), 40 states have return successors, (180), 164 states have call predecessors, (180), 180 states have call successors, (180) [2024-11-22 12:55:16,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2009 states to 2009 states and 2512 transitions. [2024-11-22 12:55:16,777 INFO L78 Accepts]: Start accepts. Automaton has 2009 states and 2512 transitions. Word has length 146 [2024-11-22 12:55:16,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:55:16,777 INFO L471 AbstractCegarLoop]: Abstraction has 2009 states and 2512 transitions. [2024-11-22 12:55:16,777 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-22 12:55:16,777 INFO L276 IsEmpty]: Start isEmpty. Operand 2009 states and 2512 transitions. [2024-11-22 12:55:16,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-22 12:55:16,779 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:55:16,779 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:55:16,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-22 12:55:16,779 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:55:16,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:55:16,779 INFO L85 PathProgramCache]: Analyzing trace with hash -1026702444, now seen corresponding path program 1 times [2024-11-22 12:55:16,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:55:16,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779303420] [2024-11-22 12:55:16,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:55:16,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:55:16,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:55:17,279 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-22 12:55:17,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:55:17,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779303420] [2024-11-22 12:55:17,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779303420] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:55:17,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:55:17,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-22 12:55:17,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209604] [2024-11-22 12:55:17,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:55:17,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-22 12:55:17,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:55:17,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-22 12:55:17,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2024-11-22 12:55:17,282 INFO L87 Difference]: Start difference. First operand 2009 states and 2512 transitions. Second operand has 14 states, 13 states have (on average 4.615384615384615) internal successors, (60), 14 states have internal predecessors, (60), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-22 12:55:17,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:55:17,901 INFO L93 Difference]: Finished difference Result 3072 states and 3798 transitions. [2024-11-22 12:55:17,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-22 12:55:17,901 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 4.615384615384615) internal successors, (60), 14 states have internal predecessors, (60), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 147 [2024-11-22 12:55:17,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:55:17,909 INFO L225 Difference]: With dead ends: 3072 [2024-11-22 12:55:17,909 INFO L226 Difference]: Without dead ends: 3070 [2024-11-22 12:55:17,910 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=193, Invalid=1067, Unknown=0, NotChecked=0, Total=1260 [2024-11-22 12:55:17,911 INFO L432 NwaCegarLoop]: 135 mSDtfsCounter, 389 mSDsluCounter, 1080 mSDsCounter, 0 mSdLazyCounter, 442 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 389 SdHoareTripleChecker+Valid, 1215 SdHoareTripleChecker+Invalid, 483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 12:55:17,911 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [389 Valid, 1215 Invalid, 483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 442 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 12:55:17,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3070 states. [2024-11-22 12:55:17,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3070 to 2429. [2024-11-22 12:55:17,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2429 states, 2208 states have (on average 1.2006340579710144) internal successors, (2651), 2224 states have internal predecessors, (2651), 180 states have call successors, (180), 40 states have call predecessors, (180), 40 states have return successors, (180), 164 states have call predecessors, (180), 180 states have call successors, (180) [2024-11-22 12:55:18,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2429 states to 2429 states and 3011 transitions. [2024-11-22 12:55:18,002 INFO L78 Accepts]: Start accepts. Automaton has 2429 states and 3011 transitions. Word has length 147 [2024-11-22 12:55:18,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:55:18,002 INFO L471 AbstractCegarLoop]: Abstraction has 2429 states and 3011 transitions. [2024-11-22 12:55:18,002 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 4.615384615384615) internal successors, (60), 14 states have internal predecessors, (60), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-22 12:55:18,002 INFO L276 IsEmpty]: Start isEmpty. Operand 2429 states and 3011 transitions. [2024-11-22 12:55:18,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-22 12:55:18,004 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:55:18,004 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:55:18,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-22 12:55:18,004 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:55:18,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:55:18,004 INFO L85 PathProgramCache]: Analyzing trace with hash 2084066237, now seen corresponding path program 1 times [2024-11-22 12:55:18,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:55:18,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867359663] [2024-11-22 12:55:18,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:55:18,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:55:18,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:55:19,968 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-22 12:55:19,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:55:19,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867359663] [2024-11-22 12:55:19,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867359663] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:55:19,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:55:19,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2024-11-22 12:55:19,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934413482] [2024-11-22 12:55:19,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:55:19,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-22 12:55:19,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:55:19,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-22 12:55:19,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=550, Unknown=0, NotChecked=0, Total=650 [2024-11-22 12:55:19,970 INFO L87 Difference]: Start difference. First operand 2429 states and 3011 transitions. Second operand has 26 states, 23 states have (on average 2.608695652173913) internal successors, (60), 24 states have internal predecessors, (60), 7 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 6 states have call predecessors, (18), 7 states have call successors, (18) [2024-11-22 12:55:22,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:55:22,279 INFO L93 Difference]: Finished difference Result 4895 states and 6058 transitions. [2024-11-22 12:55:22,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-22 12:55:22,280 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 23 states have (on average 2.608695652173913) internal successors, (60), 24 states have internal predecessors, (60), 7 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 6 states have call predecessors, (18), 7 states have call successors, (18) Word has length 147 [2024-11-22 12:55:22,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:55:22,288 INFO L225 Difference]: With dead ends: 4895 [2024-11-22 12:55:22,290 INFO L226 Difference]: Without dead ends: 2469 [2024-11-22 12:55:22,294 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=305, Invalid=1417, Unknown=0, NotChecked=0, Total=1722 [2024-11-22 12:55:22,295 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 472 mSDsluCounter, 1015 mSDsCounter, 0 mSdLazyCounter, 1163 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 472 SdHoareTripleChecker+Valid, 1120 SdHoareTripleChecker+Invalid, 1203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-22 12:55:22,296 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [472 Valid, 1120 Invalid, 1203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1163 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-22 12:55:22,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2469 states. [2024-11-22 12:55:22,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2469 to 2443. [2024-11-22 12:55:22,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2443 states, 2222 states have (on average 1.198919891989199) internal successors, (2664), 2238 states have internal predecessors, (2664), 180 states have call successors, (180), 40 states have call predecessors, (180), 40 states have return successors, (180), 164 states have call predecessors, (180), 180 states have call successors, (180) [2024-11-22 12:55:22,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2443 states to 2443 states and 3024 transitions. [2024-11-22 12:55:22,390 INFO L78 Accepts]: Start accepts. Automaton has 2443 states and 3024 transitions. Word has length 147 [2024-11-22 12:55:22,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:55:22,390 INFO L471 AbstractCegarLoop]: Abstraction has 2443 states and 3024 transitions. [2024-11-22 12:55:22,390 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 23 states have (on average 2.608695652173913) internal successors, (60), 24 states have internal predecessors, (60), 7 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 6 states have call predecessors, (18), 7 states have call successors, (18) [2024-11-22 12:55:22,390 INFO L276 IsEmpty]: Start isEmpty. Operand 2443 states and 3024 transitions. [2024-11-22 12:55:22,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-22 12:55:22,392 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:55:22,392 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:55:22,392 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-22 12:55:22,393 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:55:22,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:55:22,393 INFO L85 PathProgramCache]: Analyzing trace with hash 1462826518, now seen corresponding path program 1 times [2024-11-22 12:55:22,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:55:22,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68296723] [2024-11-22 12:55:22,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:55:22,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:55:22,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:55:22,514 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-22 12:55:22,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:55:22,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68296723] [2024-11-22 12:55:22,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68296723] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:55:22,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:55:22,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 12:55:22,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671963014] [2024-11-22 12:55:22,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:55:22,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 12:55:22,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:55:22,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 12:55:22,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 12:55:22,516 INFO L87 Difference]: Start difference. First operand 2443 states and 3024 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-22 12:55:22,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:55:22,693 INFO L93 Difference]: Finished difference Result 5555 states and 6875 transitions. [2024-11-22 12:55:22,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 12:55:22,694 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 147 [2024-11-22 12:55:22,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:55:22,702 INFO L225 Difference]: With dead ends: 5555 [2024-11-22 12:55:22,703 INFO L226 Difference]: Without dead ends: 3115 [2024-11-22 12:55:22,706 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 12:55:22,706 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 64 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 12:55:22,706 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 584 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 12:55:22,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3115 states. [2024-11-22 12:55:22,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3115 to 2527. [2024-11-22 12:55:22,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2527 states, 2285 states have (on average 1.1986870897155362) internal successors, (2739), 2303 states have internal predecessors, (2739), 196 states have call successors, (196), 45 states have call predecessors, (196), 45 states have return successors, (196), 178 states have call predecessors, (196), 196 states have call successors, (196) [2024-11-22 12:55:22,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2527 states to 2527 states and 3131 transitions. [2024-11-22 12:55:22,850 INFO L78 Accepts]: Start accepts. Automaton has 2527 states and 3131 transitions. Word has length 147 [2024-11-22 12:55:22,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:55:22,851 INFO L471 AbstractCegarLoop]: Abstraction has 2527 states and 3131 transitions. [2024-11-22 12:55:22,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-22 12:55:22,851 INFO L276 IsEmpty]: Start isEmpty. Operand 2527 states and 3131 transitions. [2024-11-22 12:55:22,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-22 12:55:22,852 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:55:22,852 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:55:22,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-22 12:55:22,852 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:55:22,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:55:22,853 INFO L85 PathProgramCache]: Analyzing trace with hash -185431528, now seen corresponding path program 1 times [2024-11-22 12:55:22,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:55:22,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062761083] [2024-11-22 12:55:22,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:55:22,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:55:22,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:55:23,218 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-22 12:55:23,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:55:23,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062761083] [2024-11-22 12:55:23,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062761083] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:55:23,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:55:23,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-22 12:55:23,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699533368] [2024-11-22 12:55:23,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:55:23,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 12:55:23,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:55:23,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 12:55:23,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-22 12:55:23,219 INFO L87 Difference]: Start difference. First operand 2527 states and 3131 transitions. Second operand has 9 states, 8 states have (on average 7.5) internal successors, (60), 9 states have internal predecessors, (60), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-22 12:55:23,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:55:23,632 INFO L93 Difference]: Finished difference Result 5276 states and 6527 transitions. [2024-11-22 12:55:23,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 12:55:23,632 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.5) internal successors, (60), 9 states have internal predecessors, (60), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 147 [2024-11-22 12:55:23,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:55:23,638 INFO L225 Difference]: With dead ends: 5276 [2024-11-22 12:55:23,638 INFO L226 Difference]: Without dead ends: 2752 [2024-11-22 12:55:23,640 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2024-11-22 12:55:23,641 INFO L432 NwaCegarLoop]: 135 mSDtfsCounter, 176 mSDsluCounter, 457 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 592 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 12:55:23,641 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 592 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 12:55:23,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2752 states. [2024-11-22 12:55:23,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2752 to 2527. [2024-11-22 12:55:23,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2527 states, 2285 states have (on average 1.1921225382932166) internal successors, (2724), 2303 states have internal predecessors, (2724), 196 states have call successors, (196), 45 states have call predecessors, (196), 45 states have return successors, (196), 178 states have call predecessors, (196), 196 states have call successors, (196) [2024-11-22 12:55:23,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2527 states to 2527 states and 3116 transitions. [2024-11-22 12:55:23,738 INFO L78 Accepts]: Start accepts. Automaton has 2527 states and 3116 transitions. Word has length 147 [2024-11-22 12:55:23,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:55:23,738 INFO L471 AbstractCegarLoop]: Abstraction has 2527 states and 3116 transitions. [2024-11-22 12:55:23,738 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.5) internal successors, (60), 9 states have internal predecessors, (60), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-22 12:55:23,738 INFO L276 IsEmpty]: Start isEmpty. Operand 2527 states and 3116 transitions. [2024-11-22 12:55:23,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-22 12:55:23,739 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:55:23,740 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:55:23,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-22 12:55:23,740 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:55:23,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:55:23,740 INFO L85 PathProgramCache]: Analyzing trace with hash -364949336, now seen corresponding path program 1 times [2024-11-22 12:55:23,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:55:23,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385772993] [2024-11-22 12:55:23,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:55:23,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:55:23,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat