./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-56.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-56.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 5d9fefadeb2433964027133b2762439d0736284a9020eef9186f2d2400ba62b5 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 00:36:50,109 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 00:36:50,185 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 00:36:50,191 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 00:36:50,192 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 00:36:50,221 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 00:36:50,221 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 00:36:50,222 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 00:36:50,223 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 00:36:50,224 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 00:36:50,225 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 00:36:50,225 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 00:36:50,226 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 00:36:50,226 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 00:36:50,228 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 00:36:50,228 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 00:36:50,228 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 00:36:50,229 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 00:36:50,229 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 00:36:50,229 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 00:36:50,229 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 00:36:50,232 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 00:36:50,233 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 00:36:50,233 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 00:36:50,233 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 00:36:50,233 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 00:36:50,234 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 00:36:50,234 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 00:36:50,234 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 00:36:50,234 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 00:36:50,235 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 00:36:50,235 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 00:36:50,235 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 00:36:50,235 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 00:36:50,235 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 00:36:50,236 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 00:36:50,236 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 00:36:50,237 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 00:36:50,237 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 00:36:50,238 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 00:36:50,238 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 00:36:50,238 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 00:36:50,239 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5d9fefadeb2433964027133b2762439d0736284a9020eef9186f2d2400ba62b5 [2024-11-19 00:36:50,540 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 00:36:50,562 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 00:36:50,566 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 00:36:50,567 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 00:36:50,567 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 00:36:50,569 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-56.i [2024-11-19 00:36:52,026 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 00:36:52,253 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 00:36:52,254 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-56.i [2024-11-19 00:36:52,263 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd3d98d77/45c4084a87494db9a70977292fbce33d/FLAG4fe6b739a [2024-11-19 00:36:52,597 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd3d98d77/45c4084a87494db9a70977292fbce33d [2024-11-19 00:36:52,599 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 00:36:52,600 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 00:36:52,601 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 00:36:52,601 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 00:36:52,605 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 00:36:52,606 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 12:36:52" (1/1) ... [2024-11-19 00:36:52,606 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26d0e5c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:36:52, skipping insertion in model container [2024-11-19 00:36:52,607 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 12:36:52" (1/1) ... [2024-11-19 00:36:52,634 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 00:36:52,808 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-a_file-56.i[916,929] [2024-11-19 00:36:52,889 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 00:36:52,898 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 00:36:52,909 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-a_file-56.i[916,929] [2024-11-19 00:36:52,955 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 00:36:52,981 INFO L204 MainTranslator]: Completed translation [2024-11-19 00:36:52,982 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:36:52 WrapperNode [2024-11-19 00:36:52,982 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 00:36:52,983 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 00:36:52,983 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 00:36:52,983 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 00:36:52,990 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:36:52" (1/1) ... [2024-11-19 00:36:53,009 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:36:52" (1/1) ... [2024-11-19 00:36:53,050 INFO L138 Inliner]: procedures = 29, calls = 181, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 575 [2024-11-19 00:36:53,050 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 00:36:53,051 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 00:36:53,051 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 00:36:53,051 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 00:36:53,069 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:36:52" (1/1) ... [2024-11-19 00:36:53,069 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:36:52" (1/1) ... [2024-11-19 00:36:53,083 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:36:52" (1/1) ... [2024-11-19 00:36:53,114 INFO L175 MemorySlicer]: Split 147 memory accesses to 5 slices as follows [2, 41, 11, 16, 77]. 52 percent of accesses are in the largest equivalence class. The 16 initializations are split as follows [2, 5, 2, 1, 6]. The 18 writes are split as follows [0, 8, 2, 1, 7]. [2024-11-19 00:36:53,114 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:36:52" (1/1) ... [2024-11-19 00:36:53,114 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:36:52" (1/1) ... [2024-11-19 00:36:53,153 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:36:52" (1/1) ... [2024-11-19 00:36:53,162 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:36:52" (1/1) ... [2024-11-19 00:36:53,172 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:36:52" (1/1) ... [2024-11-19 00:36:53,179 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:36:52" (1/1) ... [2024-11-19 00:36:53,191 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 00:36:53,199 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 00:36:53,199 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 00:36:53,199 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 00:36:53,200 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:36:52" (1/1) ... [2024-11-19 00:36:53,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 00:36:53,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:36:53,252 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) [2024-11-19 00:36:53,256 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 [2024-11-19 00:36:53,307 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 00:36:53,308 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-19 00:36:53,308 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-19 00:36:53,308 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-19 00:36:53,308 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-11-19 00:36:53,308 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-11-19 00:36:53,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 00:36:53,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-19 00:36:53,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-19 00:36:53,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-19 00:36:53,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-19 00:36:53,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-11-19 00:36:53,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-11-19 00:36:53,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-11-19 00:36:53,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-11-19 00:36:53,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-11-19 00:36:53,310 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 00:36:53,310 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-19 00:36:53,311 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-19 00:36:53,311 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-19 00:36:53,311 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-19 00:36:53,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-11-19 00:36:53,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-11-19 00:36:53,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2024-11-19 00:36:53,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2024-11-19 00:36:53,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2024-11-19 00:36:53,312 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-19 00:36:53,312 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-19 00:36:53,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 00:36:53,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 00:36:53,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-19 00:36:53,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-19 00:36:53,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-19 00:36:53,313 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 00:36:53,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 00:36:53,495 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 00:36:53,497 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 00:36:54,066 INFO L? ?]: Removed 158 outVars from TransFormulas that were not future-live. [2024-11-19 00:36:54,066 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 00:36:54,089 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 00:36:54,091 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-19 00:36:54,092 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 12:36:54 BoogieIcfgContainer [2024-11-19 00:36:54,092 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 00:36:54,094 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 00:36:54,094 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 00:36:54,098 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 00:36:54,099 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 12:36:52" (1/3) ... [2024-11-19 00:36:54,100 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@907096f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 12:36:54, skipping insertion in model container [2024-11-19 00:36:54,100 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:36:52" (2/3) ... [2024-11-19 00:36:54,100 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@907096f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 12:36:54, skipping insertion in model container [2024-11-19 00:36:54,100 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 12:36:54" (3/3) ... [2024-11-19 00:36:54,102 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-56.i [2024-11-19 00:36:54,118 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 00:36:54,118 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 00:36:54,183 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 00:36:54,190 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;@3d6cf89f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 00:36:54,190 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 00:36:54,195 INFO L276 IsEmpty]: Start isEmpty. Operand has 126 states, 104 states have (on average 1.4326923076923077) internal successors, (149), 105 states have internal predecessors, (149), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-19 00:36:54,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-19 00:36:54,208 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:36:54,208 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:36:54,209 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:36:54,213 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:36:54,213 INFO L85 PathProgramCache]: Analyzing trace with hash -70143542, now seen corresponding path program 1 times [2024-11-19 00:36:54,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:36:54,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135918480] [2024-11-19 00:36:54,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:36:54,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:36:54,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:36:54,555 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2024-11-19 00:36:54,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:36:54,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135918480] [2024-11-19 00:36:54,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135918480] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 00:36:54,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1788620864] [2024-11-19 00:36:54,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:36:54,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:36:54,559 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:36:54,562 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) [2024-11-19 00:36:54,563 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 00:36:54,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:36:54,874 INFO L255 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-19 00:36:54,885 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 00:36:54,915 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2024-11-19 00:36:54,917 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 00:36:54,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1788620864] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:36:54,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 00:36:54,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-19 00:36:54,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242981377] [2024-11-19 00:36:54,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:36:54,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 00:36:54,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:36:54,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 00:36:54,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 00:36:54,951 INFO L87 Difference]: Start difference. First operand has 126 states, 104 states have (on average 1.4326923076923077) internal successors, (149), 105 states have internal predecessors, (149), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-19 00:36:54,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:36:54,993 INFO L93 Difference]: Finished difference Result 245 states and 387 transitions. [2024-11-19 00:36:54,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 00:36:54,997 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 151 [2024-11-19 00:36:54,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:36:55,006 INFO L225 Difference]: With dead ends: 245 [2024-11-19 00:36:55,006 INFO L226 Difference]: Without dead ends: 122 [2024-11-19 00:36:55,011 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 00:36:55,015 INFO L432 NwaCegarLoop]: 180 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, 180 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 [2024-11-19 00:36:55,018 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 00:36:55,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-11-19 00:36:55,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2024-11-19 00:36:55,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 101 states have (on average 1.4059405940594059) internal successors, (142), 101 states have internal predecessors, (142), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-19 00:36:55,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 180 transitions. [2024-11-19 00:36:55,080 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 180 transitions. Word has length 151 [2024-11-19 00:36:55,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:36:55,081 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 180 transitions. [2024-11-19 00:36:55,082 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-19 00:36:55,082 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 180 transitions. [2024-11-19 00:36:55,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-19 00:36:55,087 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:36:55,087 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:36:55,107 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-19 00:36:55,289 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 [2024-11-19 00:36:55,290 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:36:55,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:36:55,290 INFO L85 PathProgramCache]: Analyzing trace with hash 155255632, now seen corresponding path program 1 times [2024-11-19 00:36:55,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:36:55,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128334464] [2024-11-19 00:36:55,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:36:55,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:36:55,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:36:55,633 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:36:55,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:36:55,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128334464] [2024-11-19 00:36:55,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128334464] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:36:55,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:36:55,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 00:36:55,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399654055] [2024-11-19 00:36:55,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:36:55,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 00:36:55,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:36:55,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 00:36:55,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 00:36:55,639 INFO L87 Difference]: Start difference. First operand 122 states and 180 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:36:55,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:36:55,677 INFO L93 Difference]: Finished difference Result 242 states and 359 transitions. [2024-11-19 00:36:55,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 00:36:55,678 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 151 [2024-11-19 00:36:55,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:36:55,681 INFO L225 Difference]: With dead ends: 242 [2024-11-19 00:36:55,683 INFO L226 Difference]: Without dead ends: 123 [2024-11-19 00:36:55,686 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 00:36:55,688 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 0 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 00:36:55,688 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 352 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 00:36:55,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2024-11-19 00:36:55,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2024-11-19 00:36:55,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 102 states have (on average 1.4019607843137254) internal successors, (143), 102 states have internal predecessors, (143), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-19 00:36:55,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 181 transitions. [2024-11-19 00:36:55,708 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 181 transitions. Word has length 151 [2024-11-19 00:36:55,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:36:55,710 INFO L471 AbstractCegarLoop]: Abstraction has 123 states and 181 transitions. [2024-11-19 00:36:55,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:36:55,710 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 181 transitions. [2024-11-19 00:36:55,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-19 00:36:55,716 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:36:55,716 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:36:55,716 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 00:36:55,717 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:36:55,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:36:55,717 INFO L85 PathProgramCache]: Analyzing trace with hash -662392818, now seen corresponding path program 1 times [2024-11-19 00:36:55,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:36:55,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950446076] [2024-11-19 00:36:55,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:36:55,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:36:55,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:36:57,516 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:36:57,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:36:57,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950446076] [2024-11-19 00:36:57,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950446076] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:36:57,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:36:57,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-19 00:36:57,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291793553] [2024-11-19 00:36:57,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:36:57,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-19 00:36:57,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:36:57,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-19 00:36:57,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-19 00:36:57,525 INFO L87 Difference]: Start difference. First operand 123 states and 181 transitions. Second operand has 12 states, 12 states have (on average 4.916666666666667) internal successors, (59), 12 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:36:58,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:36:58,736 INFO L93 Difference]: Finished difference Result 725 states and 1076 transitions. [2024-11-19 00:36:58,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-19 00:36:58,738 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.916666666666667) internal successors, (59), 12 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 151 [2024-11-19 00:36:58,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:36:58,744 INFO L225 Difference]: With dead ends: 725 [2024-11-19 00:36:58,745 INFO L226 Difference]: Without dead ends: 605 [2024-11-19 00:36:58,746 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=153, Invalid=447, Unknown=0, NotChecked=0, Total=600 [2024-11-19 00:36:58,747 INFO L432 NwaCegarLoop]: 269 mSDtfsCounter, 979 mSDsluCounter, 1815 mSDsCounter, 0 mSdLazyCounter, 952 mSolverCounterSat, 152 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 979 SdHoareTripleChecker+Valid, 2084 SdHoareTripleChecker+Invalid, 1104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 152 IncrementalHoareTripleChecker+Valid, 952 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-19 00:36:58,749 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [979 Valid, 2084 Invalid, 1104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [152 Valid, 952 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-19 00:36:58,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2024-11-19 00:36:58,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 382. [2024-11-19 00:36:58,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 331 states have (on average 1.4501510574018126) internal successors, (480), 332 states have internal predecessors, (480), 47 states have call successors, (47), 3 states have call predecessors, (47), 3 states have return successors, (47), 46 states have call predecessors, (47), 47 states have call successors, (47) [2024-11-19 00:36:58,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 574 transitions. [2024-11-19 00:36:58,804 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 574 transitions. Word has length 151 [2024-11-19 00:36:58,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:36:58,806 INFO L471 AbstractCegarLoop]: Abstraction has 382 states and 574 transitions. [2024-11-19 00:36:58,806 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.916666666666667) internal successors, (59), 12 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:36:58,806 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 574 transitions. [2024-11-19 00:36:58,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-19 00:36:58,812 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:36:58,812 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:36:58,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 00:36:58,812 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:36:58,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:36:58,813 INFO L85 PathProgramCache]: Analyzing trace with hash 439138535, now seen corresponding path program 1 times [2024-11-19 00:36:58,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:36:58,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278854641] [2024-11-19 00:36:58,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:36:58,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:36:58,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:36:58,919 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:36:58,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:36:58,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278854641] [2024-11-19 00:36:58,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278854641] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:36:58,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:36:58,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 00:36:58,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805037578] [2024-11-19 00:36:58,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:36:58,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 00:36:58,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:36:58,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 00:36:58,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 00:36:58,925 INFO L87 Difference]: Start difference. First operand 382 states and 574 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:36:58,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:36:58,964 INFO L93 Difference]: Finished difference Result 758 states and 1141 transitions. [2024-11-19 00:36:58,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 00:36:58,965 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 152 [2024-11-19 00:36:58,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:36:58,969 INFO L225 Difference]: With dead ends: 758 [2024-11-19 00:36:58,970 INFO L226 Difference]: Without dead ends: 379 [2024-11-19 00:36:58,971 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 00:36:58,972 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 0 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 00:36:58,972 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 345 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 00:36:58,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2024-11-19 00:36:58,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 379. [2024-11-19 00:36:58,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 328 states have (on average 1.4451219512195121) internal successors, (474), 329 states have internal predecessors, (474), 47 states have call successors, (47), 3 states have call predecessors, (47), 3 states have return successors, (47), 46 states have call predecessors, (47), 47 states have call successors, (47) [2024-11-19 00:36:58,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 568 transitions. [2024-11-19 00:36:58,995 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 568 transitions. Word has length 152 [2024-11-19 00:36:58,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:36:58,995 INFO L471 AbstractCegarLoop]: Abstraction has 379 states and 568 transitions. [2024-11-19 00:36:58,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:36:58,996 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 568 transitions. [2024-11-19 00:36:58,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-19 00:36:58,998 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:36:58,998 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:36:58,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 00:36:58,998 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:36:58,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:36:58,999 INFO L85 PathProgramCache]: Analyzing trace with hash -234426631, now seen corresponding path program 1 times [2024-11-19 00:36:58,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:36:58,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660311516] [2024-11-19 00:36:58,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:36:59,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:36:59,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:36:59,106 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:36:59,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:36:59,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660311516] [2024-11-19 00:36:59,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660311516] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:36:59,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:36:59,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 00:36:59,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297498274] [2024-11-19 00:36:59,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:36:59,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 00:36:59,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:36:59,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 00:36:59,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 00:36:59,111 INFO L87 Difference]: Start difference. First operand 379 states and 568 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:36:59,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:36:59,156 INFO L93 Difference]: Finished difference Result 760 states and 1143 transitions. [2024-11-19 00:36:59,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 00:36:59,158 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 152 [2024-11-19 00:36:59,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:36:59,161 INFO L225 Difference]: With dead ends: 760 [2024-11-19 00:36:59,163 INFO L226 Difference]: Without dead ends: 384 [2024-11-19 00:36:59,165 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 00:36:59,166 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 0 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 00:36:59,168 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 344 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 00:36:59,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2024-11-19 00:36:59,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 384. [2024-11-19 00:36:59,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 333 states have (on average 1.4384384384384385) internal successors, (479), 334 states have internal predecessors, (479), 47 states have call successors, (47), 3 states have call predecessors, (47), 3 states have return successors, (47), 46 states have call predecessors, (47), 47 states have call successors, (47) [2024-11-19 00:36:59,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 573 transitions. [2024-11-19 00:36:59,185 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 573 transitions. Word has length 152 [2024-11-19 00:36:59,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:36:59,186 INFO L471 AbstractCegarLoop]: Abstraction has 384 states and 573 transitions. [2024-11-19 00:36:59,186 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:36:59,187 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 573 transitions. [2024-11-19 00:36:59,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-19 00:36:59,188 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:36:59,189 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:36:59,189 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 00:36:59,189 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:36:59,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:36:59,190 INFO L85 PathProgramCache]: Analyzing trace with hash -1910188739, now seen corresponding path program 1 times [2024-11-19 00:36:59,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:36:59,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487044420] [2024-11-19 00:36:59,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:36:59,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:36:59,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:36:59,281 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:36:59,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:36:59,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487044420] [2024-11-19 00:36:59,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487044420] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:36:59,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:36:59,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 00:36:59,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949943453] [2024-11-19 00:36:59,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:36:59,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 00:36:59,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:36:59,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 00:36:59,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 00:36:59,285 INFO L87 Difference]: Start difference. First operand 384 states and 573 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:36:59,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:36:59,317 INFO L93 Difference]: Finished difference Result 760 states and 1135 transitions. [2024-11-19 00:36:59,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 00:36:59,318 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 152 [2024-11-19 00:36:59,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:36:59,321 INFO L225 Difference]: With dead ends: 760 [2024-11-19 00:36:59,321 INFO L226 Difference]: Without dead ends: 379 [2024-11-19 00:36:59,322 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 00:36:59,322 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 0 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 00:36:59,323 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 345 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 00:36:59,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2024-11-19 00:36:59,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 379. [2024-11-19 00:36:59,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 328 states have (on average 1.4298780487804879) internal successors, (469), 329 states have internal predecessors, (469), 47 states have call successors, (47), 3 states have call predecessors, (47), 3 states have return successors, (47), 46 states have call predecessors, (47), 47 states have call successors, (47) [2024-11-19 00:36:59,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 563 transitions. [2024-11-19 00:36:59,339 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 563 transitions. Word has length 152 [2024-11-19 00:36:59,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:36:59,340 INFO L471 AbstractCegarLoop]: Abstraction has 379 states and 563 transitions. [2024-11-19 00:36:59,340 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:36:59,340 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 563 transitions. [2024-11-19 00:36:59,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-19 00:36:59,346 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:36:59,346 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:36:59,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 00:36:59,346 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:36:59,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:36:59,347 INFO L85 PathProgramCache]: Analyzing trace with hash -2133860781, now seen corresponding path program 1 times [2024-11-19 00:36:59,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:36:59,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503843816] [2024-11-19 00:36:59,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:36:59,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:36:59,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:36:59,595 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2024-11-19 00:36:59,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:36:59,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503843816] [2024-11-19 00:36:59,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503843816] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 00:36:59,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1196759192] [2024-11-19 00:36:59,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:36:59,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:36:59,596 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:36:59,598 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) [2024-11-19 00:36:59,599 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 00:36:59,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:36:59,821 INFO L255 TraceCheckSpWp]: Trace formula consists of 512 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 00:36:59,827 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 00:36:59,875 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:36:59,875 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 00:36:59,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1196759192] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:36:59,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 00:36:59,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 8 [2024-11-19 00:36:59,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327861202] [2024-11-19 00:36:59,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:36:59,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 00:36:59,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:36:59,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 00:36:59,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-19 00:36:59,879 INFO L87 Difference]: Start difference. First operand 379 states and 563 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:36:59,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:36:59,935 INFO L93 Difference]: Finished difference Result 764 states and 1135 transitions. [2024-11-19 00:36:59,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 00:36:59,938 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 153 [2024-11-19 00:36:59,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:36:59,941 INFO L225 Difference]: With dead ends: 764 [2024-11-19 00:36:59,943 INFO L226 Difference]: Without dead ends: 388 [2024-11-19 00:36:59,944 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-19 00:36:59,945 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 0 mSDsluCounter, 514 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 691 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 00:36:59,946 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 691 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 00:36:59,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2024-11-19 00:36:59,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 388. [2024-11-19 00:36:59,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 388 states, 337 states have (on average 1.4183976261127595) internal successors, (478), 338 states have internal predecessors, (478), 47 states have call successors, (47), 3 states have call predecessors, (47), 3 states have return successors, (47), 46 states have call predecessors, (47), 47 states have call successors, (47) [2024-11-19 00:36:59,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 572 transitions. [2024-11-19 00:36:59,971 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 572 transitions. Word has length 153 [2024-11-19 00:36:59,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:36:59,973 INFO L471 AbstractCegarLoop]: Abstraction has 388 states and 572 transitions. [2024-11-19 00:36:59,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:36:59,974 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 572 transitions. [2024-11-19 00:36:59,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-19 00:36:59,976 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:36:59,976 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:36:59,995 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-19 00:37:00,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-19 00:37:00,178 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:37:00,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:37:00,180 INFO L85 PathProgramCache]: Analyzing trace with hash 1297495016, now seen corresponding path program 1 times [2024-11-19 00:37:00,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:37:00,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198434131] [2024-11-19 00:37:00,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:37:00,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:37:00,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:37:01,828 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:37:01,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:37:01,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198434131] [2024-11-19 00:37:01,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198434131] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:37:01,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:37:01,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-19 00:37:01,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088266639] [2024-11-19 00:37:01,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:37:01,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 00:37:01,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:37:01,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 00:37:01,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-19 00:37:01,832 INFO L87 Difference]: Start difference. First operand 388 states and 572 transitions. Second operand has 10 states, 7 states have (on average 8.714285714285714) internal successors, (61), 10 states have internal predecessors, (61), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-19 00:37:02,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:37:02,425 INFO L93 Difference]: Finished difference Result 986 states and 1455 transitions. [2024-11-19 00:37:02,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 00:37:02,426 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 7 states have (on average 8.714285714285714) internal successors, (61), 10 states have internal predecessors, (61), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) Word has length 153 [2024-11-19 00:37:02,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:37:02,430 INFO L225 Difference]: With dead ends: 986 [2024-11-19 00:37:02,430 INFO L226 Difference]: Without dead ends: 601 [2024-11-19 00:37:02,431 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-19 00:37:02,432 INFO L432 NwaCegarLoop]: 146 mSDtfsCounter, 120 mSDsluCounter, 884 mSDsCounter, 0 mSdLazyCounter, 579 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 1030 SdHoareTripleChecker+Invalid, 580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-19 00:37:02,432 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 1030 Invalid, 580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 579 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-19 00:37:02,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2024-11-19 00:37:02,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 527. [2024-11-19 00:37:02,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 466 states have (on average 1.4356223175965666) internal successors, (669), 468 states have internal predecessors, (669), 56 states have call successors, (56), 4 states have call predecessors, (56), 4 states have return successors, (56), 54 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-19 00:37:02,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 781 transitions. [2024-11-19 00:37:02,464 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 781 transitions. Word has length 153 [2024-11-19 00:37:02,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:37:02,464 INFO L471 AbstractCegarLoop]: Abstraction has 527 states and 781 transitions. [2024-11-19 00:37:02,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 7 states have (on average 8.714285714285714) internal successors, (61), 10 states have internal predecessors, (61), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-19 00:37:02,465 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 781 transitions. [2024-11-19 00:37:02,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-19 00:37:02,466 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:37:02,466 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:37:02,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 00:37:02,466 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:37:02,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:37:02,467 INFO L85 PathProgramCache]: Analyzing trace with hash 17631338, now seen corresponding path program 1 times [2024-11-19 00:37:02,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:37:02,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112140789] [2024-11-19 00:37:02,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:37:02,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:37:02,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:37:03,556 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:37:03,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:37:03,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112140789] [2024-11-19 00:37:03,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112140789] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:37:03,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:37:03,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-19 00:37:03,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415207985] [2024-11-19 00:37:03,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:37:03,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 00:37:03,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:37:03,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 00:37:03,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-19 00:37:03,559 INFO L87 Difference]: Start difference. First operand 527 states and 781 transitions. Second operand has 10 states, 9 states have (on average 6.777777777777778) internal successors, (61), 10 states have internal predecessors, (61), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-19 00:37:04,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:37:04,509 INFO L93 Difference]: Finished difference Result 1223 states and 1810 transitions. [2024-11-19 00:37:04,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 00:37:04,509 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.777777777777778) internal successors, (61), 10 states have internal predecessors, (61), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 153 [2024-11-19 00:37:04,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:37:04,513 INFO L225 Difference]: With dead ends: 1223 [2024-11-19 00:37:04,514 INFO L226 Difference]: Without dead ends: 699 [2024-11-19 00:37:04,515 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=96, Invalid=284, Unknown=0, NotChecked=0, Total=380 [2024-11-19 00:37:04,516 INFO L432 NwaCegarLoop]: 182 mSDtfsCounter, 655 mSDsluCounter, 1031 mSDsCounter, 0 mSdLazyCounter, 721 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 655 SdHoareTripleChecker+Valid, 1213 SdHoareTripleChecker+Invalid, 853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 721 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-19 00:37:04,517 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [655 Valid, 1213 Invalid, 853 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 721 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-19 00:37:04,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2024-11-19 00:37:04,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 553. [2024-11-19 00:37:04,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 492 states have (on average 1.4451219512195121) internal successors, (711), 494 states have internal predecessors, (711), 56 states have call successors, (56), 4 states have call predecessors, (56), 4 states have return successors, (56), 54 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-19 00:37:04,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 823 transitions. [2024-11-19 00:37:04,549 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 823 transitions. Word has length 153 [2024-11-19 00:37:04,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:37:04,552 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 823 transitions. [2024-11-19 00:37:04,552 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.777777777777778) internal successors, (61), 10 states have internal predecessors, (61), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-19 00:37:04,552 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 823 transitions. [2024-11-19 00:37:04,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-19 00:37:04,554 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:37:04,554 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:37:04,555 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 00:37:04,555 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:37:04,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:37:04,555 INFO L85 PathProgramCache]: Analyzing trace with hash -569174676, now seen corresponding path program 1 times [2024-11-19 00:37:04,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:37:04,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14653379] [2024-11-19 00:37:04,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:37:04,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:37:04,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:37:05,944 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:37:05,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:37:05,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14653379] [2024-11-19 00:37:05,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14653379] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:37:05,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:37:05,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-19 00:37:05,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479415370] [2024-11-19 00:37:05,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:37:05,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 00:37:05,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:37:05,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 00:37:05,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-19 00:37:05,948 INFO L87 Difference]: Start difference. First operand 553 states and 823 transitions. Second operand has 10 states, 7 states have (on average 8.714285714285714) internal successors, (61), 10 states have internal predecessors, (61), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-19 00:37:06,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:37:06,484 INFO L93 Difference]: Finished difference Result 1171 states and 1737 transitions. [2024-11-19 00:37:06,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 00:37:06,485 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 7 states have (on average 8.714285714285714) internal successors, (61), 10 states have internal predecessors, (61), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) Word has length 153 [2024-11-19 00:37:06,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:37:06,488 INFO L225 Difference]: With dead ends: 1171 [2024-11-19 00:37:06,489 INFO L226 Difference]: Without dead ends: 621 [2024-11-19 00:37:06,490 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-19 00:37:06,490 INFO L432 NwaCegarLoop]: 149 mSDtfsCounter, 115 mSDsluCounter, 886 mSDsCounter, 0 mSdLazyCounter, 582 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 1035 SdHoareTripleChecker+Invalid, 583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-19 00:37:06,491 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 1035 Invalid, 583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 582 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-19 00:37:06,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 621 states. [2024-11-19 00:37:06,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 621 to 548. [2024-11-19 00:37:06,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 487 states have (on average 1.4435318275154003) internal successors, (703), 489 states have internal predecessors, (703), 56 states have call successors, (56), 4 states have call predecessors, (56), 4 states have return successors, (56), 54 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-19 00:37:06,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 815 transitions. [2024-11-19 00:37:06,523 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 815 transitions. Word has length 153 [2024-11-19 00:37:06,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:37:06,523 INFO L471 AbstractCegarLoop]: Abstraction has 548 states and 815 transitions. [2024-11-19 00:37:06,523 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 7 states have (on average 8.714285714285714) internal successors, (61), 10 states have internal predecessors, (61), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-19 00:37:06,524 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 815 transitions. [2024-11-19 00:37:06,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-19 00:37:06,527 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:37:06,527 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:37:06,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 00:37:06,527 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:37:06,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:37:06,528 INFO L85 PathProgramCache]: Analyzing trace with hash 561773252, now seen corresponding path program 1 times [2024-11-19 00:37:06,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:37:06,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622201857] [2024-11-19 00:37:06,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:37:06,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:37:06,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:37:06,660 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:37:06,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:37:06,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622201857] [2024-11-19 00:37:06,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622201857] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:37:06,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:37:06,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 00:37:06,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376179509] [2024-11-19 00:37:06,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:37:06,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 00:37:06,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:37:06,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 00:37:06,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 00:37:06,664 INFO L87 Difference]: Start difference. First operand 548 states and 815 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:37:06,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:37:06,758 INFO L93 Difference]: Finished difference Result 1128 states and 1678 transitions. [2024-11-19 00:37:06,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 00:37:06,759 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 153 [2024-11-19 00:37:06,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:37:06,762 INFO L225 Difference]: With dead ends: 1128 [2024-11-19 00:37:06,762 INFO L226 Difference]: Without dead ends: 583 [2024-11-19 00:37:06,765 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 [2024-11-19 00:37:06,765 INFO L432 NwaCegarLoop]: 170 mSDtfsCounter, 78 mSDsluCounter, 472 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 642 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 [2024-11-19 00:37:06,766 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 642 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 00:37:06,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2024-11-19 00:37:06,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 543. [2024-11-19 00:37:06,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 482 states have (on average 1.4315352697095436) internal successors, (690), 484 states have internal predecessors, (690), 56 states have call successors, (56), 4 states have call predecessors, (56), 4 states have return successors, (56), 54 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-19 00:37:06,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 802 transitions. [2024-11-19 00:37:06,797 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 802 transitions. Word has length 153 [2024-11-19 00:37:06,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:37:06,797 INFO L471 AbstractCegarLoop]: Abstraction has 543 states and 802 transitions. [2024-11-19 00:37:06,797 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:37:06,797 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 802 transitions. [2024-11-19 00:37:06,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-19 00:37:06,799 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:37:06,799 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:37:06,800 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 00:37:06,800 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:37:06,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:37:06,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1542718732, now seen corresponding path program 1 times [2024-11-19 00:37:06,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:37:06,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701496253] [2024-11-19 00:37:06,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:37:06,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:37:06,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:37:07,918 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:37:07,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:37:07,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701496253] [2024-11-19 00:37:07,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701496253] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:37:07,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:37:07,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 00:37:07,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140445752] [2024-11-19 00:37:07,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:37:07,920 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 00:37:07,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:37:07,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 00:37:07,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-19 00:37:07,921 INFO L87 Difference]: Start difference. First operand 543 states and 802 transitions. Second operand has 9 states, 7 states have (on average 8.714285714285714) internal successors, (61), 9 states have internal predecessors, (61), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-19 00:37:08,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:37:08,427 INFO L93 Difference]: Finished difference Result 1279 states and 1887 transitions. [2024-11-19 00:37:08,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 00:37:08,428 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 8.714285714285714) internal successors, (61), 9 states have internal predecessors, (61), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 153 [2024-11-19 00:37:08,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:37:08,432 INFO L225 Difference]: With dead ends: 1279 [2024-11-19 00:37:08,432 INFO L226 Difference]: Without dead ends: 739 [2024-11-19 00:37:08,433 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-19 00:37:08,434 INFO L432 NwaCegarLoop]: 244 mSDtfsCounter, 110 mSDsluCounter, 1265 mSDsCounter, 0 mSdLazyCounter, 582 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 1509 SdHoareTripleChecker+Invalid, 582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 00:37:08,434 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 1509 Invalid, 582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 582 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 00:37:08,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 739 states. [2024-11-19 00:37:08,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 739 to 611. [2024-11-19 00:37:08,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 611 states, 550 states have (on average 1.4454545454545455) internal successors, (795), 552 states have internal predecessors, (795), 56 states have call successors, (56), 4 states have call predecessors, (56), 4 states have return successors, (56), 54 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-19 00:37:08,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 907 transitions. [2024-11-19 00:37:08,470 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 907 transitions. Word has length 153 [2024-11-19 00:37:08,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:37:08,471 INFO L471 AbstractCegarLoop]: Abstraction has 611 states and 907 transitions. [2024-11-19 00:37:08,471 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 8.714285714285714) internal successors, (61), 9 states have internal predecessors, (61), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-19 00:37:08,471 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 907 transitions. [2024-11-19 00:37:08,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-19 00:37:08,473 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:37:08,473 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:37:08,473 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-19 00:37:08,473 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:37:08,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:37:08,474 INFO L85 PathProgramCache]: Analyzing trace with hash -2129524746, now seen corresponding path program 1 times [2024-11-19 00:37:08,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:37:08,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152184058] [2024-11-19 00:37:08,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:37:08,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:37:08,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:37:09,366 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:37:09,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:37:09,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152184058] [2024-11-19 00:37:09,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152184058] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:37:09,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:37:09,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 00:37:09,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794115307] [2024-11-19 00:37:09,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:37:09,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 00:37:09,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:37:09,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 00:37:09,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 00:37:09,369 INFO L87 Difference]: Start difference. First operand 611 states and 907 transitions. Second operand has 7 states, 5 states have (on average 12.2) internal successors, (61), 7 states have internal predecessors, (61), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-19 00:37:09,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:37:09,753 INFO L93 Difference]: Finished difference Result 1309 states and 1930 transitions. [2024-11-19 00:37:09,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 00:37:09,753 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 12.2) internal successors, (61), 7 states have internal predecessors, (61), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 153 [2024-11-19 00:37:09,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:37:09,757 INFO L225 Difference]: With dead ends: 1309 [2024-11-19 00:37:09,757 INFO L226 Difference]: Without dead ends: 701 [2024-11-19 00:37:09,758 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-19 00:37:09,759 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 122 mSDsluCounter, 685 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 866 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 00:37:09,759 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 866 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 00:37:09,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 701 states. [2024-11-19 00:37:09,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 701 to 680. [2024-11-19 00:37:09,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 680 states, 599 states have (on average 1.4106844741235391) internal successors, (845), 602 states have internal predecessors, (845), 73 states have call successors, (73), 7 states have call predecessors, (73), 7 states have return successors, (73), 70 states have call predecessors, (73), 73 states have call successors, (73) [2024-11-19 00:37:09,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 680 states to 680 states and 991 transitions. [2024-11-19 00:37:09,803 INFO L78 Accepts]: Start accepts. Automaton has 680 states and 991 transitions. Word has length 153 [2024-11-19 00:37:09,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:37:09,804 INFO L471 AbstractCegarLoop]: Abstraction has 680 states and 991 transitions. [2024-11-19 00:37:09,804 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 12.2) internal successors, (61), 7 states have internal predecessors, (61), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-19 00:37:09,805 INFO L276 IsEmpty]: Start isEmpty. Operand 680 states and 991 transitions. [2024-11-19 00:37:09,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-19 00:37:09,807 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:37:09,807 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:37:09,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-19 00:37:09,807 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:37:09,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:37:09,808 INFO L85 PathProgramCache]: Analyzing trace with hash 788021926, now seen corresponding path program 1 times [2024-11-19 00:37:09,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:37:09,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859927101] [2024-11-19 00:37:09,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:37:09,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:37:09,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:37:11,132 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:37:11,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:37:11,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859927101] [2024-11-19 00:37:11,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859927101] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:37:11,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:37:11,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-19 00:37:11,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394647064] [2024-11-19 00:37:11,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:37:11,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-19 00:37:11,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:37:11,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-19 00:37:11,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-19 00:37:11,137 INFO L87 Difference]: Start difference. First operand 680 states and 991 transitions. Second operand has 12 states, 10 states have (on average 6.1) internal successors, (61), 12 states have internal predecessors, (61), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-19 00:37:12,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:37:12,494 INFO L93 Difference]: Finished difference Result 1626 states and 2352 transitions. [2024-11-19 00:37:12,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-19 00:37:12,495 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 6.1) internal successors, (61), 12 states have internal predecessors, (61), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 153 [2024-11-19 00:37:12,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:37:12,499 INFO L225 Difference]: With dead ends: 1626 [2024-11-19 00:37:12,499 INFO L226 Difference]: Without dead ends: 949 [2024-11-19 00:37:12,501 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=126, Invalid=426, Unknown=0, NotChecked=0, Total=552 [2024-11-19 00:37:12,502 INFO L432 NwaCegarLoop]: 309 mSDtfsCounter, 733 mSDsluCounter, 1904 mSDsCounter, 0 mSdLazyCounter, 1220 mSolverCounterSat, 151 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 733 SdHoareTripleChecker+Valid, 2213 SdHoareTripleChecker+Invalid, 1371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 151 IncrementalHoareTripleChecker+Valid, 1220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-19 00:37:12,502 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [733 Valid, 2213 Invalid, 1371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [151 Valid, 1220 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-19 00:37:12,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 949 states. [2024-11-19 00:37:12,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 949 to 676. [2024-11-19 00:37:12,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 676 states, 595 states have (on average 1.4067226890756304) internal successors, (837), 598 states have internal predecessors, (837), 73 states have call successors, (73), 7 states have call predecessors, (73), 7 states have return successors, (73), 70 states have call predecessors, (73), 73 states have call successors, (73) [2024-11-19 00:37:12,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 676 states to 676 states and 983 transitions. [2024-11-19 00:37:12,549 INFO L78 Accepts]: Start accepts. Automaton has 676 states and 983 transitions. Word has length 153 [2024-11-19 00:37:12,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:37:12,550 INFO L471 AbstractCegarLoop]: Abstraction has 676 states and 983 transitions. [2024-11-19 00:37:12,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 6.1) internal successors, (61), 12 states have internal predecessors, (61), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-19 00:37:12,550 INFO L276 IsEmpty]: Start isEmpty. Operand 676 states and 983 transitions. [2024-11-19 00:37:12,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-19 00:37:12,552 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:37:12,552 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:37:12,552 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-19 00:37:12,553 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:37:12,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:37:12,553 INFO L85 PathProgramCache]: Analyzing trace with hash -1078647766, now seen corresponding path program 1 times [2024-11-19 00:37:12,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:37:12,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013332807] [2024-11-19 00:37:12,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:37:12,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:37:12,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:37:14,345 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:37:14,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:37:14,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013332807] [2024-11-19 00:37:14,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013332807] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:37:14,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:37:14,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-19 00:37:14,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477397993] [2024-11-19 00:37:14,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:37:14,346 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-19 00:37:14,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:37:14,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-19 00:37:14,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-19 00:37:14,348 INFO L87 Difference]: Start difference. First operand 676 states and 983 transitions. Second operand has 13 states, 11 states have (on average 5.545454545454546) internal successors, (61), 13 states have internal predecessors, (61), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-19 00:37:17,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:37:17,622 INFO L93 Difference]: Finished difference Result 1600 states and 2315 transitions. [2024-11-19 00:37:17,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-19 00:37:17,623 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 5.545454545454546) internal successors, (61), 13 states have internal predecessors, (61), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 153 [2024-11-19 00:37:17,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:37:17,631 INFO L225 Difference]: With dead ends: 1600 [2024-11-19 00:37:17,633 INFO L226 Difference]: Without dead ends: 927 [2024-11-19 00:37:17,636 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=142, Invalid=508, Unknown=0, NotChecked=0, Total=650 [2024-11-19 00:37:17,637 INFO L432 NwaCegarLoop]: 298 mSDtfsCounter, 696 mSDsluCounter, 2179 mSDsCounter, 0 mSdLazyCounter, 1350 mSolverCounterSat, 203 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 696 SdHoareTripleChecker+Valid, 2477 SdHoareTripleChecker+Invalid, 1553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 203 IncrementalHoareTripleChecker+Valid, 1350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-19 00:37:17,637 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [696 Valid, 2477 Invalid, 1553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [203 Valid, 1350 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-19 00:37:17,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 927 states. [2024-11-19 00:37:17,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 927 to 674. [2024-11-19 00:37:17,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 674 states, 593 states have (on average 1.4047217537942664) internal successors, (833), 596 states have internal predecessors, (833), 73 states have call successors, (73), 7 states have call predecessors, (73), 7 states have return successors, (73), 70 states have call predecessors, (73), 73 states have call successors, (73) [2024-11-19 00:37:17,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 674 states to 674 states and 979 transitions. [2024-11-19 00:37:17,689 INFO L78 Accepts]: Start accepts. Automaton has 674 states and 979 transitions. Word has length 153 [2024-11-19 00:37:17,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:37:17,690 INFO L471 AbstractCegarLoop]: Abstraction has 674 states and 979 transitions. [2024-11-19 00:37:17,690 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 5.545454545454546) internal successors, (61), 13 states have internal predecessors, (61), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-19 00:37:17,690 INFO L276 IsEmpty]: Start isEmpty. Operand 674 states and 979 transitions. [2024-11-19 00:37:17,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-19 00:37:17,692 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:37:17,692 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:37:17,692 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-19 00:37:17,692 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:37:17,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:37:17,693 INFO L85 PathProgramCache]: Analyzing trace with hash -2052191822, now seen corresponding path program 1 times [2024-11-19 00:37:17,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:37:17,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344605509] [2024-11-19 00:37:17,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:37:17,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:37:17,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:37:18,265 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:37:18,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:37:18,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344605509] [2024-11-19 00:37:18,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344605509] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:37:18,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:37:18,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 00:37:18,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100163527] [2024-11-19 00:37:18,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:37:18,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 00:37:18,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:37:18,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 00:37:18,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 00:37:18,268 INFO L87 Difference]: Start difference. First operand 674 states and 979 transitions. Second operand has 6 states, 5 states have (on average 12.2) internal successors, (61), 6 states have internal predecessors, (61), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-19 00:37:18,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:37:18,546 INFO L93 Difference]: Finished difference Result 1507 states and 2178 transitions. [2024-11-19 00:37:18,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 00:37:18,547 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.2) internal successors, (61), 6 states have internal predecessors, (61), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 153 [2024-11-19 00:37:18,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:37:18,552 INFO L225 Difference]: With dead ends: 1507 [2024-11-19 00:37:18,553 INFO L226 Difference]: Without dead ends: 836 [2024-11-19 00:37:18,554 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-19 00:37:18,555 INFO L432 NwaCegarLoop]: 262 mSDtfsCounter, 131 mSDsluCounter, 772 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 1034 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 00:37:18,555 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 1034 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 00:37:18,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 836 states. [2024-11-19 00:37:18,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 836 to 685. [2024-11-19 00:37:18,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 685 states, 600 states have (on average 1.4) internal successors, (840), 603 states have internal predecessors, (840), 77 states have call successors, (77), 7 states have call predecessors, (77), 7 states have return successors, (77), 74 states have call predecessors, (77), 77 states have call successors, (77) [2024-11-19 00:37:18,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 685 states to 685 states and 994 transitions. [2024-11-19 00:37:18,605 INFO L78 Accepts]: Start accepts. Automaton has 685 states and 994 transitions. Word has length 153 [2024-11-19 00:37:18,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:37:18,606 INFO L471 AbstractCegarLoop]: Abstraction has 685 states and 994 transitions. [2024-11-19 00:37:18,607 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.2) internal successors, (61), 6 states have internal predecessors, (61), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-19 00:37:18,607 INFO L276 IsEmpty]: Start isEmpty. Operand 685 states and 994 transitions. [2024-11-19 00:37:18,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-19 00:37:18,609 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:37:18,609 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:37:18,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-19 00:37:18,610 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:37:18,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:37:18,610 INFO L85 PathProgramCache]: Analyzing trace with hash -1990152208, now seen corresponding path program 1 times [2024-11-19 00:37:18,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:37:18,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15110538] [2024-11-19 00:37:18,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:37:18,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:37:18,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:37:19,712 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:37:19,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:37:19,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15110538] [2024-11-19 00:37:19,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15110538] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:37:19,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:37:19,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-19 00:37:19,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320101974] [2024-11-19 00:37:19,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:37:19,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 00:37:19,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:37:19,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 00:37:19,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-19 00:37:19,716 INFO L87 Difference]: Start difference. First operand 685 states and 994 transitions. Second operand has 10 states, 7 states have (on average 8.714285714285714) internal successors, (61), 10 states have internal predecessors, (61), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-19 00:37:20,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:37:20,214 INFO L93 Difference]: Finished difference Result 1517 states and 2199 transitions. [2024-11-19 00:37:20,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 00:37:20,214 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 7 states have (on average 8.714285714285714) internal successors, (61), 10 states have internal predecessors, (61), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) Word has length 153 [2024-11-19 00:37:20,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:37:20,219 INFO L225 Difference]: With dead ends: 1517 [2024-11-19 00:37:20,219 INFO L226 Difference]: Without dead ends: 835 [2024-11-19 00:37:20,220 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-19 00:37:20,221 INFO L432 NwaCegarLoop]: 248 mSDtfsCounter, 109 mSDsluCounter, 1481 mSDsCounter, 0 mSdLazyCounter, 666 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 1729 SdHoareTripleChecker+Invalid, 666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 666 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 00:37:20,221 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 1729 Invalid, 666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 666 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 00:37:20,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 835 states. [2024-11-19 00:37:20,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 835 to 768. [2024-11-19 00:37:20,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 768 states, 673 states have (on average 1.3997028231797919) internal successors, (942), 677 states have internal predecessors, (942), 86 states have call successors, (86), 8 states have call predecessors, (86), 8 states have return successors, (86), 82 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-19 00:37:20,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 768 states to 768 states and 1114 transitions. [2024-11-19 00:37:20,265 INFO L78 Accepts]: Start accepts. Automaton has 768 states and 1114 transitions. Word has length 153 [2024-11-19 00:37:20,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:37:20,265 INFO L471 AbstractCegarLoop]: Abstraction has 768 states and 1114 transitions. [2024-11-19 00:37:20,266 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 7 states have (on average 8.714285714285714) internal successors, (61), 10 states have internal predecessors, (61), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-19 00:37:20,266 INFO L276 IsEmpty]: Start isEmpty. Operand 768 states and 1114 transitions. [2024-11-19 00:37:20,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-19 00:37:20,267 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:37:20,267 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:37:20,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-19 00:37:20,267 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:37:20,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:37:20,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1718009074, now seen corresponding path program 1 times [2024-11-19 00:37:20,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:37:20,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565645698] [2024-11-19 00:37:20,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:37:20,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:37:20,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:37:21,329 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:37:21,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:37:21,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565645698] [2024-11-19 00:37:21,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565645698] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:37:21,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:37:21,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-19 00:37:21,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465613004] [2024-11-19 00:37:21,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:37:21,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-19 00:37:21,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:37:21,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-19 00:37:21,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-19 00:37:21,333 INFO L87 Difference]: Start difference. First operand 768 states and 1114 transitions. Second operand has 11 states, 7 states have (on average 8.714285714285714) internal successors, (61), 11 states have internal predecessors, (61), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 5 states have call successors, (19) [2024-11-19 00:37:21,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:37:21,952 INFO L93 Difference]: Finished difference Result 1600 states and 2317 transitions. [2024-11-19 00:37:21,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-19 00:37:21,953 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 7 states have (on average 8.714285714285714) internal successors, (61), 11 states have internal predecessors, (61), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 5 states have call successors, (19) Word has length 153 [2024-11-19 00:37:21,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:37:21,958 INFO L225 Difference]: With dead ends: 1600 [2024-11-19 00:37:21,958 INFO L226 Difference]: Without dead ends: 835 [2024-11-19 00:37:21,960 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-19 00:37:21,961 INFO L432 NwaCegarLoop]: 273 mSDtfsCounter, 107 mSDsluCounter, 1833 mSDsCounter, 0 mSdLazyCounter, 790 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 2106 SdHoareTripleChecker+Invalid, 790 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 790 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-19 00:37:21,962 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 2106 Invalid, 790 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 790 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-19 00:37:21,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 835 states. [2024-11-19 00:37:22,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 835 to 767. [2024-11-19 00:37:22,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 767 states, 672 states have (on average 1.3958333333333333) internal successors, (938), 676 states have internal predecessors, (938), 86 states have call successors, (86), 8 states have call predecessors, (86), 8 states have return successors, (86), 82 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-19 00:37:22,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 767 states to 767 states and 1110 transitions. [2024-11-19 00:37:22,008 INFO L78 Accepts]: Start accepts. Automaton has 767 states and 1110 transitions. Word has length 153 [2024-11-19 00:37:22,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:37:22,008 INFO L471 AbstractCegarLoop]: Abstraction has 767 states and 1110 transitions. [2024-11-19 00:37:22,009 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 7 states have (on average 8.714285714285714) internal successors, (61), 11 states have internal predecessors, (61), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 5 states have call successors, (19) [2024-11-19 00:37:22,009 INFO L276 IsEmpty]: Start isEmpty. Operand 767 states and 1110 transitions. [2024-11-19 00:37:22,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-19 00:37:22,010 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:37:22,011 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:37:22,011 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-19 00:37:22,011 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:37:22,011 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:37:22,011 INFO L85 PathProgramCache]: Analyzing trace with hash 412170648, now seen corresponding path program 1 times [2024-11-19 00:37:22,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:37:22,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745982420] [2024-11-19 00:37:22,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:37:22,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:37:22,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:37:22,123 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:37:22,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:37:22,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745982420] [2024-11-19 00:37:22,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745982420] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:37:22,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:37:22,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 00:37:22,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617584412] [2024-11-19 00:37:22,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:37:22,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 00:37:22,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:37:22,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 00:37:22,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 00:37:22,125 INFO L87 Difference]: Start difference. First operand 767 states and 1110 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:37:22,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:37:22,223 INFO L93 Difference]: Finished difference Result 1531 states and 2216 transitions. [2024-11-19 00:37:22,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 00:37:22,224 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 153 [2024-11-19 00:37:22,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:37:22,228 INFO L225 Difference]: With dead ends: 1531 [2024-11-19 00:37:22,228 INFO L226 Difference]: Without dead ends: 767 [2024-11-19 00:37:22,230 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 [2024-11-19 00:37:22,230 INFO L432 NwaCegarLoop]: 219 mSDtfsCounter, 81 mSDsluCounter, 567 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 786 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:37:22,231 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 786 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 00:37:22,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 767 states. [2024-11-19 00:37:22,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 767 to 765. [2024-11-19 00:37:22,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 765 states, 670 states have (on average 1.3940298507462687) internal successors, (934), 674 states have internal predecessors, (934), 86 states have call successors, (86), 8 states have call predecessors, (86), 8 states have return successors, (86), 82 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-19 00:37:22,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 765 states to 765 states and 1106 transitions. [2024-11-19 00:37:22,294 INFO L78 Accepts]: Start accepts. Automaton has 765 states and 1106 transitions. Word has length 153 [2024-11-19 00:37:22,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:37:22,295 INFO L471 AbstractCegarLoop]: Abstraction has 765 states and 1106 transitions. [2024-11-19 00:37:22,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:37:22,295 INFO L276 IsEmpty]: Start isEmpty. Operand 765 states and 1106 transitions. [2024-11-19 00:37:22,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-19 00:37:22,296 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:37:22,296 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:37:22,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-19 00:37:22,297 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:37:22,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:37:22,297 INFO L85 PathProgramCache]: Analyzing trace with hash 254682777, now seen corresponding path program 1 times [2024-11-19 00:37:22,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:37:22,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801943604] [2024-11-19 00:37:22,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:37:22,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:37:22,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:37:22,363 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:37:22,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:37:22,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801943604] [2024-11-19 00:37:22,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801943604] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:37:22,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:37:22,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 00:37:22,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780310358] [2024-11-19 00:37:22,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:37:22,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 00:37:22,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:37:22,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 00:37:22,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 00:37:22,366 INFO L87 Difference]: Start difference. First operand 765 states and 1106 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:37:22,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:37:22,418 INFO L93 Difference]: Finished difference Result 1517 states and 2193 transitions. [2024-11-19 00:37:22,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 00:37:22,419 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 154 [2024-11-19 00:37:22,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:37:22,424 INFO L225 Difference]: With dead ends: 1517 [2024-11-19 00:37:22,424 INFO L226 Difference]: Without dead ends: 755 [2024-11-19 00:37:22,426 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 00:37:22,427 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 0 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 00:37:22,427 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 344 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 00:37:22,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 755 states. [2024-11-19 00:37:22,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 755 to 755. [2024-11-19 00:37:22,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 755 states, 660 states have (on average 1.387878787878788) internal successors, (916), 664 states have internal predecessors, (916), 86 states have call successors, (86), 8 states have call predecessors, (86), 8 states have return successors, (86), 82 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-19 00:37:22,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 755 states to 755 states and 1088 transitions. [2024-11-19 00:37:22,478 INFO L78 Accepts]: Start accepts. Automaton has 755 states and 1088 transitions. Word has length 154 [2024-11-19 00:37:22,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:37:22,479 INFO L471 AbstractCegarLoop]: Abstraction has 755 states and 1088 transitions. [2024-11-19 00:37:22,479 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:37:22,479 INFO L276 IsEmpty]: Start isEmpty. Operand 755 states and 1088 transitions. [2024-11-19 00:37:22,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-19 00:37:22,480 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:37:22,480 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:37:22,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-19 00:37:22,481 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:37:22,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:37:22,481 INFO L85 PathProgramCache]: Analyzing trace with hash -301787730, now seen corresponding path program 1 times [2024-11-19 00:37:22,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:37:22,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112223403] [2024-11-19 00:37:22,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:37:22,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:37:22,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:37:24,434 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:37:24,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:37:24,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112223403] [2024-11-19 00:37:24,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112223403] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:37:24,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:37:24,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-19 00:37:24,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334706615] [2024-11-19 00:37:24,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:37:24,436 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-19 00:37:24,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:37:24,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-19 00:37:24,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2024-11-19 00:37:24,436 INFO L87 Difference]: Start difference. First operand 755 states and 1088 transitions. Second operand has 18 states, 15 states have (on average 4.2) internal successors, (63), 18 states have internal predecessors, (63), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-19 00:37:26,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:37:26,831 INFO L93 Difference]: Finished difference Result 1886 states and 2691 transitions. [2024-11-19 00:37:26,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-11-19 00:37:26,832 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 15 states have (on average 4.2) internal successors, (63), 18 states have internal predecessors, (63), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) Word has length 155 [2024-11-19 00:37:26,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:37:26,839 INFO L225 Difference]: With dead ends: 1886 [2024-11-19 00:37:26,839 INFO L226 Difference]: Without dead ends: 1134 [2024-11-19 00:37:26,842 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 515 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=326, Invalid=2026, Unknown=0, NotChecked=0, Total=2352 [2024-11-19 00:37:26,842 INFO L432 NwaCegarLoop]: 237 mSDtfsCounter, 1431 mSDsluCounter, 2254 mSDsCounter, 0 mSdLazyCounter, 1573 mSolverCounterSat, 271 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1431 SdHoareTripleChecker+Valid, 2491 SdHoareTripleChecker+Invalid, 1844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 271 IncrementalHoareTripleChecker+Valid, 1573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-19 00:37:26,843 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1431 Valid, 2491 Invalid, 1844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [271 Valid, 1573 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-19 00:37:26,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1134 states. [2024-11-19 00:37:26,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1134 to 936. [2024-11-19 00:37:26,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 936 states, 805 states have (on average 1.3577639751552795) internal successors, (1093), 811 states have internal predecessors, (1093), 116 states have call successors, (116), 14 states have call predecessors, (116), 14 states have return successors, (116), 110 states have call predecessors, (116), 116 states have call successors, (116) [2024-11-19 00:37:26,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 936 states to 936 states and 1325 transitions. [2024-11-19 00:37:26,922 INFO L78 Accepts]: Start accepts. Automaton has 936 states and 1325 transitions. Word has length 155 [2024-11-19 00:37:26,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:37:26,923 INFO L471 AbstractCegarLoop]: Abstraction has 936 states and 1325 transitions. [2024-11-19 00:37:26,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 15 states have (on average 4.2) internal successors, (63), 18 states have internal predecessors, (63), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-19 00:37:26,923 INFO L276 IsEmpty]: Start isEmpty. Operand 936 states and 1325 transitions. [2024-11-19 00:37:26,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-19 00:37:26,925 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:37:26,925 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:37:26,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-19 00:37:26,925 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:37:26,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:37:26,926 INFO L85 PathProgramCache]: Analyzing trace with hash -239748116, now seen corresponding path program 1 times [2024-11-19 00:37:26,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:37:26,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873420889] [2024-11-19 00:37:26,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:37:26,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:37:26,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:37:28,360 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:37:28,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:37:28,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873420889] [2024-11-19 00:37:28,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873420889] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:37:28,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:37:28,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-19 00:37:28,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579172923] [2024-11-19 00:37:28,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:37:28,361 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-19 00:37:28,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:37:28,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-19 00:37:28,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2024-11-19 00:37:28,362 INFO L87 Difference]: Start difference. First operand 936 states and 1325 transitions. Second operand has 19 states, 15 states have (on average 4.2) internal successors, (63), 19 states have internal predecessors, (63), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 5 states have call successors, (19) [2024-11-19 00:37:30,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:37:30,086 INFO L93 Difference]: Finished difference Result 2117 states and 2980 transitions. [2024-11-19 00:37:30,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-19 00:37:30,087 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 15 states have (on average 4.2) internal successors, (63), 19 states have internal predecessors, (63), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 5 states have call successors, (19) Word has length 155 [2024-11-19 00:37:30,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:37:30,093 INFO L225 Difference]: With dead ends: 2117 [2024-11-19 00:37:30,094 INFO L226 Difference]: Without dead ends: 1184 [2024-11-19 00:37:30,096 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 277 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=259, Invalid=1301, Unknown=0, NotChecked=0, Total=1560 [2024-11-19 00:37:30,096 INFO L432 NwaCegarLoop]: 250 mSDtfsCounter, 1133 mSDsluCounter, 2723 mSDsCounter, 0 mSdLazyCounter, 2196 mSolverCounterSat, 215 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1133 SdHoareTripleChecker+Valid, 2973 SdHoareTripleChecker+Invalid, 2411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 215 IncrementalHoareTripleChecker+Valid, 2196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-19 00:37:30,097 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1133 Valid, 2973 Invalid, 2411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [215 Valid, 2196 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-19 00:37:30,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1184 states. [2024-11-19 00:37:30,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1184 to 979. [2024-11-19 00:37:30,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 979 states, 832 states have (on average 1.3485576923076923) internal successors, (1122), 839 states have internal predecessors, (1122), 129 states have call successors, (129), 17 states have call predecessors, (129), 17 states have return successors, (129), 122 states have call predecessors, (129), 129 states have call successors, (129) [2024-11-19 00:37:30,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 979 states to 979 states and 1380 transitions. [2024-11-19 00:37:30,194 INFO L78 Accepts]: Start accepts. Automaton has 979 states and 1380 transitions. Word has length 155 [2024-11-19 00:37:30,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:37:30,195 INFO L471 AbstractCegarLoop]: Abstraction has 979 states and 1380 transitions. [2024-11-19 00:37:30,196 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 15 states have (on average 4.2) internal successors, (63), 19 states have internal predecessors, (63), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 5 states have call successors, (19) [2024-11-19 00:37:30,196 INFO L276 IsEmpty]: Start isEmpty. Operand 979 states and 1380 transitions. [2024-11-19 00:37:30,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-19 00:37:30,197 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:37:30,197 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:37:30,197 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-19 00:37:30,197 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:37:30,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:37:30,198 INFO L85 PathProgramCache]: Analyzing trace with hash 1412848974, now seen corresponding path program 1 times [2024-11-19 00:37:30,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:37:30,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31564896] [2024-11-19 00:37:30,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:37:30,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:37:30,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:37:31,941 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:37:31,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:37:31,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31564896] [2024-11-19 00:37:31,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31564896] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:37:31,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:37:31,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-11-19 00:37:31,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784462699] [2024-11-19 00:37:31,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:37:31,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-19 00:37:31,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:37:31,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-19 00:37:31,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2024-11-19 00:37:31,943 INFO L87 Difference]: Start difference. First operand 979 states and 1380 transitions. Second operand has 21 states, 18 states have (on average 3.5) internal successors, (63), 21 states have internal predecessors, (63), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-19 00:37:34,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:37:34,165 INFO L93 Difference]: Finished difference Result 2283 states and 3208 transitions. [2024-11-19 00:37:34,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-19 00:37:34,166 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 18 states have (on average 3.5) internal successors, (63), 21 states have internal predecessors, (63), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) Word has length 155 [2024-11-19 00:37:34,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:37:34,175 INFO L225 Difference]: With dead ends: 2283 [2024-11-19 00:37:34,175 INFO L226 Difference]: Without dead ends: 1347 [2024-11-19 00:37:34,178 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 402 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=324, Invalid=1932, Unknown=0, NotChecked=0, Total=2256 [2024-11-19 00:37:34,179 INFO L432 NwaCegarLoop]: 323 mSDtfsCounter, 676 mSDsluCounter, 4404 mSDsCounter, 0 mSdLazyCounter, 2960 mSolverCounterSat, 161 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 676 SdHoareTripleChecker+Valid, 4727 SdHoareTripleChecker+Invalid, 3121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 161 IncrementalHoareTripleChecker+Valid, 2960 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-19 00:37:34,179 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [676 Valid, 4727 Invalid, 3121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [161 Valid, 2960 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-19 00:37:34,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1347 states. [2024-11-19 00:37:34,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1347 to 1065. [2024-11-19 00:37:34,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1065 states, 918 states have (on average 1.3540305010893245) internal successors, (1243), 925 states have internal predecessors, (1243), 129 states have call successors, (129), 17 states have call predecessors, (129), 17 states have return successors, (129), 122 states have call predecessors, (129), 129 states have call successors, (129) [2024-11-19 00:37:34,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1065 states to 1065 states and 1501 transitions. [2024-11-19 00:37:34,288 INFO L78 Accepts]: Start accepts. Automaton has 1065 states and 1501 transitions. Word has length 155 [2024-11-19 00:37:34,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:37:34,289 INFO L471 AbstractCegarLoop]: Abstraction has 1065 states and 1501 transitions. [2024-11-19 00:37:34,289 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 18 states have (on average 3.5) internal successors, (63), 21 states have internal predecessors, (63), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-19 00:37:34,289 INFO L276 IsEmpty]: Start isEmpty. Operand 1065 states and 1501 transitions. [2024-11-19 00:37:34,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-19 00:37:34,291 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:37:34,291 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:37:34,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-19 00:37:34,291 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:37:34,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:37:34,292 INFO L85 PathProgramCache]: Analyzing trace with hash 826042960, now seen corresponding path program 1 times [2024-11-19 00:37:34,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:37:34,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648393089] [2024-11-19 00:37:34,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:37:34,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:37:34,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:37:34,578 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:37:34,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:37:34,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648393089] [2024-11-19 00:37:34,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648393089] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:37:34,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:37:34,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 00:37:34,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704789639] [2024-11-19 00:37:34,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:37:34,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 00:37:34,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:37:34,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 00:37:34,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 00:37:34,581 INFO L87 Difference]: Start difference. First operand 1065 states and 1501 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:37:34,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:37:34,847 INFO L93 Difference]: Finished difference Result 2343 states and 3298 transitions. [2024-11-19 00:37:34,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 00:37:34,847 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 155 [2024-11-19 00:37:34,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:37:34,853 INFO L225 Difference]: With dead ends: 2343 [2024-11-19 00:37:34,853 INFO L226 Difference]: Without dead ends: 1281 [2024-11-19 00:37:34,856 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 [2024-11-19 00:37:34,857 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 100 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:37:34,857 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 569 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 00:37:34,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1281 states. [2024-11-19 00:37:34,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1281 to 1065. [2024-11-19 00:37:34,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1065 states, 918 states have (on average 1.3496732026143792) internal successors, (1239), 925 states have internal predecessors, (1239), 129 states have call successors, (129), 17 states have call predecessors, (129), 17 states have return successors, (129), 122 states have call predecessors, (129), 129 states have call successors, (129) [2024-11-19 00:37:34,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1065 states to 1065 states and 1497 transitions. [2024-11-19 00:37:34,963 INFO L78 Accepts]: Start accepts. Automaton has 1065 states and 1497 transitions. Word has length 155 [2024-11-19 00:37:34,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:37:34,964 INFO L471 AbstractCegarLoop]: Abstraction has 1065 states and 1497 transitions. [2024-11-19 00:37:34,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:37:34,964 INFO L276 IsEmpty]: Start isEmpty. Operand 1065 states and 1497 transitions. [2024-11-19 00:37:34,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-19 00:37:34,966 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:37:34,966 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:37:34,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-19 00:37:34,967 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:37:34,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:37:34,968 INFO L85 PathProgramCache]: Analyzing trace with hash 903375884, now seen corresponding path program 1 times [2024-11-19 00:37:34,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:37:34,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220763920] [2024-11-19 00:37:34,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:37:34,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:37:35,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:37:35,420 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:37:35,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:37:35,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220763920] [2024-11-19 00:37:35,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220763920] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:37:35,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:37:35,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 00:37:35,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397657439] [2024-11-19 00:37:35,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:37:35,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 00:37:35,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:37:35,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 00:37:35,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 00:37:35,422 INFO L87 Difference]: Start difference. First operand 1065 states and 1497 transitions. Second operand has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-19 00:37:35,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:37:35,734 INFO L93 Difference]: Finished difference Result 2109 states and 2962 transitions. [2024-11-19 00:37:35,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 00:37:35,738 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 155 [2024-11-19 00:37:35,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:37:35,747 INFO L225 Difference]: With dead ends: 2109 [2024-11-19 00:37:35,748 INFO L226 Difference]: Without dead ends: 1047 [2024-11-19 00:37:35,750 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-19 00:37:35,751 INFO L432 NwaCegarLoop]: 164 mSDtfsCounter, 131 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 684 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 00:37:35,751 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 684 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 00:37:35,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1047 states. [2024-11-19 00:37:35,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1047 to 1044. [2024-11-19 00:37:35,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1044 states, 897 states have (on average 1.3444816053511706) internal successors, (1206), 904 states have internal predecessors, (1206), 129 states have call successors, (129), 17 states have call predecessors, (129), 17 states have return successors, (129), 122 states have call predecessors, (129), 129 states have call successors, (129) [2024-11-19 00:37:35,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1044 states to 1044 states and 1464 transitions. [2024-11-19 00:37:35,875 INFO L78 Accepts]: Start accepts. Automaton has 1044 states and 1464 transitions. Word has length 155 [2024-11-19 00:37:35,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:37:35,875 INFO L471 AbstractCegarLoop]: Abstraction has 1044 states and 1464 transitions. [2024-11-19 00:37:35,876 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-19 00:37:35,876 INFO L276 IsEmpty]: Start isEmpty. Operand 1044 states and 1464 transitions. [2024-11-19 00:37:35,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-19 00:37:35,877 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:37:35,877 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:37:35,878 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-19 00:37:35,878 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:37:35,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:37:35,878 INFO L85 PathProgramCache]: Analyzing trace with hash -1867503378, now seen corresponding path program 1 times [2024-11-19 00:37:35,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:37:35,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164728284] [2024-11-19 00:37:35,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:37:35,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:37:35,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:37:36,519 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:37:36,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:37:36,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164728284] [2024-11-19 00:37:36,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164728284] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:37:36,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:37:36,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 00:37:36,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580357581] [2024-11-19 00:37:36,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:37:36,520 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 00:37:36,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:37:36,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 00:37:36,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-19 00:37:36,521 INFO L87 Difference]: Start difference. First operand 1044 states and 1464 transitions. Second operand has 8 states, 7 states have (on average 9.0) internal successors, (63), 8 states have internal predecessors, (63), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-19 00:37:36,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:37:36,809 INFO L93 Difference]: Finished difference Result 1868 states and 2637 transitions. [2024-11-19 00:37:36,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-19 00:37:36,810 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.0) internal successors, (63), 8 states have internal predecessors, (63), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 155 [2024-11-19 00:37:36,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:37:36,817 INFO L225 Difference]: With dead ends: 1868 [2024-11-19 00:37:36,817 INFO L226 Difference]: Without dead ends: 1441 [2024-11-19 00:37:36,818 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-11-19 00:37:36,819 INFO L432 NwaCegarLoop]: 215 mSDtfsCounter, 124 mSDsluCounter, 990 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 1205 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 00:37:36,820 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 1205 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 00:37:36,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1441 states. [2024-11-19 00:37:36,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1441 to 1426. [2024-11-19 00:37:36,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1426 states, 1224 states have (on average 1.3513071895424837) internal successors, (1654), 1235 states have internal predecessors, (1654), 179 states have call successors, (179), 22 states have call predecessors, (179), 22 states have return successors, (179), 168 states have call predecessors, (179), 179 states have call successors, (179) [2024-11-19 00:37:36,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1426 states to 1426 states and 2012 transitions. [2024-11-19 00:37:36,941 INFO L78 Accepts]: Start accepts. Automaton has 1426 states and 2012 transitions. Word has length 155 [2024-11-19 00:37:36,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:37:36,941 INFO L471 AbstractCegarLoop]: Abstraction has 1426 states and 2012 transitions. [2024-11-19 00:37:36,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.0) internal successors, (63), 8 states have internal predecessors, (63), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-19 00:37:36,941 INFO L276 IsEmpty]: Start isEmpty. Operand 1426 states and 2012 transitions. [2024-11-19 00:37:36,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-19 00:37:36,943 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:37:36,943 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:37:36,943 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-19 00:37:36,943 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:37:36,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:37:36,944 INFO L85 PathProgramCache]: Analyzing trace with hash -1805463764, now seen corresponding path program 1 times [2024-11-19 00:37:36,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:37:36,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562394584] [2024-11-19 00:37:36,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:37:36,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:37:36,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:37:37,719 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:37:37,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:37:37,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562394584] [2024-11-19 00:37:37,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562394584] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:37:37,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:37:37,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-19 00:37:37,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599802320] [2024-11-19 00:37:37,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:37:37,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-19 00:37:37,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:37:37,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-19 00:37:37,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2024-11-19 00:37:37,721 INFO L87 Difference]: Start difference. First operand 1426 states and 2012 transitions. Second operand has 14 states, 14 states have (on average 4.5) internal successors, (63), 14 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:37:38,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:37:38,887 INFO L93 Difference]: Finished difference Result 3088 states and 4343 transitions. [2024-11-19 00:37:38,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-19 00:37:38,888 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.5) internal successors, (63), 14 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 155 [2024-11-19 00:37:38,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:37:38,895 INFO L225 Difference]: With dead ends: 3088 [2024-11-19 00:37:38,895 INFO L226 Difference]: Without dead ends: 1665 [2024-11-19 00:37:38,898 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=192, Invalid=564, Unknown=0, NotChecked=0, Total=756 [2024-11-19 00:37:38,899 INFO L432 NwaCegarLoop]: 324 mSDtfsCounter, 958 mSDsluCounter, 2168 mSDsCounter, 0 mSdLazyCounter, 1363 mSolverCounterSat, 184 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 958 SdHoareTripleChecker+Valid, 2492 SdHoareTripleChecker+Invalid, 1547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 184 IncrementalHoareTripleChecker+Valid, 1363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-19 00:37:38,899 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [958 Valid, 2492 Invalid, 1547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [184 Valid, 1363 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-19 00:37:38,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1665 states. [2024-11-19 00:37:39,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1665 to 1493. [2024-11-19 00:37:39,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1493 states, 1278 states have (on average 1.3482003129890454) internal successors, (1723), 1290 states have internal predecessors, (1723), 190 states have call successors, (190), 24 states have call predecessors, (190), 24 states have return successors, (190), 178 states have call predecessors, (190), 190 states have call successors, (190) [2024-11-19 00:37:39,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1493 states to 1493 states and 2103 transitions. [2024-11-19 00:37:39,063 INFO L78 Accepts]: Start accepts. Automaton has 1493 states and 2103 transitions. Word has length 155 [2024-11-19 00:37:39,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:37:39,064 INFO L471 AbstractCegarLoop]: Abstraction has 1493 states and 2103 transitions. [2024-11-19 00:37:39,064 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.5) internal successors, (63), 14 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:37:39,064 INFO L276 IsEmpty]: Start isEmpty. Operand 1493 states and 2103 transitions. [2024-11-19 00:37:39,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-19 00:37:39,065 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:37:39,065 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:37:39,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-19 00:37:39,066 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:37:39,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:37:39,066 INFO L85 PathProgramCache]: Analyzing trace with hash 926008138, now seen corresponding path program 1 times [2024-11-19 00:37:39,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:37:39,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449673088] [2024-11-19 00:37:39,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:37:39,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:37:39,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:37:39,768 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:37:39,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:37:39,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449673088] [2024-11-19 00:37:39,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449673088] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:37:39,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:37:39,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 00:37:39,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64796797] [2024-11-19 00:37:39,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:37:39,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 00:37:39,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:37:39,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 00:37:39,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 00:37:39,770 INFO L87 Difference]: Start difference. First operand 1493 states and 2103 transitions. Second operand has 7 states, 5 states have (on average 12.6) internal successors, (63), 7 states have internal predecessors, (63), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-19 00:37:40,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:37:40,102 INFO L93 Difference]: Finished difference Result 2978 states and 4195 transitions. [2024-11-19 00:37:40,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 00:37:40,103 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 12.6) internal successors, (63), 7 states have internal predecessors, (63), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 155 [2024-11-19 00:37:40,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:37:40,108 INFO L225 Difference]: With dead ends: 2978 [2024-11-19 00:37:40,108 INFO L226 Difference]: Without dead ends: 1488 [2024-11-19 00:37:40,110 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-19 00:37:40,111 INFO L432 NwaCegarLoop]: 275 mSDtfsCounter, 119 mSDsluCounter, 1012 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 1287 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 00:37:40,111 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 1287 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 00:37:40,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1488 states. [2024-11-19 00:37:40,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1488 to 1483. [2024-11-19 00:37:40,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1483 states, 1268 states have (on average 1.3446372239747635) internal successors, (1705), 1280 states have internal predecessors, (1705), 190 states have call successors, (190), 24 states have call predecessors, (190), 24 states have return successors, (190), 178 states have call predecessors, (190), 190 states have call successors, (190) [2024-11-19 00:37:40,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1483 states to 1483 states and 2085 transitions. [2024-11-19 00:37:40,269 INFO L78 Accepts]: Start accepts. Automaton has 1483 states and 2085 transitions. Word has length 155 [2024-11-19 00:37:40,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:37:40,270 INFO L471 AbstractCegarLoop]: Abstraction has 1483 states and 2085 transitions. [2024-11-19 00:37:40,270 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 12.6) internal successors, (63), 7 states have internal predecessors, (63), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-19 00:37:40,270 INFO L276 IsEmpty]: Start isEmpty. Operand 1483 states and 2085 transitions. [2024-11-19 00:37:40,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-19 00:37:40,271 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:37:40,271 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:37:40,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-19 00:37:40,271 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:37:40,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:37:40,272 INFO L85 PathProgramCache]: Analyzing trace with hash -940661554, now seen corresponding path program 1 times [2024-11-19 00:37:40,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:37:40,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265748984] [2024-11-19 00:37:40,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:37:40,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:37:40,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:37:41,114 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:37:41,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:37:41,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265748984] [2024-11-19 00:37:41,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265748984] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:37:41,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:37:41,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-19 00:37:41,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157900119] [2024-11-19 00:37:41,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:37:41,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-19 00:37:41,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:37:41,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-19 00:37:41,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=210, Unknown=0, NotChecked=0, Total=240 [2024-11-19 00:37:41,116 INFO L87 Difference]: Start difference. First operand 1483 states and 2085 transitions. Second operand has 16 states, 14 states have (on average 4.5) internal successors, (63), 16 states have internal predecessors, (63), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-19 00:37:41,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:37:41,796 INFO L93 Difference]: Finished difference Result 3008 states and 4220 transitions. [2024-11-19 00:37:41,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-19 00:37:41,796 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 4.5) internal successors, (63), 16 states have internal predecessors, (63), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 155 [2024-11-19 00:37:41,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:37:41,802 INFO L225 Difference]: With dead ends: 3008 [2024-11-19 00:37:41,803 INFO L226 Difference]: Without dead ends: 1528 [2024-11-19 00:37:41,805 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=486, Unknown=0, NotChecked=0, Total=552 [2024-11-19 00:37:41,806 INFO L432 NwaCegarLoop]: 276 mSDtfsCounter, 125 mSDsluCounter, 2819 mSDsCounter, 0 mSdLazyCounter, 1091 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 3095 SdHoareTripleChecker+Invalid, 1092 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1091 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-19 00:37:41,806 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 3095 Invalid, 1092 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1091 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-19 00:37:41,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1528 states. [2024-11-19 00:37:41,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1528 to 1368. [2024-11-19 00:37:41,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1368 states, 1170 states have (on average 1.3435897435897435) internal successors, (1572), 1180 states have internal predecessors, (1572), 174 states have call successors, (174), 23 states have call predecessors, (174), 23 states have return successors, (174), 164 states have call predecessors, (174), 174 states have call successors, (174) [2024-11-19 00:37:41,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1368 states to 1368 states and 1920 transitions. [2024-11-19 00:37:41,928 INFO L78 Accepts]: Start accepts. Automaton has 1368 states and 1920 transitions. Word has length 155 [2024-11-19 00:37:41,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:37:41,928 INFO L471 AbstractCegarLoop]: Abstraction has 1368 states and 1920 transitions. [2024-11-19 00:37:41,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 4.5) internal successors, (63), 16 states have internal predecessors, (63), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-19 00:37:41,929 INFO L276 IsEmpty]: Start isEmpty. Operand 1368 states and 1920 transitions. [2024-11-19 00:37:41,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-19 00:37:41,930 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:37:41,930 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:37:41,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-19 00:37:41,930 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:37:41,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:37:41,930 INFO L85 PathProgramCache]: Analyzing trace with hash -1869854258, now seen corresponding path program 1 times [2024-11-19 00:37:41,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:37:41,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183296319] [2024-11-19 00:37:41,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:37:41,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:37:41,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:37:42,827 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:37:42,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:37:42,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183296319] [2024-11-19 00:37:42,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183296319] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:37:42,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:37:42,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-19 00:37:42,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313731356] [2024-11-19 00:37:42,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:37:42,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-19 00:37:42,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:37:42,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-19 00:37:42,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2024-11-19 00:37:42,829 INFO L87 Difference]: Start difference. First operand 1368 states and 1920 transitions. Second operand has 15 states, 13 states have (on average 4.846153846153846) internal successors, (63), 15 states have internal predecessors, (63), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-19 00:37:43,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:37:43,413 INFO L93 Difference]: Finished difference Result 3028 states and 4255 transitions. [2024-11-19 00:37:43,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-19 00:37:43,414 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 4.846153846153846) internal successors, (63), 15 states have internal predecessors, (63), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 155 [2024-11-19 00:37:43,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:37:43,421 INFO L225 Difference]: With dead ends: 3028 [2024-11-19 00:37:43,421 INFO L226 Difference]: Without dead ends: 1663 [2024-11-19 00:37:43,423 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462 [2024-11-19 00:37:43,423 INFO L432 NwaCegarLoop]: 255 mSDtfsCounter, 123 mSDsluCounter, 2415 mSDsCounter, 0 mSdLazyCounter, 928 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 2670 SdHoareTripleChecker+Invalid, 928 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 928 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 00:37:43,424 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 2670 Invalid, 928 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 928 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 00:37:43,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1663 states. [2024-11-19 00:37:43,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1663 to 1653. [2024-11-19 00:37:43,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1653 states, 1419 states have (on average 1.3474277660324172) internal successors, (1912), 1432 states have internal predecessors, (1912), 207 states have call successors, (207), 26 states have call predecessors, (207), 26 states have return successors, (207), 194 states have call predecessors, (207), 207 states have call successors, (207) [2024-11-19 00:37:43,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1653 states to 1653 states and 2326 transitions. [2024-11-19 00:37:43,540 INFO L78 Accepts]: Start accepts. Automaton has 1653 states and 2326 transitions. Word has length 155 [2024-11-19 00:37:43,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:37:43,541 INFO L471 AbstractCegarLoop]: Abstraction has 1653 states and 2326 transitions. [2024-11-19 00:37:43,541 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 4.846153846153846) internal successors, (63), 15 states have internal predecessors, (63), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-19 00:37:43,541 INFO L276 IsEmpty]: Start isEmpty. Operand 1653 states and 2326 transitions. [2024-11-19 00:37:43,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-19 00:37:43,542 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:37:43,542 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:37:43,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-19 00:37:43,542 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:37:43,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:37:43,543 INFO L85 PathProgramCache]: Analyzing trace with hash -1611688820, now seen corresponding path program 1 times [2024-11-19 00:37:43,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:37:43,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903795303] [2024-11-19 00:37:43,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:37:43,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:37:43,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:37:44,268 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:37:44,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:37:44,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903795303] [2024-11-19 00:37:44,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903795303] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:37:44,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:37:44,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 00:37:44,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456494513] [2024-11-19 00:37:44,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:37:44,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 00:37:44,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:37:44,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 00:37:44,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 00:37:44,270 INFO L87 Difference]: Start difference. First operand 1653 states and 2326 transitions. Second operand has 7 states, 5 states have (on average 12.6) internal successors, (63), 7 states have internal predecessors, (63), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-19 00:37:44,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:37:44,570 INFO L93 Difference]: Finished difference Result 3574 states and 5035 transitions. [2024-11-19 00:37:44,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 00:37:44,571 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 12.6) internal successors, (63), 7 states have internal predecessors, (63), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 155 [2024-11-19 00:37:44,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:37:44,577 INFO L225 Difference]: With dead ends: 3574 [2024-11-19 00:37:44,577 INFO L226 Difference]: Without dead ends: 1924 [2024-11-19 00:37:44,579 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-19 00:37:44,580 INFO L432 NwaCegarLoop]: 263 mSDtfsCounter, 109 mSDsluCounter, 983 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 1246 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 00:37:44,580 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 1246 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 00:37:44,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1924 states. [2024-11-19 00:37:44,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1924 to 1713. [2024-11-19 00:37:44,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1713 states, 1479 states have (on average 1.3509127789046653) internal successors, (1998), 1492 states have internal predecessors, (1998), 207 states have call successors, (207), 26 states have call predecessors, (207), 26 states have return successors, (207), 194 states have call predecessors, (207), 207 states have call successors, (207) [2024-11-19 00:37:44,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1713 states to 1713 states and 2412 transitions. [2024-11-19 00:37:44,734 INFO L78 Accepts]: Start accepts. Automaton has 1713 states and 2412 transitions. Word has length 155 [2024-11-19 00:37:44,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:37:44,735 INFO L471 AbstractCegarLoop]: Abstraction has 1713 states and 2412 transitions. [2024-11-19 00:37:44,735 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 12.6) internal successors, (63), 7 states have internal predecessors, (63), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-19 00:37:44,735 INFO L276 IsEmpty]: Start isEmpty. Operand 1713 states and 2412 transitions. [2024-11-19 00:37:44,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-19 00:37:44,737 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:37:44,737 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:37:44,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-19 00:37:44,737 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:37:44,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:37:44,738 INFO L85 PathProgramCache]: Analyzing trace with hash 1413995788, now seen corresponding path program 1 times [2024-11-19 00:37:44,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:37:44,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726011922] [2024-11-19 00:37:44,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:37:44,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:37:44,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:37:45,165 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:37:45,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:37:45,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726011922] [2024-11-19 00:37:45,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726011922] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:37:45,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:37:45,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 00:37:45,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218039336] [2024-11-19 00:37:45,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:37:45,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 00:37:45,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:37:45,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 00:37:45,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 00:37:45,167 INFO L87 Difference]: Start difference. First operand 1713 states and 2412 transitions. Second operand has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-19 00:37:45,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:37:45,438 INFO L93 Difference]: Finished difference Result 3864 states and 5443 transitions. [2024-11-19 00:37:45,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 00:37:45,439 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 155 [2024-11-19 00:37:45,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:37:45,445 INFO L225 Difference]: With dead ends: 3864 [2024-11-19 00:37:45,446 INFO L226 Difference]: Without dead ends: 2154 [2024-11-19 00:37:45,449 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-19 00:37:45,449 INFO L432 NwaCegarLoop]: 253 mSDtfsCounter, 106 mSDsluCounter, 762 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 1015 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 00:37:45,449 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 1015 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 00:37:45,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2154 states. [2024-11-19 00:37:45,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2154 to 2146. [2024-11-19 00:37:45,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2146 states, 1852 states have (on average 1.349352051835853) internal successors, (2499), 1871 states have internal predecessors, (2499), 261 states have call successors, (261), 32 states have call predecessors, (261), 32 states have return successors, (261), 242 states have call predecessors, (261), 261 states have call successors, (261) [2024-11-19 00:37:45,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2146 states to 2146 states and 3021 transitions. [2024-11-19 00:37:45,621 INFO L78 Accepts]: Start accepts. Automaton has 2146 states and 3021 transitions. Word has length 155 [2024-11-19 00:37:45,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:37:45,621 INFO L471 AbstractCegarLoop]: Abstraction has 2146 states and 3021 transitions. [2024-11-19 00:37:45,622 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-19 00:37:45,622 INFO L276 IsEmpty]: Start isEmpty. Operand 2146 states and 3021 transitions. [2024-11-19 00:37:45,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-19 00:37:45,624 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:37:45,624 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:37:45,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-19 00:37:45,624 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:37:45,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:37:45,625 INFO L85 PathProgramCache]: Analyzing trace with hash 53373776, now seen corresponding path program 1 times [2024-11-19 00:37:45,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:37:45,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102500225] [2024-11-19 00:37:45,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:37:45,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:37:45,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:37:46,184 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:37:46,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:37:46,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102500225] [2024-11-19 00:37:46,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102500225] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:37:46,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:37:46,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 00:37:46,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001938754] [2024-11-19 00:37:46,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:37:46,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 00:37:46,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:37:46,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 00:37:46,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 00:37:46,186 INFO L87 Difference]: Start difference. First operand 2146 states and 3021 transitions. Second operand has 7 states, 5 states have (on average 12.6) internal successors, (63), 7 states have internal predecessors, (63), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-19 00:37:46,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:37:46,556 INFO L93 Difference]: Finished difference Result 4343 states and 6101 transitions. [2024-11-19 00:37:46,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 00:37:46,557 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 12.6) internal successors, (63), 7 states have internal predecessors, (63), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 155 [2024-11-19 00:37:46,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:37:46,564 INFO L225 Difference]: With dead ends: 4343 [2024-11-19 00:37:46,564 INFO L226 Difference]: Without dead ends: 2200 [2024-11-19 00:37:46,567 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-19 00:37:46,569 INFO L432 NwaCegarLoop]: 225 mSDtfsCounter, 111 mSDsluCounter, 824 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 1049 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 00:37:46,569 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 1049 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 00:37:46,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2200 states. [2024-11-19 00:37:46,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2200 to 1815. [2024-11-19 00:37:46,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1815 states, 1571 states have (on average 1.3469127943984722) internal successors, (2116), 1585 states have internal predecessors, (2116), 212 states have call successors, (212), 31 states have call predecessors, (212), 31 states have return successors, (212), 198 states have call predecessors, (212), 212 states have call successors, (212) [2024-11-19 00:37:46,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1815 states to 1815 states and 2540 transitions. [2024-11-19 00:37:46,771 INFO L78 Accepts]: Start accepts. Automaton has 1815 states and 2540 transitions. Word has length 155 [2024-11-19 00:37:46,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:37:46,771 INFO L471 AbstractCegarLoop]: Abstraction has 1815 states and 2540 transitions. [2024-11-19 00:37:46,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 12.6) internal successors, (63), 7 states have internal predecessors, (63), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-19 00:37:46,772 INFO L276 IsEmpty]: Start isEmpty. Operand 1815 states and 2540 transitions. [2024-11-19 00:37:46,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-19 00:37:46,773 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:37:46,774 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:37:46,774 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-19 00:37:46,774 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:37:46,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:37:46,774 INFO L85 PathProgramCache]: Analyzing trace with hash 311539214, now seen corresponding path program 1 times [2024-11-19 00:37:46,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:37:46,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298621536] [2024-11-19 00:37:46,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:37:46,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:37:46,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:37:47,530 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:37:47,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:37:47,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298621536] [2024-11-19 00:37:47,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298621536] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:37:47,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:37:47,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-19 00:37:47,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315223960] [2024-11-19 00:37:47,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:37:47,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-19 00:37:47,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:37:47,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-19 00:37:47,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2024-11-19 00:37:47,533 INFO L87 Difference]: Start difference. First operand 1815 states and 2540 transitions. Second operand has 15 states, 13 states have (on average 4.846153846153846) internal successors, (63), 15 states have internal predecessors, (63), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-19 00:37:48,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:37:48,263 INFO L93 Difference]: Finished difference Result 3823 states and 5338 transitions. [2024-11-19 00:37:48,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-19 00:37:48,264 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 4.846153846153846) internal successors, (63), 15 states have internal predecessors, (63), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 155 [2024-11-19 00:37:48,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:37:48,269 INFO L225 Difference]: With dead ends: 3823 [2024-11-19 00:37:48,269 INFO L226 Difference]: Without dead ends: 2047 [2024-11-19 00:37:48,272 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462 [2024-11-19 00:37:48,272 INFO L432 NwaCegarLoop]: 275 mSDtfsCounter, 117 mSDsluCounter, 2752 mSDsCounter, 0 mSdLazyCounter, 1120 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 3027 SdHoareTripleChecker+Invalid, 1121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-19 00:37:48,272 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 3027 Invalid, 1121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1120 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-19 00:37:48,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2047 states. [2024-11-19 00:37:48,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2047 to 1980. [2024-11-19 00:37:48,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1980 states, 1704 states have (on average 1.34037558685446) internal successors, (2284), 1720 states have internal predecessors, (2284), 238 states have call successors, (238), 37 states have call predecessors, (238), 37 states have return successors, (238), 222 states have call predecessors, (238), 238 states have call successors, (238) [2024-11-19 00:37:48,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1980 states to 1980 states and 2760 transitions. [2024-11-19 00:37:48,475 INFO L78 Accepts]: Start accepts. Automaton has 1980 states and 2760 transitions. Word has length 155 [2024-11-19 00:37:48,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:37:48,475 INFO L471 AbstractCegarLoop]: Abstraction has 1980 states and 2760 transitions. [2024-11-19 00:37:48,475 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 4.846153846153846) internal successors, (63), 15 states have internal predecessors, (63), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-19 00:37:48,475 INFO L276 IsEmpty]: Start isEmpty. Operand 1980 states and 2760 transitions. [2024-11-19 00:37:48,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-19 00:37:48,477 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:37:48,477 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:37:48,478 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-19 00:37:48,478 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:37:48,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:37:48,478 INFO L85 PathProgramCache]: Analyzing trace with hash -483650864, now seen corresponding path program 1 times [2024-11-19 00:37:48,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:37:48,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382817625] [2024-11-19 00:37:48,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:37:48,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:37:48,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:37:48,886 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:37:48,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:37:48,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382817625] [2024-11-19 00:37:48,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382817625] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:37:48,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:37:48,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 00:37:48,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072696136] [2024-11-19 00:37:48,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:37:48,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 00:37:48,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:37:48,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 00:37:48,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 00:37:48,888 INFO L87 Difference]: Start difference. First operand 1980 states and 2760 transitions. Second operand has 7 states, 5 states have (on average 12.6) internal successors, (63), 7 states have internal predecessors, (63), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-19 00:37:49,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:37:49,238 INFO L93 Difference]: Finished difference Result 3938 states and 5482 transitions. [2024-11-19 00:37:49,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 00:37:49,238 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 12.6) internal successors, (63), 7 states have internal predecessors, (63), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 155 [2024-11-19 00:37:49,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:37:49,244 INFO L225 Difference]: With dead ends: 3938 [2024-11-19 00:37:49,245 INFO L226 Difference]: Without dead ends: 1997 [2024-11-19 00:37:49,248 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-19 00:37:49,249 INFO L432 NwaCegarLoop]: 223 mSDtfsCounter, 108 mSDsluCounter, 844 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 1067 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 00:37:49,249 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 1067 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 00:37:49,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1997 states. [2024-11-19 00:37:49,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1997 to 1813. [2024-11-19 00:37:49,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1813 states, 1564 states have (on average 1.3363171355498722) internal successors, (2090), 1577 states have internal predecessors, (2090), 211 states have call successors, (211), 37 states have call predecessors, (211), 37 states have return successors, (211), 198 states have call predecessors, (211), 211 states have call successors, (211) [2024-11-19 00:37:49,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1813 states to 1813 states and 2512 transitions. [2024-11-19 00:37:49,444 INFO L78 Accepts]: Start accepts. Automaton has 1813 states and 2512 transitions. Word has length 155 [2024-11-19 00:37:49,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:37:49,444 INFO L471 AbstractCegarLoop]: Abstraction has 1813 states and 2512 transitions. [2024-11-19 00:37:49,444 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 12.6) internal successors, (63), 7 states have internal predecessors, (63), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-19 00:37:49,444 INFO L276 IsEmpty]: Start isEmpty. Operand 1813 states and 2512 transitions. [2024-11-19 00:37:49,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-19 00:37:49,446 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:37:49,446 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:37:49,446 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-19 00:37:49,447 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:37:49,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:37:49,447 INFO L85 PathProgramCache]: Analyzing trace with hash -1494768114, now seen corresponding path program 1 times [2024-11-19 00:37:49,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:37:49,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63670388] [2024-11-19 00:37:49,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:37:49,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:37:49,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:37:50,577 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:37:50,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:37:50,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63670388] [2024-11-19 00:37:50,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63670388] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:37:50,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:37:50,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-19 00:37:50,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678097577] [2024-11-19 00:37:50,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:37:50,578 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-19 00:37:50,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:37:50,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-19 00:37:50,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=239, Unknown=0, NotChecked=0, Total=272 [2024-11-19 00:37:50,579 INFO L87 Difference]: Start difference. First operand 1813 states and 2512 transitions. Second operand has 17 states, 14 states have (on average 4.5) internal successors, (63), 17 states have internal predecessors, (63), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-19 00:37:51,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:37:51,954 INFO L93 Difference]: Finished difference Result 3000 states and 4164 transitions. [2024-11-19 00:37:51,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-19 00:37:51,955 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 14 states have (on average 4.5) internal successors, (63), 17 states have internal predecessors, (63), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) Word has length 155 [2024-11-19 00:37:51,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:37:51,960 INFO L225 Difference]: With dead ends: 3000 [2024-11-19 00:37:51,960 INFO L226 Difference]: Without dead ends: 2008 [2024-11-19 00:37:51,962 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=91, Invalid=559, Unknown=0, NotChecked=0, Total=650 [2024-11-19 00:37:51,963 INFO L432 NwaCegarLoop]: 324 mSDtfsCounter, 245 mSDsluCounter, 3654 mSDsCounter, 0 mSdLazyCounter, 1494 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 3978 SdHoareTripleChecker+Invalid, 1513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-19 00:37:51,963 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 3978 Invalid, 1513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1494 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-19 00:37:51,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2008 states. [2024-11-19 00:37:52,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2008 to 1811. [2024-11-19 00:37:52,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1811 states, 1562 states have (on average 1.3367477592829706) internal successors, (2088), 1575 states have internal predecessors, (2088), 211 states have call successors, (211), 37 states have call predecessors, (211), 37 states have return successors, (211), 198 states have call predecessors, (211), 211 states have call successors, (211) [2024-11-19 00:37:52,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1811 states to 1811 states and 2510 transitions. [2024-11-19 00:37:52,118 INFO L78 Accepts]: Start accepts. Automaton has 1811 states and 2510 transitions. Word has length 155 [2024-11-19 00:37:52,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:37:52,119 INFO L471 AbstractCegarLoop]: Abstraction has 1811 states and 2510 transitions. [2024-11-19 00:37:52,119 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 14 states have (on average 4.5) internal successors, (63), 17 states have internal predecessors, (63), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-19 00:37:52,119 INFO L276 IsEmpty]: Start isEmpty. Operand 1811 states and 2510 transitions. [2024-11-19 00:37:52,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-19 00:37:52,125 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:37:52,125 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:37:52,125 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-19 00:37:52,126 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:37:52,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:37:52,126 INFO L85 PathProgramCache]: Analyzing trace with hash -1628781620, now seen corresponding path program 1 times [2024-11-19 00:37:52,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:37:52,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299052522] [2024-11-19 00:37:52,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:37:52,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:37:52,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:37:53,046 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:37:53,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:37:53,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299052522] [2024-11-19 00:37:53,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299052522] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:37:53,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:37:53,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-19 00:37:53,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539078160] [2024-11-19 00:37:53,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:37:53,048 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-19 00:37:53,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:37:53,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-19 00:37:53,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-11-19 00:37:53,049 INFO L87 Difference]: Start difference. First operand 1811 states and 2510 transitions. Second operand has 13 states, 12 states have (on average 5.25) internal successors, (63), 13 states have internal predecessors, (63), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-19 00:37:53,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:37:53,750 INFO L93 Difference]: Finished difference Result 3778 states and 5237 transitions. [2024-11-19 00:37:53,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-19 00:37:53,751 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.25) internal successors, (63), 13 states have internal predecessors, (63), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 155 [2024-11-19 00:37:53,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:37:53,758 INFO L225 Difference]: With dead ends: 3778 [2024-11-19 00:37:53,758 INFO L226 Difference]: Without dead ends: 2006 [2024-11-19 00:37:53,762 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2024-11-19 00:37:53,762 INFO L432 NwaCegarLoop]: 271 mSDtfsCounter, 108 mSDsluCounter, 2014 mSDsCounter, 0 mSdLazyCounter, 674 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 2285 SdHoareTripleChecker+Invalid, 675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 00:37:53,763 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 2285 Invalid, 675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 674 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 00:37:53,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2006 states. [2024-11-19 00:37:54,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2006 to 1807. [2024-11-19 00:37:54,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1807 states, 1558 states have (on average 1.337612323491656) internal successors, (2084), 1571 states have internal predecessors, (2084), 211 states have call successors, (211), 37 states have call predecessors, (211), 37 states have return successors, (211), 198 states have call predecessors, (211), 211 states have call successors, (211) [2024-11-19 00:37:54,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1807 states to 1807 states and 2506 transitions. [2024-11-19 00:37:54,019 INFO L78 Accepts]: Start accepts. Automaton has 1807 states and 2506 transitions. Word has length 155 [2024-11-19 00:37:54,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:37:54,021 INFO L471 AbstractCegarLoop]: Abstraction has 1807 states and 2506 transitions. [2024-11-19 00:37:54,021 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.25) internal successors, (63), 13 states have internal predecessors, (63), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-19 00:37:54,021 INFO L276 IsEmpty]: Start isEmpty. Operand 1807 states and 2506 transitions. [2024-11-19 00:37:54,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-19 00:37:54,023 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:37:54,023 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:37:54,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-19 00:37:54,024 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:37:54,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:37:54,024 INFO L85 PathProgramCache]: Analyzing trace with hash 686625358, now seen corresponding path program 1 times [2024-11-19 00:37:54,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:37:54,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718045954] [2024-11-19 00:37:54,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:37:54,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:37:54,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:37:55,044 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:37:55,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:37:55,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718045954] [2024-11-19 00:37:55,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718045954] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:37:55,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:37:55,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-19 00:37:55,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540076650] [2024-11-19 00:37:55,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:37:55,045 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-19 00:37:55,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:37:55,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-19 00:37:55,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-11-19 00:37:55,046 INFO L87 Difference]: Start difference. First operand 1807 states and 2506 transitions. Second operand has 13 states, 12 states have (on average 5.25) internal successors, (63), 13 states have internal predecessors, (63), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-19 00:37:55,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:37:55,644 INFO L93 Difference]: Finished difference Result 3759 states and 5216 transitions. [2024-11-19 00:37:55,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-19 00:37:55,644 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.25) internal successors, (63), 13 states have internal predecessors, (63), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 155 [2024-11-19 00:37:55,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:37:55,650 INFO L225 Difference]: With dead ends: 3759 [2024-11-19 00:37:55,651 INFO L226 Difference]: Without dead ends: 1991 [2024-11-19 00:37:55,653 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=317, Unknown=0, NotChecked=0, Total=380 [2024-11-19 00:37:55,654 INFO L432 NwaCegarLoop]: 273 mSDtfsCounter, 109 mSDsluCounter, 2352 mSDsCounter, 0 mSdLazyCounter, 830 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 2625 SdHoareTripleChecker+Invalid, 830 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 830 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 00:37:55,654 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 2625 Invalid, 830 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 830 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 00:37:55,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1991 states. [2024-11-19 00:37:55,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1991 to 1798. [2024-11-19 00:37:55,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1798 states, 1549 states have (on average 1.3376371852808264) internal successors, (2072), 1562 states have internal predecessors, (2072), 211 states have call successors, (211), 37 states have call predecessors, (211), 37 states have return successors, (211), 198 states have call predecessors, (211), 211 states have call successors, (211) [2024-11-19 00:37:55,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1798 states to 1798 states and 2494 transitions. [2024-11-19 00:37:55,895 INFO L78 Accepts]: Start accepts. Automaton has 1798 states and 2494 transitions. Word has length 155 [2024-11-19 00:37:55,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:37:55,895 INFO L471 AbstractCegarLoop]: Abstraction has 1798 states and 2494 transitions. [2024-11-19 00:37:55,895 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.25) internal successors, (63), 13 states have internal predecessors, (63), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-19 00:37:55,895 INFO L276 IsEmpty]: Start isEmpty. Operand 1798 states and 2494 transitions. [2024-11-19 00:37:55,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-19 00:37:55,897 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:37:55,897 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:37:55,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-19 00:37:55,897 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:37:55,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:37:55,898 INFO L85 PathProgramCache]: Analyzing trace with hash -612042519, now seen corresponding path program 1 times [2024-11-19 00:37:55,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:37:55,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142709487] [2024-11-19 00:37:55,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:37:55,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:37:55,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:37:55,954 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:37:55,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:37:55,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142709487] [2024-11-19 00:37:55,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142709487] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:37:55,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:37:55,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 00:37:55,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772376987] [2024-11-19 00:37:55,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:37:55,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 00:37:55,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:37:55,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 00:37:55,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 00:37:55,956 INFO L87 Difference]: Start difference. First operand 1798 states and 2494 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:37:56,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:37:56,147 INFO L93 Difference]: Finished difference Result 3572 states and 4967 transitions. [2024-11-19 00:37:56,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 00:37:56,148 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 156 [2024-11-19 00:37:56,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:37:56,154 INFO L225 Difference]: With dead ends: 3572 [2024-11-19 00:37:56,154 INFO L226 Difference]: Without dead ends: 1813 [2024-11-19 00:37:56,157 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 00:37:56,157 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 0 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 00:37:56,158 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 351 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 00:37:56,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1813 states. [2024-11-19 00:37:56,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1813 to 1813. [2024-11-19 00:37:56,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1813 states, 1564 states have (on average 1.3343989769820972) internal successors, (2087), 1577 states have internal predecessors, (2087), 211 states have call successors, (211), 37 states have call predecessors, (211), 37 states have return successors, (211), 198 states have call predecessors, (211), 211 states have call successors, (211) [2024-11-19 00:37:56,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1813 states to 1813 states and 2509 transitions. [2024-11-19 00:37:56,330 INFO L78 Accepts]: Start accepts. Automaton has 1813 states and 2509 transitions. Word has length 156 [2024-11-19 00:37:56,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:37:56,330 INFO L471 AbstractCegarLoop]: Abstraction has 1813 states and 2509 transitions. [2024-11-19 00:37:56,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 00:37:56,331 INFO L276 IsEmpty]: Start isEmpty. Operand 1813 states and 2509 transitions. [2024-11-19 00:37:56,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-19 00:37:56,333 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:37:56,333 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:37:56,333 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-19 00:37:56,333 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:37:56,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:37:56,334 INFO L85 PathProgramCache]: Analyzing trace with hash -353877081, now seen corresponding path program 1 times [2024-11-19 00:37:56,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:37:56,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718853478] [2024-11-19 00:37:56,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:37:56,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:37:56,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat