./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-80.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-80.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 3d1966bb592506b79b27027d67cb6c0fd6d8e652b34595ef57f8584495d162fe --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 08:40:12,321 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 08:40:12,364 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-20 08:40:12,367 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 08:40:12,368 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 08:40:12,383 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 08:40:12,384 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 08:40:12,384 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 08:40:12,384 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 08:40:12,385 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 08:40:12,385 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 08:40:12,385 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 08:40:12,386 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 08:40:12,386 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 08:40:12,386 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 08:40:12,387 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 08:40:12,387 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 08:40:12,387 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 08:40:12,387 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 08:40:12,388 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 08:40:12,388 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 08:40:12,388 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 08:40:12,389 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 08:40:12,389 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 08:40:12,389 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 08:40:12,389 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 08:40:12,390 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 08:40:12,390 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 08:40:12,390 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 08:40:12,390 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 08:40:12,391 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 08:40:12,391 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 08:40:12,391 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 08:40:12,391 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 08:40:12,391 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 08:40:12,392 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 08:40:12,392 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 08:40:12,396 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 08:40:12,397 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 08:40:12,397 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 08:40:12,399 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 08:40:12,399 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 08:40:12,400 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3d1966bb592506b79b27027d67cb6c0fd6d8e652b34595ef57f8584495d162fe [2024-11-20 08:40:12,595 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 08:40:12,617 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 08:40:12,621 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 08:40:12,622 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 08:40:12,622 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 08:40:12,623 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-80.i [2024-11-20 08:40:13,885 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 08:40:14,091 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 08:40:14,092 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-80.i [2024-11-20 08:40:14,102 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/028c561f3/97b09dd42f694027a64a03c170e92223/FLAGafa3e3952 [2024-11-20 08:40:14,466 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/028c561f3/97b09dd42f694027a64a03c170e92223 [2024-11-20 08:40:14,468 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 08:40:14,469 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 08:40:14,470 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 08:40:14,470 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 08:40:14,477 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 08:40:14,478 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:40:14" (1/1) ... [2024-11-20 08:40:14,480 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1556b399 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:40:14, skipping insertion in model container [2024-11-20 08:40:14,480 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:40:14" (1/1) ... [2024-11-20 08:40:14,512 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 08:40:14,639 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-ap_file-80.i[917,930] [2024-11-20 08:40:14,705 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 08:40:14,718 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 08:40:14,754 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-ap_file-80.i[917,930] [2024-11-20 08:40:14,822 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 08:40:14,877 INFO L204 MainTranslator]: Completed translation [2024-11-20 08:40:14,878 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:40:14 WrapperNode [2024-11-20 08:40:14,878 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 08:40:14,879 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 08:40:14,879 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 08:40:14,879 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 08:40:14,894 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:40:14" (1/1) ... [2024-11-20 08:40:14,922 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:40:14" (1/1) ... [2024-11-20 08:40:14,964 INFO L138 Inliner]: procedures = 29, calls = 233, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 789 [2024-11-20 08:40:14,968 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 08:40:14,969 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 08:40:14,969 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 08:40:14,969 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 08:40:14,980 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:40:14" (1/1) ... [2024-11-20 08:40:14,984 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:40:14" (1/1) ... [2024-11-20 08:40:14,992 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:40:14" (1/1) ... [2024-11-20 08:40:15,025 INFO L175 MemorySlicer]: Split 199 memory accesses to 7 slices as follows [2, 6, 98, 36, 11, 23, 23]. 49 percent of accesses are in the largest equivalence class. The 19 initializations are split as follows [2, 1, 8, 3, 1, 3, 1]. The 19 writes are split as follows [0, 1, 9, 4, 1, 3, 1]. [2024-11-20 08:40:15,026 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:40:14" (1/1) ... [2024-11-20 08:40:15,026 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:40:14" (1/1) ... [2024-11-20 08:40:15,052 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:40:14" (1/1) ... [2024-11-20 08:40:15,064 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:40:14" (1/1) ... [2024-11-20 08:40:15,071 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:40:14" (1/1) ... [2024-11-20 08:40:15,078 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:40:14" (1/1) ... [2024-11-20 08:40:15,085 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 08:40:15,088 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 08:40:15,088 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 08:40:15,088 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 08:40:15,088 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:40:14" (1/1) ... [2024-11-20 08:40:15,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 08:40:15,103 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 08:40:15,118 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) [2024-11-20 08:40:15,121 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 [2024-11-20 08:40:15,156 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 08:40:15,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-20 08:40:15,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-20 08:40:15,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-20 08:40:15,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-20 08:40:15,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-20 08:40:15,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-20 08:40:15,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-20 08:40:15,157 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-20 08:40:15,157 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-20 08:40:15,157 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-20 08:40:15,157 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-11-20 08:40:15,158 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-11-20 08:40:15,158 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2024-11-20 08:40:15,158 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2024-11-20 08:40:15,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-11-20 08:40:15,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-11-20 08:40:15,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-11-20 08:40:15,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-11-20 08:40:15,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-11-20 08:40:15,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2024-11-20 08:40:15,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#6 [2024-11-20 08:40:15,159 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-20 08:40:15,159 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-20 08:40:15,159 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-20 08:40:15,159 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-20 08:40:15,159 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-20 08:40:15,159 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-20 08:40:15,160 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-20 08:40:15,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-11-20 08:40:15,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-11-20 08:40:15,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2024-11-20 08:40:15,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2024-11-20 08:40:15,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2024-11-20 08:40:15,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#5 [2024-11-20 08:40:15,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#6 [2024-11-20 08:40:15,160 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-20 08:40:15,161 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-20 08:40:15,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 08:40:15,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-20 08:40:15,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-20 08:40:15,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-20 08:40:15,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-20 08:40:15,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-20 08:40:15,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-20 08:40:15,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 08:40:15,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 08:40:15,283 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 08:40:15,284 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 08:40:15,786 INFO L? ?]: Removed 236 outVars from TransFormulas that were not future-live. [2024-11-20 08:40:15,787 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 08:40:15,803 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 08:40:15,804 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-20 08:40:15,804 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:40:15 BoogieIcfgContainer [2024-11-20 08:40:15,804 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 08:40:15,807 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 08:40:15,807 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 08:40:15,809 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 08:40:15,809 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 08:40:14" (1/3) ... [2024-11-20 08:40:15,810 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15ec3f46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:40:15, skipping insertion in model container [2024-11-20 08:40:15,810 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:40:14" (2/3) ... [2024-11-20 08:40:15,810 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15ec3f46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:40:15, skipping insertion in model container [2024-11-20 08:40:15,810 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:40:15" (3/3) ... [2024-11-20 08:40:15,811 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-ap_file-80.i [2024-11-20 08:40:15,823 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 08:40:15,823 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-20 08:40:15,884 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 08:40:15,889 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;@26ad566, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 08:40:15,889 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-20 08:40:15,894 INFO L276 IsEmpty]: Start isEmpty. Operand has 154 states, 134 states have (on average 1.455223880597015) internal successors, (195), 135 states have internal predecessors, (195), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-20 08:40:15,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-20 08:40:15,905 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:40:15,905 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:40:15,905 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:40:15,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:40:15,910 INFO L85 PathProgramCache]: Analyzing trace with hash -1933176881, now seen corresponding path program 1 times [2024-11-20 08:40:15,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:40:15,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264315163] [2024-11-20 08:40:15,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:40:15,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:40:16,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:16,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:40:16,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:16,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:40:16,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:16,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-20 08:40:16,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:16,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:40:16,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:16,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 08:40:16,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:16,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:40:16,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:16,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-20 08:40:16,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:16,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:40:16,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:16,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:40:16,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:16,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:40:16,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:16,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:40:16,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:16,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:40:16,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:16,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:40:16,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:16,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:40:16,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:16,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 08:40:16,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:16,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-20 08:40:16,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:16,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-20 08:40:16,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:16,288 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-20 08:40:16,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:40:16,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264315163] [2024-11-20 08:40:16,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264315163] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:40:16,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:40:16,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 08:40:16,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165117698] [2024-11-20 08:40:16,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:40:16,295 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-20 08:40:16,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:40:16,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-20 08:40:16,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-20 08:40:16,320 INFO L87 Difference]: Start difference. First operand has 154 states, 134 states have (on average 1.455223880597015) internal successors, (195), 135 states have internal predecessors, (195), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 35.5) internal successors, (71), 2 states have internal predecessors, (71), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-20 08:40:16,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:40:16,351 INFO L93 Difference]: Finished difference Result 301 states and 469 transitions. [2024-11-20 08:40:16,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-20 08:40:16,353 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 35.5) internal successors, (71), 2 states have internal predecessors, (71), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 153 [2024-11-20 08:40:16,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:40:16,359 INFO L225 Difference]: With dead ends: 301 [2024-11-20 08:40:16,359 INFO L226 Difference]: Without dead ends: 150 [2024-11-20 08:40:16,362 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-20 08:40:16,365 INFO L432 NwaCegarLoop]: 222 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, 222 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 [2024-11-20 08:40:16,366 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 08:40:16,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2024-11-20 08:40:16,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2024-11-20 08:40:16,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 131 states have (on average 1.4351145038167938) internal successors, (188), 131 states have internal predecessors, (188), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-20 08:40:16,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 222 transitions. [2024-11-20 08:40:16,429 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 222 transitions. Word has length 153 [2024-11-20 08:40:16,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:40:16,430 INFO L471 AbstractCegarLoop]: Abstraction has 150 states and 222 transitions. [2024-11-20 08:40:16,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 35.5) internal successors, (71), 2 states have internal predecessors, (71), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-20 08:40:16,431 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 222 transitions. [2024-11-20 08:40:16,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-20 08:40:16,437 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:40:16,437 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:40:16,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 08:40:16,438 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:40:16,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:40:16,438 INFO L85 PathProgramCache]: Analyzing trace with hash -503270471, now seen corresponding path program 1 times [2024-11-20 08:40:16,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:40:16,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027129054] [2024-11-20 08:40:16,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:40:16,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:40:16,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:16,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:40:16,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:16,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:40:16,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:16,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-20 08:40:16,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:16,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:40:16,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:16,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 08:40:16,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:16,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:40:16,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:16,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-20 08:40:16,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:16,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:40:16,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:16,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:40:16,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:16,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:40:16,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:16,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:40:16,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:16,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:40:16,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:16,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:40:16,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:16,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:40:16,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:16,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 08:40:16,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:16,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-20 08:40:16,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:16,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-20 08:40:16,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:16,841 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-20 08:40:16,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:40:16,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027129054] [2024-11-20 08:40:16,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027129054] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:40:16,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:40:16,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 08:40:16,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099884973] [2024-11-20 08:40:16,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:40:16,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 08:40:16,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:40:16,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 08:40:16,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 08:40:16,850 INFO L87 Difference]: Start difference. First operand 150 states and 222 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-20 08:40:16,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:40:16,913 INFO L93 Difference]: Finished difference Result 299 states and 444 transitions. [2024-11-20 08:40:16,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 08:40:16,914 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 153 [2024-11-20 08:40:16,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:40:16,916 INFO L225 Difference]: With dead ends: 299 [2024-11-20 08:40:16,916 INFO L226 Difference]: Without dead ends: 152 [2024-11-20 08:40:16,917 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 08:40:16,918 INFO L432 NwaCegarLoop]: 220 mSDtfsCounter, 0 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 649 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 08:40:16,918 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 649 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 08:40:16,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2024-11-20 08:40:16,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2024-11-20 08:40:16,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 133 states have (on average 1.4285714285714286) internal successors, (190), 133 states have internal predecessors, (190), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-20 08:40:16,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 224 transitions. [2024-11-20 08:40:16,946 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 224 transitions. Word has length 153 [2024-11-20 08:40:16,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:40:16,947 INFO L471 AbstractCegarLoop]: Abstraction has 152 states and 224 transitions. [2024-11-20 08:40:16,947 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-20 08:40:16,948 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 224 transitions. [2024-11-20 08:40:16,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-20 08:40:16,950 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:40:16,950 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:40:16,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 08:40:16,951 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:40:16,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:40:16,952 INFO L85 PathProgramCache]: Analyzing trace with hash -921159173, now seen corresponding path program 1 times [2024-11-20 08:40:16,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:40:16,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103320722] [2024-11-20 08:40:16,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:40:16,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:40:17,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:17,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:40:17,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:17,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:40:17,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:17,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-20 08:40:17,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:17,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:40:17,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:17,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 08:40:17,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:17,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:40:17,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:17,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-20 08:40:17,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:17,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:40:17,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:17,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:40:17,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:17,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:40:17,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:17,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:40:17,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:17,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:40:17,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:17,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:40:17,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:17,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:40:17,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:17,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 08:40:17,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:17,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-20 08:40:17,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:17,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-20 08:40:17,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:17,332 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-20 08:40:17,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:40:17,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103320722] [2024-11-20 08:40:17,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103320722] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:40:17,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:40:17,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 08:40:17,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20265935] [2024-11-20 08:40:17,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:40:17,337 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 08:40:17,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:40:17,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 08:40:17,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 08:40:17,338 INFO L87 Difference]: Start difference. First operand 152 states and 224 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-20 08:40:17,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:40:17,382 INFO L93 Difference]: Finished difference Result 303 states and 448 transitions. [2024-11-20 08:40:17,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 08:40:17,383 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 153 [2024-11-20 08:40:17,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:40:17,386 INFO L225 Difference]: With dead ends: 303 [2024-11-20 08:40:17,386 INFO L226 Difference]: Without dead ends: 154 [2024-11-20 08:40:17,387 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 08:40:17,391 INFO L432 NwaCegarLoop]: 220 mSDtfsCounter, 0 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 649 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 08:40:17,391 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 649 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 08:40:17,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2024-11-20 08:40:17,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2024-11-20 08:40:17,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 135 states have (on average 1.4222222222222223) internal successors, (192), 135 states have internal predecessors, (192), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-20 08:40:17,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 226 transitions. [2024-11-20 08:40:17,404 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 226 transitions. Word has length 153 [2024-11-20 08:40:17,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:40:17,407 INFO L471 AbstractCegarLoop]: Abstraction has 154 states and 226 transitions. [2024-11-20 08:40:17,408 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-20 08:40:17,408 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 226 transitions. [2024-11-20 08:40:17,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-20 08:40:17,409 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:40:17,409 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:40:17,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 08:40:17,410 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:40:17,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:40:17,410 INFO L85 PathProgramCache]: Analyzing trace with hash -277707594, now seen corresponding path program 1 times [2024-11-20 08:40:17,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:40:17,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622758703] [2024-11-20 08:40:17,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:40:17,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:40:17,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:17,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:40:17,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:17,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:40:17,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:17,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-20 08:40:17,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:17,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:40:17,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:17,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 08:40:17,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:17,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:40:17,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:17,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-20 08:40:17,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:17,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:40:17,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:17,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:40:17,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:17,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:40:17,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:17,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:40:17,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:17,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:40:17,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:17,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:40:17,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:17,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:40:17,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:17,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 08:40:17,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:17,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-20 08:40:17,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:17,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-20 08:40:17,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:17,650 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-20 08:40:17,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:40:17,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622758703] [2024-11-20 08:40:17,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622758703] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:40:17,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:40:17,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 08:40:17,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100389597] [2024-11-20 08:40:17,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:40:17,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 08:40:17,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:40:17,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 08:40:17,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 08:40:17,655 INFO L87 Difference]: Start difference. First operand 154 states and 226 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-20 08:40:17,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:40:17,687 INFO L93 Difference]: Finished difference Result 308 states and 453 transitions. [2024-11-20 08:40:17,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 08:40:17,689 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 155 [2024-11-20 08:40:17,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:40:17,692 INFO L225 Difference]: With dead ends: 308 [2024-11-20 08:40:17,692 INFO L226 Difference]: Without dead ends: 157 [2024-11-20 08:40:17,693 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 08:40:17,694 INFO L432 NwaCegarLoop]: 219 mSDtfsCounter, 1 mSDsluCounter, 427 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 646 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 08:40:17,695 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 646 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 08:40:17,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2024-11-20 08:40:17,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 156. [2024-11-20 08:40:17,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 137 states have (on average 1.416058394160584) internal successors, (194), 137 states have internal predecessors, (194), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-20 08:40:17,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 228 transitions. [2024-11-20 08:40:17,712 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 228 transitions. Word has length 155 [2024-11-20 08:40:17,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:40:17,714 INFO L471 AbstractCegarLoop]: Abstraction has 156 states and 228 transitions. [2024-11-20 08:40:17,714 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-20 08:40:17,714 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 228 transitions. [2024-11-20 08:40:17,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-20 08:40:17,716 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:40:17,716 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:40:17,716 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 08:40:17,717 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:40:17,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:40:17,717 INFO L85 PathProgramCache]: Analyzing trace with hash 402350776, now seen corresponding path program 1 times [2024-11-20 08:40:17,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:40:17,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843662780] [2024-11-20 08:40:17,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:40:17,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:40:17,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:17,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:40:17,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:17,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:40:17,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:17,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-20 08:40:17,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:17,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:40:17,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:17,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 08:40:17,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:17,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:40:17,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:17,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-20 08:40:17,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:17,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:40:17,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:17,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:40:17,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:17,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:40:17,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:17,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:40:17,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:17,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:40:17,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:17,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:40:17,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:17,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:40:17,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:17,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 08:40:17,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:17,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-20 08:40:17,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:17,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-20 08:40:17,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:17,957 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-20 08:40:17,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:40:17,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843662780] [2024-11-20 08:40:17,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843662780] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:40:17,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:40:17,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 08:40:17,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704258552] [2024-11-20 08:40:17,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:40:17,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 08:40:17,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:40:17,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 08:40:17,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 08:40:17,960 INFO L87 Difference]: Start difference. First operand 156 states and 228 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-20 08:40:17,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:40:17,994 INFO L93 Difference]: Finished difference Result 312 states and 457 transitions. [2024-11-20 08:40:17,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 08:40:17,995 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 155 [2024-11-20 08:40:17,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:40:17,997 INFO L225 Difference]: With dead ends: 312 [2024-11-20 08:40:17,998 INFO L226 Difference]: Without dead ends: 159 [2024-11-20 08:40:17,999 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 08:40:18,000 INFO L432 NwaCegarLoop]: 219 mSDtfsCounter, 1 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 647 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 08:40:18,003 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 647 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 08:40:18,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2024-11-20 08:40:18,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 158. [2024-11-20 08:40:18,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 139 states have (on average 1.410071942446043) internal successors, (196), 139 states have internal predecessors, (196), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-20 08:40:18,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 230 transitions. [2024-11-20 08:40:18,019 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 230 transitions. Word has length 155 [2024-11-20 08:40:18,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:40:18,019 INFO L471 AbstractCegarLoop]: Abstraction has 158 states and 230 transitions. [2024-11-20 08:40:18,019 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-20 08:40:18,020 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 230 transitions. [2024-11-20 08:40:18,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-20 08:40:18,024 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:40:18,024 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:40:18,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 08:40:18,024 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:40:18,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:40:18,025 INFO L85 PathProgramCache]: Analyzing trace with hash -2117609158, now seen corresponding path program 1 times [2024-11-20 08:40:18,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:40:18,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063989185] [2024-11-20 08:40:18,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:40:18,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:40:18,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:18,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:40:18,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:18,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:40:18,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:18,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-20 08:40:18,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:18,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:40:18,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:18,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 08:40:18,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:18,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:40:18,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:18,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-20 08:40:18,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:18,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:40:18,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:18,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:40:18,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:18,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:40:18,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:18,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:40:18,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:18,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:40:18,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:18,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:40:18,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:18,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:40:18,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:18,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 08:40:18,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:18,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-20 08:40:18,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:18,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-20 08:40:18,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:18,198 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-20 08:40:18,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:40:18,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063989185] [2024-11-20 08:40:18,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063989185] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:40:18,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:40:18,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 08:40:18,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33676179] [2024-11-20 08:40:18,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:40:18,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 08:40:18,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:40:18,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 08:40:18,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 08:40:18,200 INFO L87 Difference]: Start difference. First operand 158 states and 230 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-20 08:40:18,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:40:18,220 INFO L93 Difference]: Finished difference Result 316 states and 461 transitions. [2024-11-20 08:40:18,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 08:40:18,221 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 155 [2024-11-20 08:40:18,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:40:18,222 INFO L225 Difference]: With dead ends: 316 [2024-11-20 08:40:18,222 INFO L226 Difference]: Without dead ends: 161 [2024-11-20 08:40:18,223 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 08:40:18,223 INFO L432 NwaCegarLoop]: 219 mSDtfsCounter, 1 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 649 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 08:40:18,225 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 649 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 08:40:18,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2024-11-20 08:40:18,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 160. [2024-11-20 08:40:18,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 141 states have (on average 1.4042553191489362) internal successors, (198), 141 states have internal predecessors, (198), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-20 08:40:18,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 232 transitions. [2024-11-20 08:40:18,234 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 232 transitions. Word has length 155 [2024-11-20 08:40:18,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:40:18,236 INFO L471 AbstractCegarLoop]: Abstraction has 160 states and 232 transitions. [2024-11-20 08:40:18,236 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-20 08:40:18,236 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 232 transitions. [2024-11-20 08:40:18,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-20 08:40:18,237 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:40:18,237 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:40:18,238 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-20 08:40:18,238 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:40:18,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:40:18,239 INFO L85 PathProgramCache]: Analyzing trace with hash -2115762116, now seen corresponding path program 1 times [2024-11-20 08:40:18,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:40:18,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568632261] [2024-11-20 08:40:18,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:40:18,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:40:18,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:18,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:40:18,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:18,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:40:18,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:18,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-20 08:40:18,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:18,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:40:18,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:18,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 08:40:18,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:18,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:40:18,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:18,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-20 08:40:18,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:18,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:40:18,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:18,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:40:18,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:18,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:40:18,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:18,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:40:18,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:18,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:40:18,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:18,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:40:18,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:18,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:40:18,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:18,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 08:40:18,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:18,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-20 08:40:18,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:18,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-20 08:40:18,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:18,833 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-20 08:40:18,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:40:18,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568632261] [2024-11-20 08:40:18,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568632261] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:40:18,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:40:18,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 08:40:18,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832624985] [2024-11-20 08:40:18,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:40:18,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 08:40:18,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:40:18,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 08:40:18,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 08:40:18,838 INFO L87 Difference]: Start difference. First operand 160 states and 232 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-20 08:40:18,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:40:18,938 INFO L93 Difference]: Finished difference Result 321 states and 468 transitions. [2024-11-20 08:40:18,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 08:40:18,941 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 155 [2024-11-20 08:40:18,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:40:18,943 INFO L225 Difference]: With dead ends: 321 [2024-11-20 08:40:18,943 INFO L226 Difference]: Without dead ends: 164 [2024-11-20 08:40:18,943 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-20 08:40:18,945 INFO L432 NwaCegarLoop]: 218 mSDtfsCounter, 2 mSDsluCounter, 630 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 848 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 08:40:18,946 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 848 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 08:40:18,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2024-11-20 08:40:18,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 163. [2024-11-20 08:40:18,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 144 states have (on average 1.4027777777777777) internal successors, (202), 144 states have internal predecessors, (202), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-20 08:40:18,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 236 transitions. [2024-11-20 08:40:18,959 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 236 transitions. Word has length 155 [2024-11-20 08:40:18,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:40:18,960 INFO L471 AbstractCegarLoop]: Abstraction has 163 states and 236 transitions. [2024-11-20 08:40:18,960 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-20 08:40:18,961 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 236 transitions. [2024-11-20 08:40:18,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-20 08:40:18,967 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:40:18,967 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:40:18,967 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-20 08:40:18,967 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:40:18,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:40:18,968 INFO L85 PathProgramCache]: Analyzing trace with hash 373766846, now seen corresponding path program 1 times [2024-11-20 08:40:18,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:40:18,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230483336] [2024-11-20 08:40:18,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:40:18,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:40:19,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:20,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:40:20,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:20,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:40:20,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:20,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-20 08:40:20,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:20,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:40:20,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:20,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 08:40:20,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:20,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:40:20,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:20,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-20 08:40:20,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:20,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:40:20,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:20,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:40:20,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:20,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:40:20,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:20,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:40:20,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:20,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:40:20,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:20,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:40:20,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:20,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:40:20,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:20,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 08:40:20,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:20,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-20 08:40:20,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:20,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-20 08:40:20,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:20,613 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-20 08:40:20,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:40:20,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230483336] [2024-11-20 08:40:20,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230483336] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:40:20,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:40:20,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 08:40:20,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522096710] [2024-11-20 08:40:20,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:40:20,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 08:40:20,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:40:20,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 08:40:20,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-20 08:40:20,615 INFO L87 Difference]: Start difference. First operand 163 states and 236 transitions. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-20 08:40:20,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:40:20,914 INFO L93 Difference]: Finished difference Result 435 states and 630 transitions. [2024-11-20 08:40:20,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 08:40:20,915 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 155 [2024-11-20 08:40:20,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:40:20,917 INFO L225 Difference]: With dead ends: 435 [2024-11-20 08:40:20,917 INFO L226 Difference]: Without dead ends: 275 [2024-11-20 08:40:20,917 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-20 08:40:20,918 INFO L432 NwaCegarLoop]: 206 mSDtfsCounter, 148 mSDsluCounter, 738 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 944 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 08:40:20,919 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 944 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 08:40:20,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2024-11-20 08:40:20,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 272. [2024-11-20 08:40:20,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 244 states have (on average 1.4098360655737705) internal successors, (344), 245 states have internal predecessors, (344), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-20 08:40:20,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 394 transitions. [2024-11-20 08:40:20,932 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 394 transitions. Word has length 155 [2024-11-20 08:40:20,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:40:20,933 INFO L471 AbstractCegarLoop]: Abstraction has 272 states and 394 transitions. [2024-11-20 08:40:20,933 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-20 08:40:20,933 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 394 transitions. [2024-11-20 08:40:20,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-20 08:40:20,935 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:40:20,935 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:40:20,935 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-20 08:40:20,936 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:40:20,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:40:20,936 INFO L85 PathProgramCache]: Analyzing trace with hash -1620377860, now seen corresponding path program 1 times [2024-11-20 08:40:20,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:40:20,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223365771] [2024-11-20 08:40:20,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:40:20,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:40:21,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:22,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:40:22,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:22,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:40:22,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:22,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-20 08:40:22,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:22,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:40:22,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:22,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 08:40:22,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:22,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:40:22,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:22,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-20 08:40:22,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:22,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:40:22,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:22,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:40:22,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:22,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:40:22,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:22,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:40:22,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:22,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:40:22,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:22,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:40:22,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:22,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:40:22,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:22,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 08:40:22,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:22,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-20 08:40:22,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:22,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-20 08:40:22,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:22,701 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-20 08:40:22,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:40:22,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223365771] [2024-11-20 08:40:22,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223365771] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:40:22,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:40:22,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 08:40:22,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658228483] [2024-11-20 08:40:22,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:40:22,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 08:40:22,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:40:22,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 08:40:22,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-20 08:40:22,703 INFO L87 Difference]: Start difference. First operand 272 states and 394 transitions. Second operand has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 9 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-20 08:40:23,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:40:23,473 INFO L93 Difference]: Finished difference Result 654 states and 946 transitions. [2024-11-20 08:40:23,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 08:40:23,474 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 9 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 155 [2024-11-20 08:40:23,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:40:23,476 INFO L225 Difference]: With dead ends: 654 [2024-11-20 08:40:23,477 INFO L226 Difference]: Without dead ends: 385 [2024-11-20 08:40:23,477 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-20 08:40:23,478 INFO L432 NwaCegarLoop]: 198 mSDtfsCounter, 151 mSDsluCounter, 1220 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 1418 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-20 08:40:23,478 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 1418 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-20 08:40:23,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2024-11-20 08:40:23,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 278. [2024-11-20 08:40:23,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 250 states have (on average 1.408) internal successors, (352), 251 states have internal predecessors, (352), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-20 08:40:23,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 402 transitions. [2024-11-20 08:40:23,491 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 402 transitions. Word has length 155 [2024-11-20 08:40:23,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:40:23,492 INFO L471 AbstractCegarLoop]: Abstraction has 278 states and 402 transitions. [2024-11-20 08:40:23,492 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 9 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-20 08:40:23,492 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 402 transitions. [2024-11-20 08:40:23,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-20 08:40:23,493 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:40:23,493 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:40:23,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-20 08:40:23,494 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:40:23,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:40:23,494 INFO L85 PathProgramCache]: Analyzing trace with hash 1856940986, now seen corresponding path program 1 times [2024-11-20 08:40:23,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:40:23,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534139763] [2024-11-20 08:40:23,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:40:23,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:40:23,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:23,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:40:23,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:23,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:40:23,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:23,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-20 08:40:23,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:23,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:40:23,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:23,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 08:40:23,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:23,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:40:23,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:24,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-20 08:40:24,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:24,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:40:24,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:24,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:40:24,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:24,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:40:24,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:24,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:40:24,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:24,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:40:24,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:24,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:40:24,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:24,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:40:24,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:24,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 08:40:24,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:24,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-20 08:40:24,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:24,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-20 08:40:24,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:24,018 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-20 08:40:24,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:40:24,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534139763] [2024-11-20 08:40:24,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534139763] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:40:24,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:40:24,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 08:40:24,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953581306] [2024-11-20 08:40:24,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:40:24,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 08:40:24,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:40:24,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 08:40:24,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-20 08:40:24,020 INFO L87 Difference]: Start difference. First operand 278 states and 402 transitions. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-20 08:40:24,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:40:24,255 INFO L93 Difference]: Finished difference Result 772 states and 1116 transitions. [2024-11-20 08:40:24,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 08:40:24,255 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 155 [2024-11-20 08:40:24,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:40:24,258 INFO L225 Difference]: With dead ends: 772 [2024-11-20 08:40:24,258 INFO L226 Difference]: Without dead ends: 497 [2024-11-20 08:40:24,258 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-20 08:40:24,259 INFO L432 NwaCegarLoop]: 327 mSDtfsCounter, 149 mSDsluCounter, 1104 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 1431 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 08:40:24,259 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 1431 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 08:40:24,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2024-11-20 08:40:24,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 288. [2024-11-20 08:40:24,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 260 states have (on average 1.4) internal successors, (364), 261 states have internal predecessors, (364), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-20 08:40:24,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 414 transitions. [2024-11-20 08:40:24,277 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 414 transitions. Word has length 155 [2024-11-20 08:40:24,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:40:24,279 INFO L471 AbstractCegarLoop]: Abstraction has 288 states and 414 transitions. [2024-11-20 08:40:24,279 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-20 08:40:24,279 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 414 transitions. [2024-11-20 08:40:24,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-20 08:40:24,280 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:40:24,280 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:40:24,280 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-20 08:40:24,281 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:40:24,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:40:24,281 INFO L85 PathProgramCache]: Analyzing trace with hash -1975213506, now seen corresponding path program 1 times [2024-11-20 08:40:24,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:40:24,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983458383] [2024-11-20 08:40:24,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:40:24,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:40:24,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:24,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:40:24,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:24,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:40:24,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:24,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-20 08:40:24,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:24,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:40:24,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:24,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 08:40:24,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:24,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:40:24,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:24,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-20 08:40:24,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:24,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:40:24,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:24,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:40:24,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:24,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:40:24,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:24,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:40:24,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:24,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:40:24,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:24,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:40:24,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:24,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:40:24,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:24,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 08:40:24,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:24,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-20 08:40:24,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:24,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-20 08:40:24,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:24,670 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-20 08:40:24,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:40:24,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983458383] [2024-11-20 08:40:24,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983458383] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:40:24,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:40:24,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 08:40:24,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81106589] [2024-11-20 08:40:24,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:40:24,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 08:40:24,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:40:24,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 08:40:24,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-20 08:40:24,672 INFO L87 Difference]: Start difference. First operand 288 states and 414 transitions. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-20 08:40:24,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:40:24,883 INFO L93 Difference]: Finished difference Result 684 states and 980 transitions. [2024-11-20 08:40:24,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 08:40:24,884 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 155 [2024-11-20 08:40:24,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:40:24,886 INFO L225 Difference]: With dead ends: 684 [2024-11-20 08:40:24,886 INFO L226 Difference]: Without dead ends: 399 [2024-11-20 08:40:24,887 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-20 08:40:24,887 INFO L432 NwaCegarLoop]: 223 mSDtfsCounter, 151 mSDsluCounter, 802 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 1025 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 08:40:24,888 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 1025 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 08:40:24,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2024-11-20 08:40:24,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 188. [2024-11-20 08:40:24,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 168 states have (on average 1.369047619047619) internal successors, (230), 168 states have internal predecessors, (230), 17 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-20 08:40:24,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 264 transitions. [2024-11-20 08:40:24,905 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 264 transitions. Word has length 155 [2024-11-20 08:40:24,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:40:24,905 INFO L471 AbstractCegarLoop]: Abstraction has 188 states and 264 transitions. [2024-11-20 08:40:24,906 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-20 08:40:24,906 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 264 transitions. [2024-11-20 08:40:24,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-20 08:40:24,907 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:40:24,907 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:40:24,907 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-20 08:40:24,907 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:40:24,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:40:24,907 INFO L85 PathProgramCache]: Analyzing trace with hash 1502105340, now seen corresponding path program 1 times [2024-11-20 08:40:24,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:40:24,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64247120] [2024-11-20 08:40:24,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:40:24,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:40:24,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:25,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:40:25,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:25,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:40:25,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:25,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-20 08:40:25,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:25,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:40:25,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:25,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 08:40:25,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:25,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:40:25,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:25,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-20 08:40:25,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:25,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:40:25,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:25,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:40:25,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:25,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:40:25,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:25,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:40:25,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:25,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:40:25,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:25,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:40:25,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:25,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:40:25,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:25,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 08:40:25,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:25,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-20 08:40:25,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:25,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-20 08:40:25,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:25,368 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-20 08:40:25,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:40:25,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64247120] [2024-11-20 08:40:25,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64247120] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:40:25,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:40:25,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 08:40:25,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637885619] [2024-11-20 08:40:25,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:40:25,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 08:40:25,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:40:25,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 08:40:25,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-20 08:40:25,370 INFO L87 Difference]: Start difference. First operand 188 states and 264 transitions. Second operand has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 9 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-20 08:40:25,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:40:25,717 INFO L93 Difference]: Finished difference Result 483 states and 682 transitions. [2024-11-20 08:40:25,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 08:40:25,717 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 9 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 155 [2024-11-20 08:40:25,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:40:25,723 INFO L225 Difference]: With dead ends: 483 [2024-11-20 08:40:25,723 INFO L226 Difference]: Without dead ends: 298 [2024-11-20 08:40:25,724 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-20 08:40:25,724 INFO L432 NwaCegarLoop]: 293 mSDtfsCounter, 148 mSDsluCounter, 1759 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 2052 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-20 08:40:25,724 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 2052 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-20 08:40:25,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2024-11-20 08:40:25,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 192. [2024-11-20 08:40:25,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 172 states have (on average 1.3662790697674418) internal successors, (235), 172 states have internal predecessors, (235), 17 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-20 08:40:25,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 269 transitions. [2024-11-20 08:40:25,757 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 269 transitions. Word has length 155 [2024-11-20 08:40:25,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:40:25,757 INFO L471 AbstractCegarLoop]: Abstraction has 192 states and 269 transitions. [2024-11-20 08:40:25,758 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 9 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-20 08:40:25,758 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 269 transitions. [2024-11-20 08:40:25,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-20 08:40:25,759 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:40:25,759 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:40:25,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-20 08:40:25,759 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:40:25,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:40:25,759 INFO L85 PathProgramCache]: Analyzing trace with hash -492039366, now seen corresponding path program 1 times [2024-11-20 08:40:25,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:40:25,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125617330] [2024-11-20 08:40:25,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:40:25,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:40:25,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:27,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:40:27,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:27,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:40:27,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:27,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-20 08:40:27,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:27,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:40:27,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:27,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 08:40:27,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:27,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:40:27,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:27,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-20 08:40:27,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:27,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:40:27,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:27,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:40:27,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:27,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:40:27,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:27,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:40:27,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:28,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:40:28,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:28,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:40:28,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:28,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:40:28,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:28,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 08:40:28,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:28,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-20 08:40:28,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:28,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-20 08:40:28,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:40:28,018 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-20 08:40:28,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:40:28,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125617330] [2024-11-20 08:40:28,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125617330] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:40:28,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:40:28,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-20 08:40:28,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176835440] [2024-11-20 08:40:28,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:40:28,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-20 08:40:28,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:40:28,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-20 08:40:28,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-11-20 08:40:28,020 INFO L87 Difference]: Start difference. First operand 192 states and 269 transitions. Second operand has 12 states, 12 states have (on average 6.083333333333333) internal successors, (73), 12 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-20 08:40:29,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:40:29,487 INFO L93 Difference]: Finished difference Result 645 states and 908 transitions. [2024-11-20 08:40:29,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-20 08:40:29,488 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.083333333333333) internal successors, (73), 12 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 155 [2024-11-20 08:40:29,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:40:29,490 INFO L225 Difference]: With dead ends: 645 [2024-11-20 08:40:29,490 INFO L226 Difference]: Without dead ends: 456 [2024-11-20 08:40:29,491 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=79, Invalid=341, Unknown=0, NotChecked=0, Total=420 [2024-11-20 08:40:29,491 INFO L432 NwaCegarLoop]: 391 mSDtfsCounter, 566 mSDsluCounter, 2533 mSDsCounter, 0 mSdLazyCounter, 1011 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 566 SdHoareTripleChecker+Valid, 2924 SdHoareTripleChecker+Invalid, 1043 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1011 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-20 08:40:29,492 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [566 Valid, 2924 Invalid, 1043 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1011 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-20 08:40:29,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2024-11-20 08:40:29,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 220. [2024-11-20 08:40:29,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 200 states have (on average 1.38) internal successors, (276), 200 states have internal predecessors, (276), 17 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-20 08:40:29,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 310 transitions. [2024-11-20 08:40:29,512 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 310 transitions. Word has length 155 [2024-11-20 08:40:29,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:40:29,512 INFO L471 AbstractCegarLoop]: Abstraction has 220 states and 310 transitions. [2024-11-20 08:40:29,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.083333333333333) internal successors, (73), 12 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-20 08:40:29,513 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 310 transitions. [2024-11-20 08:40:29,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-20 08:40:29,514 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:40:29,514 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:40:29,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-20 08:40:29,515 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:40:29,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:40:29,515 INFO L85 PathProgramCache]: Analyzing trace with hash 1997489596, now seen corresponding path program 1 times [2024-11-20 08:40:29,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:40:29,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568645029] [2024-11-20 08:40:29,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:40:29,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:40:29,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat