./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-pthread/cs_peterson.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-pthread/cs_peterson.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 4a8be7009a37d1df58713fd67cd9771c39e6139a0416009824ceb58da10928b7 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 00:10:34,015 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 00:10:34,104 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-10 00:10:34,115 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 00:10:34,115 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 00:10:34,150 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 00:10:34,152 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 00:10:34,152 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 00:10:34,153 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 00:10:34,154 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 00:10:34,154 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 00:10:34,155 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 00:10:34,155 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 00:10:34,156 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 00:10:34,156 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 00:10:34,156 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 00:10:34,157 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 00:10:34,157 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 00:10:34,157 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 00:10:34,157 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 00:10:34,158 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 00:10:34,158 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 00:10:34,159 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 00:10:34,159 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 00:10:34,159 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 00:10:34,159 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 00:10:34,160 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 00:10:34,160 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 00:10:34,160 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 00:10:34,161 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 00:10:34,161 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 00:10:34,161 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 00:10:34,161 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 00:10:34,162 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 00:10:34,162 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 00:10:34,162 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 00:10:34,163 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 00:10:34,163 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 00:10:34,163 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 00:10:34,164 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 00:10:34,164 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 00:10:34,165 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 00:10:34,165 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4a8be7009a37d1df58713fd67cd9771c39e6139a0416009824ceb58da10928b7 [2024-11-10 00:10:34,484 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 00:10:34,521 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 00:10:34,525 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 00:10:34,527 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 00:10:34,527 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 00:10:34,529 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-pthread/cs_peterson.i [2024-11-10 00:10:36,293 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 00:10:36,649 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 00:10:36,650 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-pthread/cs_peterson.i [2024-11-10 00:10:36,676 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/428e90b93/fd0f1215c06545f3b878880e03d75756/FLAG9c500f183 [2024-11-10 00:10:36,874 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/428e90b93/fd0f1215c06545f3b878880e03d75756 [2024-11-10 00:10:36,877 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 00:10:36,878 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 00:10:36,880 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 00:10:36,880 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 00:10:36,889 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 00:10:36,891 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:10:36" (1/1) ... [2024-11-10 00:10:36,892 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1235c2df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:10:36, skipping insertion in model container [2024-11-10 00:10:36,892 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:10:36" (1/1) ... [2024-11-10 00:10:36,935 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 00:10:37,564 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/seq-pthread/cs_peterson.i[23605,23618] [2024-11-10 00:10:37,723 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 00:10:37,749 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 00:10:37,785 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/seq-pthread/cs_peterson.i[23605,23618] [2024-11-10 00:10:37,830 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 00:10:37,875 INFO L204 MainTranslator]: Completed translation [2024-11-10 00:10:37,876 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:10:37 WrapperNode [2024-11-10 00:10:37,876 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 00:10:37,877 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 00:10:37,877 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 00:10:37,877 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 00:10:37,884 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:10:37" (1/1) ... [2024-11-10 00:10:37,914 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:10:37" (1/1) ... [2024-11-10 00:10:37,956 INFO L138 Inliner]: procedures = 145, calls = 285, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 441 [2024-11-10 00:10:37,959 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 00:10:37,959 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 00:10:37,959 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 00:10:37,960 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 00:10:37,973 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:10:37" (1/1) ... [2024-11-10 00:10:37,974 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:10:37" (1/1) ... [2024-11-10 00:10:37,985 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:10:37" (1/1) ... [2024-11-10 00:10:38,015 INFO L175 MemorySlicer]: Split 156 memory accesses to 18 slices as follows [2, 13, 8, 8, 8, 29, 21, 7, 5, 6, 7, 5, 7, 7, 13, 5, 5, 0]. 19 percent of accesses are in the largest equivalence class. The 43 initializations are split as follows [2, 0, 3, 3, 3, 9, 9, 3, 0, 2, 3, 0, 3, 3, 0, 0, 0, 0]. The 39 writes are split as follows [0, 1, 2, 2, 2, 11, 6, 2, 1, 2, 2, 1, 2, 2, 1, 1, 1, 0]. [2024-11-10 00:10:38,016 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:10:37" (1/1) ... [2024-11-10 00:10:38,016 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:10:37" (1/1) ... [2024-11-10 00:10:38,039 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:10:37" (1/1) ... [2024-11-10 00:10:38,041 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:10:37" (1/1) ... [2024-11-10 00:10:38,048 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:10:37" (1/1) ... [2024-11-10 00:10:38,052 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:10:37" (1/1) ... [2024-11-10 00:10:38,118 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 00:10:38,122 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 00:10:38,122 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 00:10:38,122 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 00:10:38,123 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:10:37" (1/1) ... [2024-11-10 00:10:38,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 00:10:38,224 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 00:10:38,252 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-10 00:10:38,255 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 [2024-11-10 00:10:38,308 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-10 00:10:38,308 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-10 00:10:38,309 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-10 00:10:38,309 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-10 00:10:38,309 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-10 00:10:38,309 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-10 00:10:38,309 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-10 00:10:38,310 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-10 00:10:38,311 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-10 00:10:38,311 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-10 00:10:38,311 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-10 00:10:38,311 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-11-10 00:10:38,311 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-11-10 00:10:38,312 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-11-10 00:10:38,312 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-11-10 00:10:38,312 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2024-11-10 00:10:38,312 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2024-11-10 00:10:38,312 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2024-11-10 00:10:38,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-10 00:10:38,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-10 00:10:38,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-10 00:10:38,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-10 00:10:38,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-10 00:10:38,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-10 00:10:38,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-10 00:10:38,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-10 00:10:38,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-10 00:10:38,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-10 00:10:38,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-10 00:10:38,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-11-10 00:10:38,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-11-10 00:10:38,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-11-10 00:10:38,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-11-10 00:10:38,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2024-11-10 00:10:38,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2024-11-10 00:10:38,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2024-11-10 00:10:38,316 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-10 00:10:38,316 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-10 00:10:38,316 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 00:10:38,316 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-10 00:10:38,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-10 00:10:38,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-10 00:10:38,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-10 00:10:38,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-10 00:10:38,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-10 00:10:38,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-10 00:10:38,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-10 00:10:38,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-10 00:10:38,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-10 00:10:38,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-11-10 00:10:38,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-11-10 00:10:38,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2024-11-10 00:10:38,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2024-11-10 00:10:38,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2024-11-10 00:10:38,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2024-11-10 00:10:38,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2024-11-10 00:10:38,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#16 [2024-11-10 00:10:38,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#17 [2024-11-10 00:10:38,320 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_create [2024-11-10 00:10:38,320 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_create [2024-11-10 00:10:38,320 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-10 00:10:38,321 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-10 00:10:38,321 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-10 00:10:38,321 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-10 00:10:38,321 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-10 00:10:38,321 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-10 00:10:38,321 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-10 00:10:38,321 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-10 00:10:38,321 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-10 00:10:38,321 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-11-10 00:10:38,321 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-11-10 00:10:38,321 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-11-10 00:10:38,321 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2024-11-10 00:10:38,322 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2024-11-10 00:10:38,322 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2024-11-10 00:10:38,322 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2024-11-10 00:10:38,322 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#16 [2024-11-10 00:10:38,322 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#17 [2024-11-10 00:10:38,322 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_join [2024-11-10 00:10:38,322 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_join [2024-11-10 00:10:38,322 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2024-11-10 00:10:38,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2024-11-10 00:10:38,322 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-10 00:10:38,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-10 00:10:38,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-10 00:10:38,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-10 00:10:38,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-10 00:10:38,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-10 00:10:38,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-10 00:10:38,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-10 00:10:38,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-10 00:10:38,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-11-10 00:10:38,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-11-10 00:10:38,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2024-11-10 00:10:38,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2024-11-10 00:10:38,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2024-11-10 00:10:38,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2024-11-10 00:10:38,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2024-11-10 00:10:38,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#15 [2024-11-10 00:10:38,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#16 [2024-11-10 00:10:38,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#17 [2024-11-10 00:10:38,326 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_cs [2024-11-10 00:10:38,326 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_cs [2024-11-10 00:10:38,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 00:10:38,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-10 00:10:38,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-10 00:10:38,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-10 00:10:38,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-10 00:10:38,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-10 00:10:38,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-10 00:10:38,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-10 00:10:38,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-10 00:10:38,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-10 00:10:38,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-10 00:10:38,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-10 00:10:38,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-10 00:10:38,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-10 00:10:38,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-10 00:10:38,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-10 00:10:38,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-10 00:10:38,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-11-10 00:10:38,329 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 00:10:38,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 00:10:38,645 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 00:10:38,647 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 00:10:43,228 INFO L? ?]: Removed 52 outVars from TransFormulas that were not future-live. [2024-11-10 00:10:43,229 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 00:10:43,242 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 00:10:43,242 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 00:10:43,242 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 12:10:43 BoogieIcfgContainer [2024-11-10 00:10:43,243 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 00:10:43,244 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 00:10:43,245 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 00:10:43,248 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 00:10:43,248 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 12:10:36" (1/3) ... [2024-11-10 00:10:43,249 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37d1038e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:10:43, skipping insertion in model container [2024-11-10 00:10:43,249 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:10:37" (2/3) ... [2024-11-10 00:10:43,249 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37d1038e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:10:43, skipping insertion in model container [2024-11-10 00:10:43,249 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 12:10:43" (3/3) ... [2024-11-10 00:10:43,250 INFO L112 eAbstractionObserver]: Analyzing ICFG cs_peterson.i [2024-11-10 00:10:43,265 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 00:10:43,266 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-10 00:10:43,327 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 00:10:43,334 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;@210e1869, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 00:10:43,335 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-10 00:10:43,339 INFO L276 IsEmpty]: Start isEmpty. Operand has 116 states, 75 states have (on average 1.3066666666666666) internal successors, (98), 76 states have internal predecessors, (98), 34 states have call successors, (34), 5 states have call predecessors, (34), 5 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-10 00:10:43,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-10 00:10:43,355 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:10:43,356 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:10:43,357 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:10:43,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:10:43,362 INFO L85 PathProgramCache]: Analyzing trace with hash 976719278, now seen corresponding path program 1 times [2024-11-10 00:10:43,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:10:43,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795789295] [2024-11-10 00:10:43,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:10:43,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:10:43,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:43,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-10 00:10:43,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:43,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-10 00:10:43,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:43,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-10 00:10:43,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:43,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-10 00:10:43,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:43,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-10 00:10:43,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:43,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-10 00:10:43,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:43,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-10 00:10:43,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:43,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-10 00:10:43,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:43,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-10 00:10:43,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:43,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-10 00:10:43,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:43,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-10 00:10:43,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:43,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-10 00:10:43,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:43,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-10 00:10:43,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:43,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-10 00:10:43,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:43,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-10 00:10:43,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:43,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-10 00:10:43,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:43,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-10 00:10:43,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:43,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-10 00:10:43,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:43,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-10 00:10:43,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:43,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-10 00:10:43,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:43,964 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-10 00:10:43,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:10:43,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795789295] [2024-11-10 00:10:43,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795789295] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:10:43,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:10:43,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 00:10:43,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054903855] [2024-11-10 00:10:43,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:10:43,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-10 00:10:43,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:10:43,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-10 00:10:43,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 00:10:44,000 INFO L87 Difference]: Start difference. First operand has 116 states, 75 states have (on average 1.3066666666666666) internal successors, (98), 76 states have internal predecessors, (98), 34 states have call successors, (34), 5 states have call predecessors, (34), 5 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) Second operand has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-10 00:10:44,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:10:44,036 INFO L93 Difference]: Finished difference Result 229 states and 361 transitions. [2024-11-10 00:10:44,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-10 00:10:44,039 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 133 [2024-11-10 00:10:44,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:10:44,047 INFO L225 Difference]: With dead ends: 229 [2024-11-10 00:10:44,047 INFO L226 Difference]: Without dead ends: 111 [2024-11-10 00:10:44,052 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 00:10:44,058 INFO L432 NwaCegarLoop]: 161 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, 161 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 [2024-11-10 00:10:44,061 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 00:10:44,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-11-10 00:10:44,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2024-11-10 00:10:44,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 71 states have (on average 1.2535211267605635) internal successors, (89), 71 states have internal predecessors, (89), 34 states have call successors, (34), 5 states have call predecessors, (34), 5 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-10 00:10:44,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 157 transitions. [2024-11-10 00:10:44,111 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 157 transitions. Word has length 133 [2024-11-10 00:10:44,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:10:44,113 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 157 transitions. [2024-11-10 00:10:44,113 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-10 00:10:44,114 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 157 transitions. [2024-11-10 00:10:44,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-10 00:10:44,118 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:10:44,118 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:10:44,118 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 00:10:44,118 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:10:44,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:10:44,119 INFO L85 PathProgramCache]: Analyzing trace with hash -464020665, now seen corresponding path program 1 times [2024-11-10 00:10:44,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:10:44,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320280153] [2024-11-10 00:10:44,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:10:44,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:10:44,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:44,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-10 00:10:44,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:44,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-10 00:10:44,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:44,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-10 00:10:44,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:44,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-10 00:10:44,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:44,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-10 00:10:44,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:44,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-10 00:10:44,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:44,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-10 00:10:44,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:44,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-10 00:10:44,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:44,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-10 00:10:44,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:44,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-10 00:10:44,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:44,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-10 00:10:44,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:44,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-10 00:10:44,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:44,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-10 00:10:44,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:44,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-10 00:10:44,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:44,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-10 00:10:44,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:44,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-10 00:10:44,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:44,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-10 00:10:44,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:44,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-10 00:10:44,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:44,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-10 00:10:44,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:44,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-10 00:10:44,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:44,538 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-10 00:10:44,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:10:44,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320280153] [2024-11-10 00:10:44,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320280153] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:10:44,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:10:44,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 00:10:44,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352876200] [2024-11-10 00:10:44,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:10:44,541 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 00:10:44,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:10:44,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 00:10:44,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:10:44,542 INFO L87 Difference]: Start difference. First operand 111 states and 157 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-10 00:10:44,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:10:44,599 INFO L93 Difference]: Finished difference Result 220 states and 312 transitions. [2024-11-10 00:10:44,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 00:10:44,601 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 134 [2024-11-10 00:10:44,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:10:44,603 INFO L225 Difference]: With dead ends: 220 [2024-11-10 00:10:44,603 INFO L226 Difference]: Without dead ends: 116 [2024-11-10 00:10:44,605 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:10:44,606 INFO L432 NwaCegarLoop]: 154 mSDtfsCounter, 4 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 00:10:44,607 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 306 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 00:10:44,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2024-11-10 00:10:44,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 113. [2024-11-10 00:10:44,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 73 states have (on average 1.2465753424657535) internal successors, (91), 73 states have internal predecessors, (91), 34 states have call successors, (34), 5 states have call predecessors, (34), 5 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-10 00:10:44,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 159 transitions. [2024-11-10 00:10:44,621 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 159 transitions. Word has length 134 [2024-11-10 00:10:44,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:10:44,621 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 159 transitions. [2024-11-10 00:10:44,622 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-10 00:10:44,622 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 159 transitions. [2024-11-10 00:10:44,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-10 00:10:44,624 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:10:44,625 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:10:44,625 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 00:10:44,625 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:10:44,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:10:44,626 INFO L85 PathProgramCache]: Analyzing trace with hash -2034097129, now seen corresponding path program 1 times [2024-11-10 00:10:44,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:10:44,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624497642] [2024-11-10 00:10:44,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:10:44,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:10:44,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:45,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-10 00:10:45,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:45,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-10 00:10:45,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:45,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-10 00:10:45,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:45,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-10 00:10:45,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:45,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-10 00:10:45,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:45,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-10 00:10:45,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:45,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-10 00:10:45,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:45,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-10 00:10:45,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:45,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-10 00:10:45,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:45,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-10 00:10:45,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:45,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-10 00:10:45,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:45,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-10 00:10:45,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:45,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-10 00:10:45,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:45,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-10 00:10:45,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:45,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-10 00:10:45,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:45,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-10 00:10:45,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:45,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-10 00:10:45,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:45,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-10 00:10:45,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:45,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-10 00:10:45,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:45,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-11-10 00:10:45,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:45,152 INFO L134 CoverageAnalysis]: Checked inductivity of 762 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-10 00:10:45,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:10:45,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624497642] [2024-11-10 00:10:45,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624497642] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:10:45,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:10:45,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 00:10:45,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807936016] [2024-11-10 00:10:45,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:10:45,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 00:10:45,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:10:45,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 00:10:45,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:10:45,155 INFO L87 Difference]: Start difference. First operand 113 states and 159 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-10 00:10:45,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:10:45,197 INFO L93 Difference]: Finished difference Result 224 states and 317 transitions. [2024-11-10 00:10:45,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 00:10:45,201 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 139 [2024-11-10 00:10:45,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:10:45,202 INFO L225 Difference]: With dead ends: 224 [2024-11-10 00:10:45,202 INFO L226 Difference]: Without dead ends: 115 [2024-11-10 00:10:45,203 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:10:45,207 INFO L432 NwaCegarLoop]: 156 mSDtfsCounter, 0 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 00:10:45,208 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 309 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 00:10:45,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-11-10 00:10:45,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2024-11-10 00:10:45,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 75 states have (on average 1.24) internal successors, (93), 75 states have internal predecessors, (93), 34 states have call successors, (34), 5 states have call predecessors, (34), 5 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-10 00:10:45,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 161 transitions. [2024-11-10 00:10:45,231 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 161 transitions. Word has length 139 [2024-11-10 00:10:45,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:10:45,231 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 161 transitions. [2024-11-10 00:10:45,232 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-10 00:10:45,232 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 161 transitions. [2024-11-10 00:10:45,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-10 00:10:45,236 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:10:45,236 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:10:45,237 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 00:10:45,237 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:10:45,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:10:45,239 INFO L85 PathProgramCache]: Analyzing trace with hash -160242472, now seen corresponding path program 1 times [2024-11-10 00:10:45,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:10:45,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216203992] [2024-11-10 00:10:45,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:10:45,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:10:45,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:45,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-10 00:10:45,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:45,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-10 00:10:45,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:45,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-10 00:10:45,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:45,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-10 00:10:45,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:45,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-10 00:10:45,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:45,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-10 00:10:45,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:45,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-10 00:10:45,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:45,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-10 00:10:45,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:45,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-10 00:10:45,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:45,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-10 00:10:45,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:45,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-10 00:10:45,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:45,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-10 00:10:45,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:45,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-10 00:10:45,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:45,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-10 00:10:45,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:45,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-10 00:10:45,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:45,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-10 00:10:45,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:45,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-10 00:10:45,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:45,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-10 00:10:45,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:45,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-10 00:10:45,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:45,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-10 00:10:45,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:45,578 INFO L134 CoverageAnalysis]: Checked inductivity of 764 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-10 00:10:45,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:10:45,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216203992] [2024-11-10 00:10:45,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216203992] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 00:10:45,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1316208985] [2024-11-10 00:10:45,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:10:45,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 00:10:45,579 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 00:10:45,581 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 00:10:45,582 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-10 00:10:46,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:46,055 INFO L255 TraceCheckSpWp]: Trace formula consists of 950 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-10 00:10:46,068 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 00:10:46,106 INFO L134 CoverageAnalysis]: Checked inductivity of 764 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-10 00:10:46,107 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 00:10:46,210 INFO L134 CoverageAnalysis]: Checked inductivity of 764 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-10 00:10:46,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1316208985] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 00:10:46,211 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 00:10:46,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2024-11-10 00:10:46,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971269504] [2024-11-10 00:10:46,212 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 00:10:46,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 00:10:46,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:10:46,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 00:10:46,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 00:10:46,214 INFO L87 Difference]: Start difference. First operand 115 states and 161 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2024-11-10 00:10:46,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:10:46,250 INFO L93 Difference]: Finished difference Result 230 states and 324 transitions. [2024-11-10 00:10:46,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 00:10:46,251 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) Word has length 141 [2024-11-10 00:10:46,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:10:46,253 INFO L225 Difference]: With dead ends: 230 [2024-11-10 00:10:46,253 INFO L226 Difference]: Without dead ends: 119 [2024-11-10 00:10:46,254 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 319 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 00:10:46,255 INFO L432 NwaCegarLoop]: 156 mSDtfsCounter, 0 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 616 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 00:10:46,255 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 616 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 00:10:46,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2024-11-10 00:10:46,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2024-11-10 00:10:46,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 79 states have (on average 1.2278481012658229) internal successors, (97), 79 states have internal predecessors, (97), 34 states have call successors, (34), 5 states have call predecessors, (34), 5 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-10 00:10:46,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 165 transitions. [2024-11-10 00:10:46,264 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 165 transitions. Word has length 141 [2024-11-10 00:10:46,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:10:46,265 INFO L471 AbstractCegarLoop]: Abstraction has 119 states and 165 transitions. [2024-11-10 00:10:46,265 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2024-11-10 00:10:46,265 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 165 transitions. [2024-11-10 00:10:46,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-10 00:10:46,267 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:10:46,267 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:10:46,288 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-10 00:10:46,471 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 00:10:46,472 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:10:46,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:10:46,473 INFO L85 PathProgramCache]: Analyzing trace with hash -253300326, now seen corresponding path program 2 times [2024-11-10 00:10:46,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:10:46,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583835828] [2024-11-10 00:10:46,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:10:46,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:10:46,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:46,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-10 00:10:46,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:46,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-10 00:10:46,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:46,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-10 00:10:46,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:46,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-10 00:10:46,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:46,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-10 00:10:46,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:46,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-10 00:10:46,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:46,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-10 00:10:46,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:46,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-10 00:10:46,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:46,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-10 00:10:46,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:46,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-10 00:10:46,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:46,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-10 00:10:46,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:46,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-10 00:10:46,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:46,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-10 00:10:46,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:46,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-10 00:10:46,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:46,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-10 00:10:46,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:46,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-10 00:10:46,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:46,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-10 00:10:46,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:46,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-10 00:10:46,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:46,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-11-10 00:10:46,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:46,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-10 00:10:46,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:46,817 INFO L134 CoverageAnalysis]: Checked inductivity of 774 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 772 trivial. 0 not checked. [2024-11-10 00:10:46,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:10:46,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583835828] [2024-11-10 00:10:46,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583835828] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 00:10:46,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1009043077] [2024-11-10 00:10:46,822 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 00:10:46,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 00:10:46,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 00:10:46,826 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 00:10:46,827 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-10 00:10:47,391 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-10 00:10:47,392 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 00:10:47,397 INFO L255 TraceCheckSpWp]: Trace formula consists of 587 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-10 00:10:47,404 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 00:10:47,693 INFO L134 CoverageAnalysis]: Checked inductivity of 774 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 774 trivial. 0 not checked. [2024-11-10 00:10:47,693 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 00:10:47,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1009043077] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:10:47,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 00:10:47,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-10 00:10:47,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093149895] [2024-11-10 00:10:47,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:10:47,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 00:10:47,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:10:47,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 00:10:47,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-10 00:10:47,696 INFO L87 Difference]: Start difference. First operand 119 states and 165 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-10 00:10:47,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:10:47,728 INFO L93 Difference]: Finished difference Result 220 states and 313 transitions. [2024-11-10 00:10:47,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 00:10:47,728 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 145 [2024-11-10 00:10:47,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:10:47,732 INFO L225 Difference]: With dead ends: 220 [2024-11-10 00:10:47,732 INFO L226 Difference]: Without dead ends: 173 [2024-11-10 00:10:47,733 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-10 00:10:47,733 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 74 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 00:10:47,734 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 483 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 00:10:47,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2024-11-10 00:10:47,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2024-11-10 00:10:47,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 115 states have (on average 1.2695652173913043) internal successors, (146), 115 states have internal predecessors, (146), 47 states have call successors, (47), 10 states have call predecessors, (47), 10 states have return successors, (51), 47 states have call predecessors, (51), 47 states have call successors, (51) [2024-11-10 00:10:47,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 244 transitions. [2024-11-10 00:10:47,750 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 244 transitions. Word has length 145 [2024-11-10 00:10:47,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:10:47,750 INFO L471 AbstractCegarLoop]: Abstraction has 173 states and 244 transitions. [2024-11-10 00:10:47,750 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-10 00:10:47,751 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 244 transitions. [2024-11-10 00:10:47,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2024-11-10 00:10:47,753 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:10:47,753 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:10:47,775 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-10 00:10:47,957 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 00:10:47,958 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:10:47,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:10:47,959 INFO L85 PathProgramCache]: Analyzing trace with hash 2059390751, now seen corresponding path program 1 times [2024-11-10 00:10:47,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:10:47,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794890189] [2024-11-10 00:10:47,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:10:47,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:10:48,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:48,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-10 00:10:48,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:48,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 00:10:48,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:48,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 00:10:48,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:48,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-10 00:10:48,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:48,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-10 00:10:48,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:48,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 00:10:48,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:48,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-10 00:10:48,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:48,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-10 00:10:48,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:48,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 00:10:48,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:48,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-10 00:10:48,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:48,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-10 00:10:48,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:48,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 00:10:48,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:48,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-10 00:10:48,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:48,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-10 00:10:48,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:48,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-10 00:10:48,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:48,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-10 00:10:48,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:48,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-10 00:10:48,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:48,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-10 00:10:48,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:48,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-10 00:10:48,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:48,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-10 00:10:48,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:48,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-10 00:10:48,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:48,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-10 00:10:48,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:48,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-11-10 00:10:48,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:48,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-11-10 00:10:48,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:48,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-11-10 00:10:48,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:48,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-11-10 00:10:48,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:48,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-10 00:10:48,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:48,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-11-10 00:10:48,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:48,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-11-10 00:10:48,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:48,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-11-10 00:10:48,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:48,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2024-11-10 00:10:48,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:48,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2024-11-10 00:10:48,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:48,581 INFO L134 CoverageAnalysis]: Checked inductivity of 1152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1150 trivial. 0 not checked. [2024-11-10 00:10:48,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:10:48,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794890189] [2024-11-10 00:10:48,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794890189] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 00:10:48,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [525183237] [2024-11-10 00:10:48,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:10:48,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 00:10:48,582 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 00:10:48,584 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 00:10:48,586 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-10 00:10:49,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:49,169 INFO L255 TraceCheckSpWp]: Trace formula consists of 1460 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-10 00:10:49,178 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 00:10:49,227 INFO L134 CoverageAnalysis]: Checked inductivity of 1152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1150 trivial. 0 not checked. [2024-11-10 00:10:49,227 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 00:10:49,432 INFO L134 CoverageAnalysis]: Checked inductivity of 1152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1150 trivial. 0 not checked. [2024-11-10 00:10:49,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [525183237] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 00:10:49,433 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 00:10:49,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 10 [2024-11-10 00:10:49,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779164969] [2024-11-10 00:10:49,434 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 00:10:49,435 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-10 00:10:49,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:10:49,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-10 00:10:49,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-10 00:10:49,436 INFO L87 Difference]: Start difference. First operand 173 states and 244 transitions. Second operand has 10 states, 10 states have (on average 10.5) internal successors, (105), 6 states have internal predecessors, (105), 2 states have call successors, (66), 6 states have call predecessors, (66), 2 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) [2024-11-10 00:10:53,952 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-10 00:10:54,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:10:54,537 INFO L93 Difference]: Finished difference Result 363 states and 511 transitions. [2024-11-10 00:10:54,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 00:10:54,538 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.5) internal successors, (105), 6 states have internal predecessors, (105), 2 states have call successors, (66), 6 states have call predecessors, (66), 2 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) Word has length 214 [2024-11-10 00:10:54,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:10:54,541 INFO L225 Difference]: With dead ends: 363 [2024-11-10 00:10:54,541 INFO L226 Difference]: Without dead ends: 205 [2024-11-10 00:10:54,542 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 497 GetRequests, 486 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2024-11-10 00:10:54,542 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 48 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 70 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-11-10 00:10:54,543 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 378 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 285 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2024-11-10 00:10:54,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2024-11-10 00:10:54,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 200. [2024-11-10 00:10:54,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 140 states have (on average 1.2357142857142858) internal successors, (173), 142 states have internal predecessors, (173), 47 states have call successors, (47), 10 states have call predecessors, (47), 12 states have return successors, (55), 47 states have call predecessors, (55), 47 states have call successors, (55) [2024-11-10 00:10:54,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 275 transitions. [2024-11-10 00:10:54,573 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 275 transitions. Word has length 214 [2024-11-10 00:10:54,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:10:54,573 INFO L471 AbstractCegarLoop]: Abstraction has 200 states and 275 transitions. [2024-11-10 00:10:54,573 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.5) internal successors, (105), 6 states have internal predecessors, (105), 2 states have call successors, (66), 6 states have call predecessors, (66), 2 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) [2024-11-10 00:10:54,574 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 275 transitions. [2024-11-10 00:10:54,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2024-11-10 00:10:54,576 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:10:54,577 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 12, 9, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:10:54,597 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-10 00:10:54,777 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 00:10:54,778 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:10:54,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:10:54,779 INFO L85 PathProgramCache]: Analyzing trace with hash 1397058879, now seen corresponding path program 2 times [2024-11-10 00:10:54,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:10:54,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240706886] [2024-11-10 00:10:54,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:10:54,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:10:55,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:55,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-10 00:10:55,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:55,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 00:10:55,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:55,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 00:10:55,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:55,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-10 00:10:55,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:55,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-10 00:10:55,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:55,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 00:10:55,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:55,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-10 00:10:55,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:55,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-10 00:10:55,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:55,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 00:10:55,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:55,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-10 00:10:55,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:55,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-10 00:10:55,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:55,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 00:10:55,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:55,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-10 00:10:55,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:55,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-10 00:10:55,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:55,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-10 00:10:55,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:55,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-10 00:10:56,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:56,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-10 00:10:56,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:56,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-10 00:10:56,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:56,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-10 00:10:56,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:56,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-10 00:10:56,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:56,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-11-10 00:10:56,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:56,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-11-10 00:10:56,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:56,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-11-10 00:10:56,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:56,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-11-10 00:10:56,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:56,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-11-10 00:10:56,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:56,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2024-11-10 00:10:56,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:56,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2024-11-10 00:10:56,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:56,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2024-11-10 00:10:56,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:56,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2024-11-10 00:10:56,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:56,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2024-11-10 00:10:56,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:56,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2024-11-10 00:10:56,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:56,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2024-11-10 00:10:56,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:10:56,091 INFO L134 CoverageAnalysis]: Checked inductivity of 1285 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1285 trivial. 0 not checked. [2024-11-10 00:10:56,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:10:56,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240706886] [2024-11-10 00:10:56,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240706886] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:10:56,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:10:56,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-10 00:10:56,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413401832] [2024-11-10 00:10:56,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:10:56,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-10 00:10:56,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:10:56,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-10 00:10:56,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-10 00:10:56,096 INFO L87 Difference]: Start difference. First operand 200 states and 275 transitions. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2024-11-10 00:11:00,637 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-10 00:11:04,644 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-10 00:11:08,662 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-10 00:11:13,066 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-10 00:11:14,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:11:14,438 INFO L93 Difference]: Finished difference Result 508 states and 716 transitions. [2024-11-10 00:11:14,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-10 00:11:14,439 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 236 [2024-11-10 00:11:14,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:11:14,442 INFO L225 Difference]: With dead ends: 508 [2024-11-10 00:11:14,442 INFO L226 Difference]: Without dead ends: 362 [2024-11-10 00:11:14,443 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2024-11-10 00:11:14,443 INFO L432 NwaCegarLoop]: 190 mSDtfsCounter, 174 mSDsluCounter, 463 mSDsCounter, 0 mSdLazyCounter, 559 mSolverCounterSat, 93 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 653 SdHoareTripleChecker+Invalid, 656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 559 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.9s IncrementalHoareTripleChecker+Time [2024-11-10 00:11:14,444 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 653 Invalid, 656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 559 Invalid, 4 Unknown, 0 Unchecked, 17.9s Time] [2024-11-10 00:11:14,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2024-11-10 00:11:14,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 350. [2024-11-10 00:11:14,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 233 states have (on average 1.2446351931330473) internal successors, (290), 238 states have internal predecessors, (290), 91 states have call successors, (91), 20 states have call predecessors, (91), 25 states have return successors, (114), 91 states have call predecessors, (114), 91 states have call successors, (114) [2024-11-10 00:11:14,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 495 transitions. [2024-11-10 00:11:14,484 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 495 transitions. Word has length 236 [2024-11-10 00:11:14,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:11:14,484 INFO L471 AbstractCegarLoop]: Abstraction has 350 states and 495 transitions. [2024-11-10 00:11:14,485 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2024-11-10 00:11:14,485 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 495 transitions. [2024-11-10 00:11:14,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2024-11-10 00:11:14,488 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:11:14,489 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 12, 9, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:11:14,489 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-10 00:11:14,489 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:11:14,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:11:14,490 INFO L85 PathProgramCache]: Analyzing trace with hash 313402561, now seen corresponding path program 1 times [2024-11-10 00:11:14,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:11:14,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374255626] [2024-11-10 00:11:14,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:11:14,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:11:14,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:15,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-10 00:11:15,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:15,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 00:11:15,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:15,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 00:11:15,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:15,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-10 00:11:15,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:15,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-10 00:11:15,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:15,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 00:11:15,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:15,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-10 00:11:15,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:15,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-10 00:11:15,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:15,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 00:11:15,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:15,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-10 00:11:15,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:15,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-10 00:11:15,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:15,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 00:11:15,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:15,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-10 00:11:15,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:15,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-10 00:11:15,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:15,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-10 00:11:15,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:15,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-10 00:11:15,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:15,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-10 00:11:15,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:15,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-10 00:11:15,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:15,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-10 00:11:15,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:15,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-10 00:11:15,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:15,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-11-10 00:11:15,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:15,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-11-10 00:11:15,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:15,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-11-10 00:11:15,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:15,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-11-10 00:11:15,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:15,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-11-10 00:11:15,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:15,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2024-11-10 00:11:15,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:15,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2024-11-10 00:11:15,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:15,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2024-11-10 00:11:15,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:15,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2024-11-10 00:11:15,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:15,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2024-11-10 00:11:15,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:15,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2024-11-10 00:11:15,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:15,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2024-11-10 00:11:15,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:15,493 INFO L134 CoverageAnalysis]: Checked inductivity of 1285 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1285 trivial. 0 not checked. [2024-11-10 00:11:15,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:11:15,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374255626] [2024-11-10 00:11:15,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374255626] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:11:15,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:11:15,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-10 00:11:15,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580291125] [2024-11-10 00:11:15,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:11:15,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-10 00:11:15,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:11:15,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-10 00:11:15,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-10 00:11:15,495 INFO L87 Difference]: Start difference. First operand 350 states and 495 transitions. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2024-11-10 00:11:20,132 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-10 00:11:24,150 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-10 00:11:28,175 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-10 00:11:32,196 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-10 00:11:36,205 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-10 00:11:37,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:11:37,516 INFO L93 Difference]: Finished difference Result 631 states and 883 transitions. [2024-11-10 00:11:37,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-10 00:11:37,517 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 236 [2024-11-10 00:11:37,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:11:37,521 INFO L225 Difference]: With dead ends: 631 [2024-11-10 00:11:37,521 INFO L226 Difference]: Without dead ends: 326 [2024-11-10 00:11:37,523 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2024-11-10 00:11:37,523 INFO L432 NwaCegarLoop]: 191 mSDtfsCounter, 205 mSDsluCounter, 467 mSDsCounter, 0 mSdLazyCounter, 549 mSolverCounterSat, 164 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 658 SdHoareTripleChecker+Invalid, 718 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 164 IncrementalHoareTripleChecker+Valid, 549 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.6s IncrementalHoareTripleChecker+Time [2024-11-10 00:11:37,524 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 658 Invalid, 718 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [164 Valid, 549 Invalid, 5 Unknown, 0 Unchecked, 21.6s Time] [2024-11-10 00:11:37,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2024-11-10 00:11:37,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 317. [2024-11-10 00:11:37,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 212 states have (on average 1.2075471698113207) internal successors, (256), 216 states have internal predecessors, (256), 82 states have call successors, (82), 18 states have call predecessors, (82), 22 states have return successors, (96), 82 states have call predecessors, (96), 82 states have call successors, (96) [2024-11-10 00:11:37,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 434 transitions. [2024-11-10 00:11:37,560 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 434 transitions. Word has length 236 [2024-11-10 00:11:37,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:11:37,560 INFO L471 AbstractCegarLoop]: Abstraction has 317 states and 434 transitions. [2024-11-10 00:11:37,560 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2024-11-10 00:11:37,561 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 434 transitions. [2024-11-10 00:11:37,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2024-11-10 00:11:37,564 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:11:37,564 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 12, 9, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:11:37,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-10 00:11:37,564 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:11:37,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:11:37,565 INFO L85 PathProgramCache]: Analyzing trace with hash 589193347, now seen corresponding path program 1 times [2024-11-10 00:11:37,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:11:37,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613237440] [2024-11-10 00:11:37,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:11:37,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:11:37,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:38,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-10 00:11:38,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:38,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 00:11:38,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:38,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 00:11:38,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:38,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-10 00:11:38,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:38,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-10 00:11:38,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:38,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 00:11:38,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:38,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-10 00:11:38,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:39,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-10 00:11:39,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:39,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 00:11:39,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:39,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-10 00:11:39,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:39,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-10 00:11:39,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:39,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 00:11:39,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:39,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-10 00:11:39,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:39,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-10 00:11:39,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:39,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-10 00:11:39,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:39,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-10 00:11:39,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:39,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-10 00:11:39,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:39,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-10 00:11:39,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:39,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-10 00:11:39,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:39,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-10 00:11:39,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:39,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-11-10 00:11:39,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:39,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-11-10 00:11:39,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:39,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-11-10 00:11:39,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:39,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-11-10 00:11:39,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:39,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-11-10 00:11:39,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:39,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2024-11-10 00:11:39,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:39,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2024-11-10 00:11:39,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:39,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2024-11-10 00:11:39,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:39,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2024-11-10 00:11:39,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:39,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2024-11-10 00:11:39,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:39,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2024-11-10 00:11:39,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:39,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2024-11-10 00:11:39,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:39,143 INFO L134 CoverageAnalysis]: Checked inductivity of 1285 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1282 trivial. 0 not checked. [2024-11-10 00:11:39,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:11:39,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613237440] [2024-11-10 00:11:39,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613237440] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 00:11:39,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1995362842] [2024-11-10 00:11:39,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:11:39,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 00:11:39,145 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 00:11:39,148 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 00:11:39,153 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-10 00:11:39,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:39,868 INFO L255 TraceCheckSpWp]: Trace formula consists of 1756 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-10 00:11:39,876 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 00:11:40,012 INFO L134 CoverageAnalysis]: Checked inductivity of 1285 backedges. 320 proven. 4 refuted. 0 times theorem prover too weak. 961 trivial. 0 not checked. [2024-11-10 00:11:40,013 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 00:11:40,445 INFO L134 CoverageAnalysis]: Checked inductivity of 1285 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1281 trivial. 0 not checked. [2024-11-10 00:11:40,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1995362842] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 00:11:40,445 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 00:11:40,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 6, 5] total 16 [2024-11-10 00:11:40,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665915062] [2024-11-10 00:11:40,446 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 00:11:40,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-10 00:11:40,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:11:40,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-10 00:11:40,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2024-11-10 00:11:40,448 INFO L87 Difference]: Start difference. First operand 317 states and 434 transitions. Second operand has 16 states, 16 states have (on average 5.8125) internal successors, (93), 12 states have internal predecessors, (93), 9 states have call successors, (60), 8 states have call predecessors, (60), 7 states have return successors, (59), 7 states have call predecessors, (59), 9 states have call successors, (59) [2024-11-10 00:11:44,465 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-10 00:11:48,479 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-10 00:11:52,499 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-10 00:11:54,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:11:54,640 INFO L93 Difference]: Finished difference Result 614 states and 864 transitions. [2024-11-10 00:11:54,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-10 00:11:54,641 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 5.8125) internal successors, (93), 12 states have internal predecessors, (93), 9 states have call successors, (60), 8 states have call predecessors, (60), 7 states have return successors, (59), 7 states have call predecessors, (59), 9 states have call successors, (59) Word has length 236 [2024-11-10 00:11:54,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:11:54,645 INFO L225 Difference]: With dead ends: 614 [2024-11-10 00:11:54,645 INFO L226 Difference]: Without dead ends: 341 [2024-11-10 00:11:54,649 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 561 GetRequests, 535 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=203, Invalid=553, Unknown=0, NotChecked=0, Total=756 [2024-11-10 00:11:54,650 INFO L432 NwaCegarLoop]: 155 mSDtfsCounter, 340 mSDsluCounter, 515 mSDsCounter, 0 mSdLazyCounter, 691 mSolverCounterSat, 272 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 349 SdHoareTripleChecker+Valid, 670 SdHoareTripleChecker+Invalid, 966 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 272 IncrementalHoareTripleChecker+Valid, 691 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.5s IncrementalHoareTripleChecker+Time [2024-11-10 00:11:54,650 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [349 Valid, 670 Invalid, 966 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [272 Valid, 691 Invalid, 3 Unknown, 0 Unchecked, 13.5s Time] [2024-11-10 00:11:54,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2024-11-10 00:11:54,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 334. [2024-11-10 00:11:54,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 228 states have (on average 1.2324561403508771) internal successors, (281), 232 states have internal predecessors, (281), 75 states have call successors, (75), 26 states have call predecessors, (75), 30 states have return successors, (99), 75 states have call predecessors, (99), 75 states have call successors, (99) [2024-11-10 00:11:54,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 455 transitions. [2024-11-10 00:11:54,693 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 455 transitions. Word has length 236 [2024-11-10 00:11:54,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:11:54,693 INFO L471 AbstractCegarLoop]: Abstraction has 334 states and 455 transitions. [2024-11-10 00:11:54,694 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 5.8125) internal successors, (93), 12 states have internal predecessors, (93), 9 states have call successors, (60), 8 states have call predecessors, (60), 7 states have return successors, (59), 7 states have call predecessors, (59), 9 states have call successors, (59) [2024-11-10 00:11:54,694 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 455 transitions. [2024-11-10 00:11:54,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2024-11-10 00:11:54,696 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:11:54,696 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 12, 9, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:11:54,723 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-10 00:11:54,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 00:11:54,896 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:11:54,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:11:54,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1612776643, now seen corresponding path program 1 times [2024-11-10 00:11:54,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:11:54,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637129921] [2024-11-10 00:11:54,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:11:54,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:11:55,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:57,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-10 00:11:58,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:58,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 00:11:58,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:58,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 00:11:58,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:58,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-10 00:11:58,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:58,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-10 00:11:58,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:58,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 00:11:58,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:58,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-10 00:11:58,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:59,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-10 00:11:59,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:59,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 00:11:59,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:59,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-10 00:11:59,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:59,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-10 00:11:59,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:59,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 00:11:59,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:59,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-10 00:11:59,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:59,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-10 00:11:59,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:59,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-10 00:11:59,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:59,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-10 00:11:59,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:59,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-10 00:11:59,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:59,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-10 00:11:59,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:59,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-10 00:11:59,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:59,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-10 00:11:59,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:59,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-11-10 00:11:59,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:59,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-11-10 00:11:59,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:59,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-11-10 00:11:59,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:59,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-11-10 00:11:59,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:59,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-11-10 00:11:59,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:59,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2024-11-10 00:11:59,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:59,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2024-11-10 00:11:59,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:59,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2024-11-10 00:11:59,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:59,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2024-11-10 00:11:59,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:59,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2024-11-10 00:11:59,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:59,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2024-11-10 00:11:59,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:59,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2024-11-10 00:11:59,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:59,229 INFO L134 CoverageAnalysis]: Checked inductivity of 1285 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1282 trivial. 0 not checked. [2024-11-10 00:11:59,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:11:59,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637129921] [2024-11-10 00:11:59,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637129921] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 00:11:59,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [916971902] [2024-11-10 00:11:59,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:11:59,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 00:11:59,231 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 00:11:59,232 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 00:11:59,233 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-10 00:11:59,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:59,990 INFO L255 TraceCheckSpWp]: Trace formula consists of 1854 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-11-10 00:11:59,997 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 00:12:00,265 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-10 00:12:00,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-10 00:12:00,508 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-10 00:12:00,508 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 15 [2024-11-10 00:12:00,635 INFO L349 Elim1Store]: treesize reduction 33, result has 25.0 percent of original size [2024-11-10 00:12:00,635 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24