./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-pthread/cs_stack-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-pthread/cs_stack-1.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 f673ebb9e7e04aacff207de4acfe748a76999a1319247236c14ae51e44f23889 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 04:07:14,754 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 04:07:14,820 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 04:07:14,824 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 04:07:14,825 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 04:07:14,853 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 04:07:14,853 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 04:07:14,854 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 04:07:14,854 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 04:07:14,855 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 04:07:14,855 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 04:07:14,855 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 04:07:14,856 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 04:07:14,856 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 04:07:14,857 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 04:07:14,857 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 04:07:14,857 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 04:07:14,858 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 04:07:14,858 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 04:07:14,858 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 04:07:14,859 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 04:07:14,859 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 04:07:14,859 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 04:07:14,860 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 04:07:14,860 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 04:07:14,860 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 04:07:14,861 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 04:07:14,861 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 04:07:14,861 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 04:07:14,861 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 04:07:14,862 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 04:07:14,862 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 04:07:14,862 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 04:07:14,863 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 04:07:14,863 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 04:07:14,863 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 04:07:14,863 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 04:07:14,864 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 04:07:14,864 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 04:07:14,864 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 04:07:14,864 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 04:07:14,865 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 04:07:14,865 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f673ebb9e7e04aacff207de4acfe748a76999a1319247236c14ae51e44f23889 [2024-10-14 04:07:15,125 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 04:07:15,153 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 04:07:15,157 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 04:07:15,159 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 04:07:15,159 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 04:07:15,160 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-pthread/cs_stack-1.i [2024-10-14 04:07:16,749 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 04:07:17,064 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 04:07:17,065 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-pthread/cs_stack-1.i [2024-10-14 04:07:17,095 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e29d0df1d/1e28a4cae07f4fd9b4bad9a130d5ec18/FLAG98e19897e [2024-10-14 04:07:17,111 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e29d0df1d/1e28a4cae07f4fd9b4bad9a130d5ec18 [2024-10-14 04:07:17,114 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 04:07:17,115 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 04:07:17,118 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 04:07:17,119 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 04:07:17,125 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 04:07:17,126 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:07:17" (1/1) ... [2024-10-14 04:07:17,128 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3724633f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:07:17, skipping insertion in model container [2024-10-14 04:07:17,128 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:07:17" (1/1) ... [2024-10-14 04:07:17,185 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 04:07:17,579 WARN L248 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_stack-1.i[34744,34757] [2024-10-14 04:07:17,706 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 04:07:17,720 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 04:07:17,764 WARN L248 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_stack-1.i[34744,34757] [2024-10-14 04:07:17,839 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 04:07:17,905 INFO L204 MainTranslator]: Completed translation [2024-10-14 04:07:17,905 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:07:17 WrapperNode [2024-10-14 04:07:17,906 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 04:07:17,907 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 04:07:17,907 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 04:07:17,908 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 04:07:17,914 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:07:17" (1/1) ... [2024-10-14 04:07:17,955 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:07:17" (1/1) ... [2024-10-14 04:07:18,022 INFO L138 Inliner]: procedures = 254, calls = 274, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 651 [2024-10-14 04:07:18,022 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 04:07:18,027 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 04:07:18,027 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 04:07:18,027 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 04:07:18,038 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:07:17" (1/1) ... [2024-10-14 04:07:18,039 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:07:17" (1/1) ... [2024-10-14 04:07:18,051 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:07:17" (1/1) ... [2024-10-14 04:07:18,102 INFO L175 MemorySlicer]: Split 130 memory accesses to 17 slices as follows [2, 8, 8, 7, 20, 12, 12, 6, 4, 5, 12, 3, 0, 7, 8, 13, 3]. 15 percent of accesses are in the largest equivalence class. The 30 initializations are split as follows [2, 3, 3, 0, 6, 6, 2, 2, 2, 2, 0, 0, 0, 0, 2, 0, 0]. The 38 writes are split as follows [0, 2, 2, 1, 8, 3, 3, 2, 1, 1, 2, 1, 0, 1, 3, 7, 1]. [2024-10-14 04:07:18,103 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:07:17" (1/1) ... [2024-10-14 04:07:18,103 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:07:17" (1/1) ... [2024-10-14 04:07:18,135 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:07:17" (1/1) ... [2024-10-14 04:07:18,141 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:07:17" (1/1) ... [2024-10-14 04:07:18,149 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:07:17" (1/1) ... [2024-10-14 04:07:18,155 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:07:17" (1/1) ... [2024-10-14 04:07:18,167 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 04:07:18,168 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 04:07:18,168 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 04:07:18,168 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 04:07:18,169 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:07:17" (1/1) ... [2024-10-14 04:07:18,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 04:07:18,192 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 04:07:18,210 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) [2024-10-14 04:07:18,216 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 [2024-10-14 04:07:18,258 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-14 04:07:18,258 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-14 04:07:18,260 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-14 04:07:18,260 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_lock [2024-10-14 04:07:18,260 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_lock [2024-10-14 04:07:18,260 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-14 04:07:18,260 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-14 04:07:18,261 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-14 04:07:18,262 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-10-14 04:07:18,262 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-10-14 04:07:18,262 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-10-14 04:07:18,262 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-10-14 04:07:18,263 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-10-14 04:07:18,263 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-10-14 04:07:18,263 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-10-14 04:07:18,263 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-10-14 04:07:18,263 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-10-14 04:07:18,263 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2024-10-14 04:07:18,263 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2024-10-14 04:07:18,263 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2024-10-14 04:07:18,264 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2024-10-14 04:07:18,264 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#16 [2024-10-14 04:07:18,264 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-14 04:07:18,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-10-14 04:07:18,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-10-14 04:07:18,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-10-14 04:07:18,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-10-14 04:07:18,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-10-14 04:07:18,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-10-14 04:07:18,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-10-14 04:07:18,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-10-14 04:07:18,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-10-14 04:07:18,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-10-14 04:07:18,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2024-10-14 04:07:18,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2024-10-14 04:07:18,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2024-10-14 04:07:18,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2024-10-14 04:07:18,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2024-10-14 04:07:18,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#15 [2024-10-14 04:07:18,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#16 [2024-10-14 04:07:18,267 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_unlock [2024-10-14 04:07:18,267 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_unlock [2024-10-14 04:07:18,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-14 04:07:18,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-14 04:07:18,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-14 04:07:18,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-14 04:07:18,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-14 04:07:18,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-10-14 04:07:18,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-10-14 04:07:18,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-10-14 04:07:18,269 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-10-14 04:07:18,269 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-10-14 04:07:18,269 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-10-14 04:07:18,269 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-10-14 04:07:18,269 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-10-14 04:07:18,269 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-10-14 04:07:18,269 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-10-14 04:07:18,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2024-10-14 04:07:18,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2024-10-14 04:07:18,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-14 04:07:18,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-14 04:07:18,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-14 04:07:18,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-14 04:07:18,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-10-14 04:07:18,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-10-14 04:07:18,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-10-14 04:07:18,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-10-14 04:07:18,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-10-14 04:07:18,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-10-14 04:07:18,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-10-14 04:07:18,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-10-14 04:07:18,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-10-14 04:07:18,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-10-14 04:07:18,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-10-14 04:07:18,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2024-10-14 04:07:18,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2024-10-14 04:07:18,274 INFO L130 BoogieDeclarations]: Found specification of procedure get_top [2024-10-14 04:07:18,274 INFO L138 BoogieDeclarations]: Found implementation of procedure get_top [2024-10-14 04:07:18,274 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 04:07:18,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-14 04:07:18,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-14 04:07:18,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-14 04:07:18,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-10-14 04:07:18,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-10-14 04:07:18,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-10-14 04:07:18,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-10-14 04:07:18,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-10-14 04:07:18,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-10-14 04:07:18,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-10-14 04:07:18,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-10-14 04:07:18,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2024-10-14 04:07:18,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2024-10-14 04:07:18,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2024-10-14 04:07:18,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2024-10-14 04:07:18,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2024-10-14 04:07:18,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#16 [2024-10-14 04:07:18,276 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_create [2024-10-14 04:07:18,276 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_create [2024-10-14 04:07:18,276 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_join [2024-10-14 04:07:18,276 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_join [2024-10-14 04:07:18,276 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2024-10-14 04:07:18,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2024-10-14 04:07:18,277 INFO L130 BoogieDeclarations]: Found specification of procedure error [2024-10-14 04:07:18,277 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2024-10-14 04:07:18,277 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_cs [2024-10-14 04:07:18,277 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_cs [2024-10-14 04:07:18,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 04:07:18,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-14 04:07:18,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-14 04:07:18,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-14 04:07:18,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-14 04:07:18,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-10-14 04:07:18,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-10-14 04:07:18,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-10-14 04:07:18,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-10-14 04:07:18,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-10-14 04:07:18,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-10-14 04:07:18,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-10-14 04:07:18,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-10-14 04:07:18,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-10-14 04:07:18,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-10-14 04:07:18,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-10-14 04:07:18,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-10-14 04:07:18,282 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 04:07:18,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 04:07:18,554 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 04:07:18,557 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 04:07:18,608 INFO L733 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2024-10-14 04:07:18,608 INFO L733 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);#res := 0; [2024-10-14 04:07:19,121 INFO L733 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##97: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2024-10-14 04:07:19,121 INFO L733 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##96: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);push_#res#1 := 0; [2024-10-14 04:07:19,121 INFO L733 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##54: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2024-10-14 04:07:19,122 INFO L733 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##53: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);pop_#res#1 := 0; [2024-10-14 04:07:19,122 INFO L733 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##58: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2024-10-14 04:07:19,122 INFO L733 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##57: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);pop_#res#1 := 0; [2024-10-14 04:07:19,122 INFO L733 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##43: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2024-10-14 04:07:19,122 INFO L733 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##42: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);pop_#res#1 := 0; [2024-10-14 04:07:19,122 INFO L733 $ProcedureCfgBuilder]: dead code at ProgramPoint L1005: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);pop_#res#1 := 0; [2024-10-14 04:07:19,122 INFO L733 $ProcedureCfgBuilder]: dead code at ProgramPoint L1005: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296));pop_#res#1 := 0; [2024-10-14 04:07:19,122 INFO L733 $ProcedureCfgBuilder]: dead code at ProgramPoint L989-2: SUMMARY for call __CS_cs(); srcloc: null [2024-10-14 04:07:19,122 INFO L733 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##111: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);push_#res#1 := 0; [2024-10-14 04:07:19,122 INFO L733 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##112: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2024-10-14 04:07:19,140 INFO L733 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##8: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2024-10-14 04:07:19,141 INFO L733 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296); [2024-10-14 04:07:19,141 INFO L733 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##7: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296); [2024-10-14 04:07:19,141 INFO L733 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2024-10-14 04:07:19,141 INFO L733 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2024-10-14 04:07:19,141 INFO L733 $ProcedureCfgBuilder]: dead code at ProgramPoint L933: SUMMARY for call __CS_cs(); srcloc: null [2024-10-14 04:07:19,141 INFO L733 $ProcedureCfgBuilder]: dead code at ProgramPoint L933-1: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296); [2024-10-14 04:07:19,141 INFO L733 $ProcedureCfgBuilder]: dead code at ProgramPoint L933-1: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2024-10-14 04:07:19,141 INFO L733 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296); [2024-10-14 04:07:23,454 INFO L? ?]: Removed 95 outVars from TransFormulas that were not future-live. [2024-10-14 04:07:23,454 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 04:07:23,499 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 04:07:23,500 INFO L314 CfgBuilder]: Removed 5 assume(true) statements. [2024-10-14 04:07:23,500 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:07:23 BoogieIcfgContainer [2024-10-14 04:07:23,500 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 04:07:23,502 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 04:07:23,502 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 04:07:23,505 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 04:07:23,505 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 04:07:17" (1/3) ... [2024-10-14 04:07:23,506 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43b41168 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:07:23, skipping insertion in model container [2024-10-14 04:07:23,506 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:07:17" (2/3) ... [2024-10-14 04:07:23,507 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43b41168 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:07:23, skipping insertion in model container [2024-10-14 04:07:23,507 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:07:23" (3/3) ... [2024-10-14 04:07:23,508 INFO L112 eAbstractionObserver]: Analyzing ICFG cs_stack-1.i [2024-10-14 04:07:23,524 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 04:07:23,524 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 04:07:23,628 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 04:07:23,636 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;@12aa1d91, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 04:07:23,636 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 04:07:23,642 INFO L276 IsEmpty]: Start isEmpty. Operand has 212 states, 128 states have (on average 1.578125) internal successors, (202), 131 states have internal predecessors, (202), 73 states have call successors, (73), 9 states have call predecessors, (73), 9 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2024-10-14 04:07:23,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-10-14 04:07:23,667 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:07:23,667 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:07:23,668 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:07:23,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:07:23,674 INFO L85 PathProgramCache]: Analyzing trace with hash 793737601, now seen corresponding path program 1 times [2024-10-14 04:07:23,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:07:23,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564971600] [2024-10-14 04:07:23,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:07:23,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:07:23,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:24,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-14 04:07:24,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:24,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-14 04:07:24,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:24,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 04:07:24,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:24,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-14 04:07:24,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:24,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-14 04:07:24,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:24,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-14 04:07:24,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:24,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-14 04:07:24,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:24,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 04:07:24,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:24,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 04:07:24,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:24,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-14 04:07:24,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:24,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-14 04:07:24,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:24,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-14 04:07:24,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:24,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-14 04:07:24,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:24,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-14 04:07:24,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:24,275 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-14 04:07:24,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:07:24,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564971600] [2024-10-14 04:07:24,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564971600] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:07:24,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:07:24,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 04:07:24,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982677952] [2024-10-14 04:07:24,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:07:24,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 04:07:24,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:07:24,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 04:07:24,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 04:07:24,312 INFO L87 Difference]: Start difference. First operand has 212 states, 128 states have (on average 1.578125) internal successors, (202), 131 states have internal predecessors, (202), 73 states have call successors, (73), 9 states have call predecessors, (73), 9 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 04:07:24,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:07:24,476 INFO L93 Difference]: Finished difference Result 428 states and 773 transitions. [2024-10-14 04:07:24,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 04:07:24,480 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 95 [2024-10-14 04:07:24,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:07:24,496 INFO L225 Difference]: With dead ends: 428 [2024-10-14 04:07:24,496 INFO L226 Difference]: Without dead ends: 215 [2024-10-14 04:07:24,507 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 04:07:24,512 INFO L432 NwaCegarLoop]: 328 mSDtfsCounter, 6 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 655 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 04:07:24,514 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 655 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 04:07:24,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2024-10-14 04:07:24,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 211. [2024-10-14 04:07:24,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 128 states have (on average 1.515625) internal successors, (194), 130 states have internal predecessors, (194), 73 states have call successors, (73), 9 states have call predecessors, (73), 9 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2024-10-14 04:07:24,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 340 transitions. [2024-10-14 04:07:24,604 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 340 transitions. Word has length 95 [2024-10-14 04:07:24,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:07:24,606 INFO L471 AbstractCegarLoop]: Abstraction has 211 states and 340 transitions. [2024-10-14 04:07:24,606 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 04:07:24,607 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 340 transitions. [2024-10-14 04:07:24,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-10-14 04:07:24,617 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:07:24,618 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:07:24,618 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 04:07:24,619 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:07:24,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:07:24,620 INFO L85 PathProgramCache]: Analyzing trace with hash 1233001572, now seen corresponding path program 1 times [2024-10-14 04:07:24,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:07:24,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083531580] [2024-10-14 04:07:24,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:07:24,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:07:24,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:24,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 04:07:24,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:24,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 04:07:24,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:24,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 04:07:24,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:24,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 04:07:24,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:24,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 04:07:24,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:24,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 04:07:24,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:24,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 04:07:24,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:24,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 04:07:24,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:24,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 04:07:24,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:24,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 04:07:24,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:24,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 04:07:24,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:24,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 04:07:24,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:24,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 04:07:24,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:24,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 04:07:24,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:24,970 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-14 04:07:24,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:07:24,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083531580] [2024-10-14 04:07:24,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083531580] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:07:24,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:07:24,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 04:07:24,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913690820] [2024-10-14 04:07:24,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:07:24,974 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 04:07:24,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:07:24,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 04:07:24,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 04:07:24,977 INFO L87 Difference]: Start difference. First operand 211 states and 340 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 04:07:25,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:07:25,078 INFO L93 Difference]: Finished difference Result 422 states and 682 transitions. [2024-10-14 04:07:25,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 04:07:25,079 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 100 [2024-10-14 04:07:25,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:07:25,085 INFO L225 Difference]: With dead ends: 422 [2024-10-14 04:07:25,085 INFO L226 Difference]: Without dead ends: 213 [2024-10-14 04:07:25,087 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 04:07:25,088 INFO L432 NwaCegarLoop]: 329 mSDtfsCounter, 0 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 654 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 04:07:25,089 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 654 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 04:07:25,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2024-10-14 04:07:25,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 213. [2024-10-14 04:07:25,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 130 states have (on average 1.5076923076923077) internal successors, (196), 132 states have internal predecessors, (196), 73 states have call successors, (73), 9 states have call predecessors, (73), 9 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2024-10-14 04:07:25,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 342 transitions. [2024-10-14 04:07:25,120 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 342 transitions. Word has length 100 [2024-10-14 04:07:25,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:07:25,121 INFO L471 AbstractCegarLoop]: Abstraction has 213 states and 342 transitions. [2024-10-14 04:07:25,121 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 04:07:25,121 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 342 transitions. [2024-10-14 04:07:25,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-10-14 04:07:25,124 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:07:25,124 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:07:25,125 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 04:07:25,125 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:07:25,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:07:25,126 INFO L85 PathProgramCache]: Analyzing trace with hash -631579465, now seen corresponding path program 1 times [2024-10-14 04:07:25,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:07:25,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632337458] [2024-10-14 04:07:25,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:07:25,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:07:25,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:25,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-14 04:07:25,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:25,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-14 04:07:25,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:25,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 04:07:25,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:25,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-14 04:07:25,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:25,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 04:07:25,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:25,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 04:07:25,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:25,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-14 04:07:25,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:25,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 04:07:25,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:25,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-14 04:07:25,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:25,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-14 04:07:25,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:25,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-14 04:07:25,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:25,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-14 04:07:25,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:25,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-14 04:07:25,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:25,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-14 04:07:25,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:25,477 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 365 trivial. 0 not checked. [2024-10-14 04:07:25,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:07:25,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632337458] [2024-10-14 04:07:25,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632337458] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 04:07:25,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1533574867] [2024-10-14 04:07:25,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:07:25,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 04:07:25,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 04:07:25,485 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) [2024-10-14 04:07:25,506 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 04:07:25,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:25,905 INFO L255 TraceCheckSpWp]: Trace formula consists of 752 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-14 04:07:25,916 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 04:07:25,956 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 365 trivial. 0 not checked. [2024-10-14 04:07:25,956 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 04:07:26,048 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 365 trivial. 0 not checked. [2024-10-14 04:07:26,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1533574867] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 04:07:26,049 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 04:07:26,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2024-10-14 04:07:26,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702902390] [2024-10-14 04:07:26,049 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 04:07:26,050 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 04:07:26,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:07:26,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 04:07:26,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 04:07:26,051 INFO L87 Difference]: Start difference. First operand 213 states and 342 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 1 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-10-14 04:07:26,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:07:26,126 INFO L93 Difference]: Finished difference Result 428 states and 690 transitions. [2024-10-14 04:07:26,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 04:07:26,127 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 1 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 102 [2024-10-14 04:07:26,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:07:26,130 INFO L225 Difference]: With dead ends: 428 [2024-10-14 04:07:26,130 INFO L226 Difference]: Without dead ends: 217 [2024-10-14 04:07:26,131 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 229 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 04:07:26,132 INFO L432 NwaCegarLoop]: 329 mSDtfsCounter, 0 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 654 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 04:07:26,133 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 654 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 04:07:26,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2024-10-14 04:07:26,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2024-10-14 04:07:26,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 134 states have (on average 1.492537313432836) internal successors, (200), 136 states have internal predecessors, (200), 73 states have call successors, (73), 9 states have call predecessors, (73), 9 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2024-10-14 04:07:26,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 346 transitions. [2024-10-14 04:07:26,165 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 346 transitions. Word has length 102 [2024-10-14 04:07:26,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:07:26,165 INFO L471 AbstractCegarLoop]: Abstraction has 217 states and 346 transitions. [2024-10-14 04:07:26,166 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 1 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-10-14 04:07:26,166 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 346 transitions. [2024-10-14 04:07:26,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-10-14 04:07:26,168 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:07:26,169 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:07:26,190 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-14 04:07:26,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 04:07:26,373 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:07:26,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:07:26,373 INFO L85 PathProgramCache]: Analyzing trace with hash 903316247, now seen corresponding path program 2 times [2024-10-14 04:07:26,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:07:26,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544699031] [2024-10-14 04:07:26,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:07:26,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:07:26,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:26,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 04:07:26,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:26,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 04:07:26,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:26,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 04:07:26,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:26,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 04:07:26,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:26,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 04:07:26,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:26,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 04:07:26,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:26,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 04:07:26,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:26,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 04:07:26,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:26,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 04:07:26,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:26,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 04:07:26,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:26,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 04:07:26,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:26,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 04:07:26,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:26,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 04:07:26,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:26,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 04:07:26,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:26,657 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 376 trivial. 0 not checked. [2024-10-14 04:07:26,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:07:26,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544699031] [2024-10-14 04:07:26,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544699031] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 04:07:26,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1473057865] [2024-10-14 04:07:26,660 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-14 04:07:26,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 04:07:26,660 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 04:07:26,663 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) [2024-10-14 04:07:26,665 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-14 04:07:27,022 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-14 04:07:27,023 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 04:07:27,026 INFO L255 TraceCheckSpWp]: Trace formula consists of 481 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-14 04:07:27,030 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 04:07:27,212 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2024-10-14 04:07:27,212 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 04:07:27,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1473057865] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:07:27,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 04:07:27,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-10-14 04:07:27,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355561806] [2024-10-14 04:07:27,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:07:27,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 04:07:27,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:07:27,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 04:07:27,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 04:07:27,215 INFO L87 Difference]: Start difference. First operand 217 states and 346 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 04:07:27,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:07:27,326 INFO L93 Difference]: Finished difference Result 418 states and 680 transitions. [2024-10-14 04:07:27,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 04:07:27,327 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 106 [2024-10-14 04:07:27,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:07:27,334 INFO L225 Difference]: With dead ends: 418 [2024-10-14 04:07:27,335 INFO L226 Difference]: Without dead ends: 384 [2024-10-14 04:07:27,336 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:07:27,337 INFO L432 NwaCegarLoop]: 352 mSDtfsCounter, 273 mSDsluCounter, 667 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 1019 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 04:07:27,338 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [273 Valid, 1019 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 04:07:27,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2024-10-14 04:07:27,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 384. [2024-10-14 04:07:27,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 234 states have (on average 1.5384615384615385) internal successors, (360), 238 states have internal predecessors, (360), 131 states have call successors, (131), 18 states have call predecessors, (131), 18 states have return successors, (139), 131 states have call predecessors, (139), 131 states have call successors, (139) [2024-10-14 04:07:27,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 630 transitions. [2024-10-14 04:07:27,390 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 630 transitions. Word has length 106 [2024-10-14 04:07:27,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:07:27,390 INFO L471 AbstractCegarLoop]: Abstraction has 384 states and 630 transitions. [2024-10-14 04:07:27,390 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 04:07:27,391 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 630 transitions. [2024-10-14 04:07:27,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-10-14 04:07:27,398 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:07:27,398 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 5, 5, 5, 5, 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] [2024-10-14 04:07:27,417 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-14 04:07:27,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2024-10-14 04:07:27,599 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:07:27,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:07:27,600 INFO L85 PathProgramCache]: Analyzing trace with hash -2137871054, now seen corresponding path program 1 times [2024-10-14 04:07:27,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:07:27,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918444354] [2024-10-14 04:07:27,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:07:27,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:07:27,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:28,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 04:07:28,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:28,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:07:28,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:28,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 04:07:28,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:28,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-14 04:07:28,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:28,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 04:07:28,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:28,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-14 04:07:28,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:28,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 04:07:28,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:28,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 04:07:28,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:28,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 04:07:28,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:28,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 04:07:28,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:28,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 04:07:28,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:28,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-14 04:07:28,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:28,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-14 04:07:28,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:28,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 04:07:28,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:28,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-14 04:07:28,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:28,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 04:07:28,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:28,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 04:07:28,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:28,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-14 04:07:28,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:28,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-14 04:07:28,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:28,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-10-14 04:07:28,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:28,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-10-14 04:07:28,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:28,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-14 04:07:28,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:28,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-14 04:07:28,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:28,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-10-14 04:07:28,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:28,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-10-14 04:07:28,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:28,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-10-14 04:07:28,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:28,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-14 04:07:28,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:28,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-10-14 04:07:28,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:28,275 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 740 trivial. 0 not checked. [2024-10-14 04:07:28,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:07:28,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918444354] [2024-10-14 04:07:28,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918444354] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 04:07:28,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [368328283] [2024-10-14 04:07:28,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:07:28,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 04:07:28,276 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 04:07:28,278 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) [2024-10-14 04:07:28,279 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-14 04:07:28,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:28,780 INFO L255 TraceCheckSpWp]: Trace formula consists of 1333 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-14 04:07:28,789 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 04:07:28,854 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 734 trivial. 0 not checked. [2024-10-14 04:07:28,856 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 04:07:29,106 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 734 trivial. 0 not checked. [2024-10-14 04:07:29,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [368328283] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 04:07:29,107 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 04:07:29,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 13 [2024-10-14 04:07:29,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056177742] [2024-10-14 04:07:29,107 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 04:07:29,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-14 04:07:29,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:07:29,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-14 04:07:29,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2024-10-14 04:07:29,109 INFO L87 Difference]: Start difference. First operand 384 states and 630 transitions. Second operand has 13 states, 13 states have (on average 7.538461538461538) internal successors, (98), 9 states have internal predecessors, (98), 2 states have call successors, (57), 6 states have call predecessors, (57), 2 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2024-10-14 04:07:31,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:07:31,033 INFO L93 Difference]: Finished difference Result 797 states and 1306 transitions. [2024-10-14 04:07:31,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-14 04:07:31,034 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.538461538461538) internal successors, (98), 9 states have internal predecessors, (98), 2 states have call successors, (57), 6 states have call predecessors, (57), 2 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) Word has length 182 [2024-10-14 04:07:31,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:07:31,039 INFO L225 Difference]: With dead ends: 797 [2024-10-14 04:07:31,039 INFO L226 Difference]: Without dead ends: 415 [2024-10-14 04:07:31,041 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 443 GetRequests, 417 SyntacticMatches, 3 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=149, Invalid=451, Unknown=0, NotChecked=0, Total=600 [2024-10-14 04:07:31,042 INFO L432 NwaCegarLoop]: 242 mSDtfsCounter, 221 mSDsluCounter, 1022 mSDsCounter, 0 mSdLazyCounter, 1061 mSolverCounterSat, 316 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 1264 SdHoareTripleChecker+Invalid, 1377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 316 IncrementalHoareTripleChecker+Valid, 1061 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-14 04:07:31,042 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [264 Valid, 1264 Invalid, 1377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [316 Valid, 1061 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-14 04:07:31,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2024-10-14 04:07:31,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 403. [2024-10-14 04:07:31,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 251 states have (on average 1.5099601593625498) internal successors, (379), 257 states have internal predecessors, (379), 131 states have call successors, (131), 18 states have call predecessors, (131), 20 states have return successors, (143), 131 states have call predecessors, (143), 131 states have call successors, (143) [2024-10-14 04:07:31,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 653 transitions. [2024-10-14 04:07:31,095 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 653 transitions. Word has length 182 [2024-10-14 04:07:31,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:07:31,095 INFO L471 AbstractCegarLoop]: Abstraction has 403 states and 653 transitions. [2024-10-14 04:07:31,096 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.538461538461538) internal successors, (98), 9 states have internal predecessors, (98), 2 states have call successors, (57), 6 states have call predecessors, (57), 2 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2024-10-14 04:07:31,096 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 653 transitions. [2024-10-14 04:07:31,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2024-10-14 04:07:31,100 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:07:31,101 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 10, 6, 5, 5, 5, 5, 2, 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] [2024-10-14 04:07:31,121 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-14 04:07:31,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 04:07:31,302 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:07:31,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:07:31,302 INFO L85 PathProgramCache]: Analyzing trace with hash 980289067, now seen corresponding path program 1 times [2024-10-14 04:07:31,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:07:31,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996830296] [2024-10-14 04:07:31,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:07:31,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:07:31,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:32,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-14 04:07:32,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:32,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-14 04:07:32,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:32,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 04:07:32,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:32,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 04:07:32,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:32,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 04:07:32,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:32,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 04:07:32,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:32,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-14 04:07:32,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:32,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 04:07:32,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:32,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-14 04:07:32,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:32,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 04:07:32,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:32,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 04:07:32,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:32,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 04:07:32,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:32,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 04:07:32,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:32,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 04:07:32,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:32,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-14 04:07:32,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:32,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-14 04:07:32,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:32,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-10-14 04:07:32,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:32,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-10-14 04:07:32,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:32,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-14 04:07:32,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:32,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-14 04:07:32,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:32,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-10-14 04:07:32,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:32,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-10-14 04:07:32,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:32,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-10-14 04:07:32,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:32,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-14 04:07:32,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:32,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-10-14 04:07:32,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:32,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-14 04:07:32,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:32,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-10-14 04:07:32,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:32,442 INFO L134 CoverageAnalysis]: Checked inductivity of 823 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 823 trivial. 0 not checked. [2024-10-14 04:07:32,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:07:32,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996830296] [2024-10-14 04:07:32,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996830296] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:07:32,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:07:32,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 04:07:32,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702754426] [2024-10-14 04:07:32,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:07:32,444 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 04:07:32,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:07:32,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 04:07:32,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-14 04:07:32,445 INFO L87 Difference]: Start difference. First operand 403 states and 653 transitions. Second operand has 8 states, 8 states have (on average 7.375) internal successors, (59), 4 states have internal predecessors, (59), 4 states have call successors, (23), 5 states have call predecessors, (23), 2 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2024-10-14 04:07:37,120 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 [] [2024-10-14 04:07:41,250 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 [] [2024-10-14 04:07:43,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:07:43,467 INFO L93 Difference]: Finished difference Result 833 states and 1363 transitions. [2024-10-14 04:07:43,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 04:07:43,468 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 4 states have internal predecessors, (59), 4 states have call successors, (23), 5 states have call predecessors, (23), 2 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) Word has length 194 [2024-10-14 04:07:43,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:07:43,475 INFO L225 Difference]: With dead ends: 833 [2024-10-14 04:07:43,475 INFO L226 Difference]: Without dead ends: 795 [2024-10-14 04:07:43,476 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=93, Invalid=179, Unknown=0, NotChecked=0, Total=272 [2024-10-14 04:07:43,477 INFO L432 NwaCegarLoop]: 326 mSDtfsCounter, 427 mSDsluCounter, 774 mSDsCounter, 0 mSdLazyCounter, 937 mSolverCounterSat, 184 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 466 SdHoareTripleChecker+Valid, 1100 SdHoareTripleChecker+Invalid, 1123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 184 IncrementalHoareTripleChecker+Valid, 937 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2024-10-14 04:07:43,477 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [466 Valid, 1100 Invalid, 1123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [184 Valid, 937 Invalid, 2 Unknown, 0 Unchecked, 10.5s Time] [2024-10-14 04:07:43,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 795 states. [2024-10-14 04:07:43,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 795 to 777. [2024-10-14 04:07:43,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 777 states, 472 states have (on average 1.5296610169491525) internal successors, (722), 487 states have internal predecessors, (722), 261 states have call successors, (261), 36 states have call predecessors, (261), 43 states have return successors, (301), 261 states have call predecessors, (301), 261 states have call successors, (301) [2024-10-14 04:07:43,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 777 states to 777 states and 1284 transitions. [2024-10-14 04:07:43,573 INFO L78 Accepts]: Start accepts. Automaton has 777 states and 1284 transitions. Word has length 194 [2024-10-14 04:07:43,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:07:43,574 INFO L471 AbstractCegarLoop]: Abstraction has 777 states and 1284 transitions. [2024-10-14 04:07:43,574 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 4 states have internal predecessors, (59), 4 states have call successors, (23), 5 states have call predecessors, (23), 2 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2024-10-14 04:07:43,574 INFO L276 IsEmpty]: Start isEmpty. Operand 777 states and 1284 transitions. [2024-10-14 04:07:43,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2024-10-14 04:07:43,581 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:07:43,582 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 10, 6, 5, 5, 5, 5, 2, 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] [2024-10-14 04:07:43,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 04:07:43,582 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:07:43,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:07:43,583 INFO L85 PathProgramCache]: Analyzing trace with hash 35447701, now seen corresponding path program 1 times [2024-10-14 04:07:43,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:07:43,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052819645] [2024-10-14 04:07:43,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:07:43,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:07:43,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:44,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 04:07:44,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:44,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-14 04:07:44,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:44,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 04:07:44,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:44,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 04:07:44,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:44,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 04:07:44,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:44,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 04:07:44,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:44,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-14 04:07:44,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:44,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 04:07:44,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:44,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-14 04:07:44,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:44,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 04:07:44,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:44,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 04:07:44,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:44,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 04:07:44,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:44,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 04:07:44,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:44,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 04:07:44,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:44,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-14 04:07:44,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:44,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-14 04:07:44,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:44,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-10-14 04:07:44,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:44,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-10-14 04:07:44,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:44,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-14 04:07:44,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:44,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-14 04:07:44,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:44,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-10-14 04:07:44,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:44,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-10-14 04:07:44,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:44,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-10-14 04:07:44,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:44,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-14 04:07:44,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:44,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-10-14 04:07:44,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:44,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-14 04:07:44,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:44,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-10-14 04:07:44,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:44,581 INFO L134 CoverageAnalysis]: Checked inductivity of 823 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 823 trivial. 0 not checked. [2024-10-14 04:07:44,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:07:44,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052819645] [2024-10-14 04:07:44,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052819645] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:07:44,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:07:44,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 04:07:44,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326399596] [2024-10-14 04:07:44,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:07:44,583 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 04:07:44,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:07:44,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 04:07:44,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-14 04:07:44,584 INFO L87 Difference]: Start difference. First operand 777 states and 1284 transitions. Second operand has 8 states, 8 states have (on average 7.375) internal successors, (59), 4 states have internal predecessors, (59), 4 states have call successors, (23), 5 states have call predecessors, (23), 2 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2024-10-14 04:07:48,780 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 [] [2024-10-14 04:07:52,789 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 [] [2024-10-14 04:07:55,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:07:55,450 INFO L93 Difference]: Finished difference Result 1521 states and 2508 transitions. [2024-10-14 04:07:55,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 04:07:55,450 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 4 states have internal predecessors, (59), 4 states have call successors, (23), 5 states have call predecessors, (23), 2 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) Word has length 194 [2024-10-14 04:07:55,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:07:55,458 INFO L225 Difference]: With dead ends: 1521 [2024-10-14 04:07:55,458 INFO L226 Difference]: Without dead ends: 776 [2024-10-14 04:07:55,464 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=93, Invalid=179, Unknown=0, NotChecked=0, Total=272 [2024-10-14 04:07:55,465 INFO L432 NwaCegarLoop]: 326 mSDtfsCounter, 421 mSDsluCounter, 883 mSDsCounter, 0 mSdLazyCounter, 1136 mSolverCounterSat, 184 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 460 SdHoareTripleChecker+Valid, 1209 SdHoareTripleChecker+Invalid, 1322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 184 IncrementalHoareTripleChecker+Valid, 1136 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2024-10-14 04:07:55,465 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [460 Valid, 1209 Invalid, 1322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [184 Valid, 1136 Invalid, 2 Unknown, 0 Unchecked, 10.3s Time] [2024-10-14 04:07:55,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 776 states. [2024-10-14 04:07:55,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 776 to 760. [2024-10-14 04:07:55,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 760 states, 463 states have (on average 1.5226781857451404) internal successors, (705), 478 states have internal predecessors, (705), 253 states have call successors, (253), 35 states have call predecessors, (253), 43 states have return successors, (286), 254 states have call predecessors, (286), 253 states have call successors, (286) [2024-10-14 04:07:55,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 760 states to 760 states and 1244 transitions. [2024-10-14 04:07:55,561 INFO L78 Accepts]: Start accepts. Automaton has 760 states and 1244 transitions. Word has length 194 [2024-10-14 04:07:55,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:07:55,562 INFO L471 AbstractCegarLoop]: Abstraction has 760 states and 1244 transitions. [2024-10-14 04:07:55,563 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 4 states have internal predecessors, (59), 4 states have call successors, (23), 5 states have call predecessors, (23), 2 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2024-10-14 04:07:55,563 INFO L276 IsEmpty]: Start isEmpty. Operand 760 states and 1244 transitions. [2024-10-14 04:07:55,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2024-10-14 04:07:55,570 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:07:55,570 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 10, 6, 5, 5, 5, 5, 2, 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] [2024-10-14 04:07:55,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 04:07:55,570 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:07:55,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:07:55,571 INFO L85 PathProgramCache]: Analyzing trace with hash -188967617, now seen corresponding path program 1 times [2024-10-14 04:07:55,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:07:55,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932316306] [2024-10-14 04:07:55,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:07:55,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:07:55,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:56,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-14 04:07:56,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:56,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-14 04:07:56,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:56,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 04:07:56,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:56,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 04:07:56,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:56,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 04:07:56,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:56,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 04:07:56,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:56,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-14 04:07:56,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:56,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 04:07:56,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:56,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-14 04:07:56,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:56,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 04:07:56,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:56,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 04:07:56,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:56,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 04:07:56,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:56,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 04:07:56,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:56,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 04:07:56,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:56,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-14 04:07:56,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:56,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-14 04:07:56,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:56,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-10-14 04:07:56,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:56,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-10-14 04:07:56,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:56,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-14 04:07:56,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:56,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-14 04:07:56,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:56,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-10-14 04:07:56,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:56,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-10-14 04:07:56,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:56,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-10-14 04:07:56,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:56,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-14 04:07:56,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:56,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-10-14 04:07:56,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:56,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-14 04:07:56,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:56,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-10-14 04:07:56,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:07:56,385 INFO L134 CoverageAnalysis]: Checked inductivity of 823 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 823 trivial. 0 not checked. [2024-10-14 04:07:56,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:07:56,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932316306] [2024-10-14 04:07:56,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932316306] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:07:56,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:07:56,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 04:07:56,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492152988] [2024-10-14 04:07:56,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:07:56,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 04:07:56,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:07:56,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 04:07:56,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-14 04:07:56,388 INFO L87 Difference]: Start difference. First operand 760 states and 1244 transitions. Second operand has 8 states, 8 states have (on average 7.375) internal successors, (59), 4 states have internal predecessors, (59), 4 states have call successors, (23), 5 states have call predecessors, (23), 2 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2024-10-14 04:08:00,815 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 [] [2024-10-14 04:08:02,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:08:02,808 INFO L93 Difference]: Finished difference Result 1209 states and 1949 transitions. [2024-10-14 04:08:02,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-14 04:08:02,809 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 4 states have internal predecessors, (59), 4 states have call successors, (23), 5 states have call predecessors, (23), 2 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) Word has length 194 [2024-10-14 04:08:02,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:08:02,815 INFO L225 Difference]: With dead ends: 1209 [2024-10-14 04:08:02,815 INFO L226 Difference]: Without dead ends: 690 [2024-10-14 04:08:02,819 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2024-10-14 04:08:02,820 INFO L432 NwaCegarLoop]: 332 mSDtfsCounter, 416 mSDsluCounter, 831 mSDsCounter, 0 mSdLazyCounter, 929 mSolverCounterSat, 167 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 446 SdHoareTripleChecker+Valid, 1163 SdHoareTripleChecker+Invalid, 1097 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 167 IncrementalHoareTripleChecker+Valid, 929 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2024-10-14 04:08:02,820 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [446 Valid, 1163 Invalid, 1097 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [167 Valid, 929 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2024-10-14 04:08:02,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2024-10-14 04:08:02,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 670. [2024-10-14 04:08:02,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 670 states, 412 states have (on average 1.4902912621359223) internal successors, (614), 425 states have internal predecessors, (614), 214 states have call successors, (214), 35 states have call predecessors, (214), 43 states have return successors, (244), 215 states have call predecessors, (244), 214 states have call successors, (244) [2024-10-14 04:08:02,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 1072 transitions. [2024-10-14 04:08:02,920 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 1072 transitions. Word has length 194 [2024-10-14 04:08:02,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:08:02,921 INFO L471 AbstractCegarLoop]: Abstraction has 670 states and 1072 transitions. [2024-10-14 04:08:02,921 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 4 states have internal predecessors, (59), 4 states have call successors, (23), 5 states have call predecessors, (23), 2 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2024-10-14 04:08:02,921 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 1072 transitions. [2024-10-14 04:08:02,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2024-10-14 04:08:02,929 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:08:02,929 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 10, 6, 5, 5, 5, 5, 2, 2, 2, 2, 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] [2024-10-14 04:08:02,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 04:08:02,930 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:08:02,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:08:02,930 INFO L85 PathProgramCache]: Analyzing trace with hash 1909593472, now seen corresponding path program 1 times [2024-10-14 04:08:02,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:08:02,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244665595] [2024-10-14 04:08:02,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:08:02,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:08:03,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:03,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-14 04:08:03,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:03,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:08:03,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:03,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 04:08:03,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:03,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-14 04:08:03,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:03,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 04:08:03,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:03,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-14 04:08:03,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:03,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 04:08:03,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:03,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 04:08:03,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:03,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 04:08:03,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:03,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 04:08:03,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:03,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 04:08:03,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:03,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-14 04:08:03,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:03,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-14 04:08:03,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:04,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 04:08:04,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:04,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-14 04:08:04,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:04,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 04:08:04,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:04,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-14 04:08:04,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:04,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-14 04:08:04,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:04,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-14 04:08:04,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:04,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-14 04:08:04,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:04,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-14 04:08:04,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:04,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-10-14 04:08:04,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:04,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-10-14 04:08:04,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:04,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-10-14 04:08:04,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:04,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-10-14 04:08:04,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:04,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2024-10-14 04:08:04,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:04,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-10-14 04:08:04,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:04,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2024-10-14 04:08:04,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:04,054 INFO L134 CoverageAnalysis]: Checked inductivity of 827 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 824 trivial. 0 not checked. [2024-10-14 04:08:04,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:08:04,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244665595] [2024-10-14 04:08:04,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244665595] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 04:08:04,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1922232198] [2024-10-14 04:08:04,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:08:04,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 04:08:04,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 04:08:04,057 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) [2024-10-14 04:08:04,058 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-14 04:08:04,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:04,709 INFO L255 TraceCheckSpWp]: Trace formula consists of 1567 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-14 04:08:04,716 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 04:08:04,831 INFO L134 CoverageAnalysis]: Checked inductivity of 827 backedges. 280 proven. 4 refuted. 0 times theorem prover too weak. 543 trivial. 0 not checked. [2024-10-14 04:08:04,832 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 04:08:05,167 INFO L134 CoverageAnalysis]: Checked inductivity of 827 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 823 trivial. 0 not checked. [2024-10-14 04:08:05,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1922232198] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 04:08:05,168 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 04:08:05,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 6, 5] total 16 [2024-10-14 04:08:05,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338507503] [2024-10-14 04:08:05,168 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 04:08:05,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-14 04:08:05,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:08:05,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-14 04:08:05,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2024-10-14 04:08:05,170 INFO L87 Difference]: Start difference. First operand 670 states and 1072 transitions. Second operand has 16 states, 16 states have (on average 5.5625) internal successors, (89), 12 states have internal predecessors, (89), 9 states have call successors, (51), 8 states have call predecessors, (51), 7 states have return successors, (49), 7 states have call predecessors, (49), 9 states have call successors, (49) [2024-10-14 04:08:09,226 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-14 04:08:13,333 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-14 04:08:14,371 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-14 04:08:18,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:08:18,099 INFO L93 Difference]: Finished difference Result 1694 states and 2736 transitions. [2024-10-14 04:08:18,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-14 04:08:18,100 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 5.5625) internal successors, (89), 12 states have internal predecessors, (89), 9 states have call successors, (51), 8 states have call predecessors, (51), 7 states have return successors, (49), 7 states have call predecessors, (49), 9 states have call successors, (49) Word has length 197 [2024-10-14 04:08:18,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:08:18,107 INFO L225 Difference]: With dead ends: 1694 [2024-10-14 04:08:18,108 INFO L226 Difference]: Without dead ends: 1055 [2024-10-14 04:08:18,111 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 475 GetRequests, 449 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=203, Invalid=553, Unknown=0, NotChecked=0, Total=756 [2024-10-14 04:08:18,114 INFO L432 NwaCegarLoop]: 335 mSDtfsCounter, 1141 mSDsluCounter, 1121 mSDsCounter, 0 mSdLazyCounter, 1775 mSolverCounterSat, 1128 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1219 SdHoareTripleChecker+Valid, 1456 SdHoareTripleChecker+Invalid, 2905 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1128 IncrementalHoareTripleChecker+Valid, 1775 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.0s IncrementalHoareTripleChecker+Time [2024-10-14 04:08:18,114 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1219 Valid, 1456 Invalid, 2905 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1128 Valid, 1775 Invalid, 2 Unknown, 0 Unchecked, 12.0s Time] [2024-10-14 04:08:18,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1055 states. [2024-10-14 04:08:18,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1055 to 1022. [2024-10-14 04:08:18,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1022 states, 620 states have (on average 1.4935483870967743) internal successors, (926), 640 states have internal predecessors, (926), 335 states have call successors, (335), 57 states have call predecessors, (335), 66 states have return successors, (382), 334 states have call predecessors, (382), 335 states have call successors, (382) [2024-10-14 04:08:18,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1022 states to 1022 states and 1643 transitions. [2024-10-14 04:08:18,216 INFO L78 Accepts]: Start accepts. Automaton has 1022 states and 1643 transitions. Word has length 197 [2024-10-14 04:08:18,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:08:18,217 INFO L471 AbstractCegarLoop]: Abstraction has 1022 states and 1643 transitions. [2024-10-14 04:08:18,218 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 5.5625) internal successors, (89), 12 states have internal predecessors, (89), 9 states have call successors, (51), 8 states have call predecessors, (51), 7 states have return successors, (49), 7 states have call predecessors, (49), 9 states have call successors, (49) [2024-10-14 04:08:18,218 INFO L276 IsEmpty]: Start isEmpty. Operand 1022 states and 1643 transitions. [2024-10-14 04:08:18,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2024-10-14 04:08:18,226 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:08:18,226 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 10, 6, 5, 5, 5, 5, 2, 2, 2, 2, 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] [2024-10-14 04:08:18,249 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-14 04:08:18,427 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 [2024-10-14 04:08:18,427 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:08:18,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:08:18,428 INFO L85 PathProgramCache]: Analyzing trace with hash -722934082, now seen corresponding path program 1 times [2024-10-14 04:08:18,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:08:18,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945129373] [2024-10-14 04:08:18,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:08:18,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:08:18,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:20,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-14 04:08:20,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:20,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:08:20,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:20,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 04:08:20,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:20,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-14 04:08:20,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:20,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 04:08:20,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:20,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-14 04:08:20,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:21,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 04:08:21,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:21,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 04:08:21,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:21,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 04:08:21,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:21,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 04:08:21,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:21,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 04:08:21,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:21,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-14 04:08:21,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:21,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-14 04:08:21,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:21,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 04:08:21,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:21,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-14 04:08:21,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:21,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 04:08:21,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:21,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-14 04:08:21,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:21,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-14 04:08:21,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:21,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-14 04:08:21,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:21,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-14 04:08:21,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:21,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-14 04:08:21,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:21,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-10-14 04:08:21,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:21,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-10-14 04:08:21,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:21,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-10-14 04:08:21,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:21,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-10-14 04:08:21,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:21,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2024-10-14 04:08:21,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:21,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-10-14 04:08:21,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:21,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2024-10-14 04:08:21,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:21,414 INFO L134 CoverageAnalysis]: Checked inductivity of 827 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 824 trivial. 0 not checked. [2024-10-14 04:08:21,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:08:21,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945129373] [2024-10-14 04:08:21,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945129373] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 04:08:21,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [493688560] [2024-10-14 04:08:21,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:08:21,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 04:08:21,415 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 04:08:21,417 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) [2024-10-14 04:08:21,418 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-14 04:08:22,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:08:22,092 INFO L255 TraceCheckSpWp]: Trace formula consists of 1653 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-10-14 04:08:22,125 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 04:08:22,351 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 [2024-10-14 04:08:27,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-14 04:08:27,930 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-14 04:08:27,930 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 48 [2024-10-14 04:08:28,962 INFO L349 Elim1Store]: treesize reduction 64, result has 54.9 percent of original size [2024-10-14 04:08:28,963 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 104