./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test9-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a046e57d 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/uthash-2.0.2/uthash_FNV_test9-1.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 4f54335276b565c52e40eef6a3f78ed9d794347e65877e7f862e4de86bcdea73 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 09:11:26,130 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 09:11:26,208 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-13 09:11:26,214 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 09:11:26,215 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 09:11:26,244 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 09:11:26,245 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 09:11:26,245 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 09:11:26,246 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 09:11:26,261 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 09:11:26,261 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 09:11:26,261 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 09:11:26,263 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 09:11:26,265 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 09:11:26,265 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 09:11:26,266 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 09:11:26,266 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 09:11:26,266 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 09:11:26,267 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 09:11:26,267 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 09:11:26,267 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 09:11:26,268 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 09:11:26,272 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 09:11:26,272 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 09:11:26,273 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 09:11:26,273 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 09:11:26,273 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 09:11:26,273 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 09:11:26,273 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 09:11:26,274 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 09:11:26,274 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 09:11:26,274 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 09:11:26,274 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 09:11:26,274 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 09:11:26,275 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 09:11:26,275 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 09:11:26,275 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 09:11:26,276 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 09:11:26,276 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 09:11:26,276 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 09:11:26,277 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 09:11:26,278 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 09:11:26,278 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f54335276b565c52e40eef6a3f78ed9d794347e65877e7f862e4de86bcdea73 [2024-10-13 09:11:26,535 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 09:11:26,563 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 09:11:26,566 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 09:11:26,567 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 09:11:26,567 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 09:11:26,568 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test9-1.i [2024-10-13 09:11:27,984 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 09:11:28,353 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 09:11:28,353 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test9-1.i [2024-10-13 09:11:28,381 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59ee0bdf4/784520f6cb7d49bbbcb78bdda06b14fc/FLAG91a312af5 [2024-10-13 09:11:28,397 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59ee0bdf4/784520f6cb7d49bbbcb78bdda06b14fc [2024-10-13 09:11:28,401 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 09:11:28,405 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 09:11:28,407 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 09:11:28,408 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 09:11:28,414 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 09:11:28,415 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:11:28" (1/1) ... [2024-10-13 09:11:28,416 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@147a2fb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:11:28, skipping insertion in model container [2024-10-13 09:11:28,416 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:11:28" (1/1) ... [2024-10-13 09:11:28,484 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 09:11:28,925 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/uthash-2.0.2/uthash_FNV_test9-1.i[33021,33034] [2024-10-13 09:11:29,163 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/uthash-2.0.2/uthash_FNV_test9-1.i[84583,84596] [2024-10-13 09:11:29,171 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 09:11:29,181 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 09:11:29,224 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/uthash-2.0.2/uthash_FNV_test9-1.i[33021,33034] [2024-10-13 09:11:29,339 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/uthash-2.0.2/uthash_FNV_test9-1.i[84583,84596] [2024-10-13 09:11:29,342 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 09:11:29,378 INFO L204 MainTranslator]: Completed translation [2024-10-13 09:11:29,379 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:11:29 WrapperNode [2024-10-13 09:11:29,379 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 09:11:29,380 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 09:11:29,380 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 09:11:29,381 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 09:11:29,387 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:11:29" (1/1) ... [2024-10-13 09:11:29,436 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:11:29" (1/1) ... [2024-10-13 09:11:29,542 INFO L138 Inliner]: procedures = 177, calls = 722, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3282 [2024-10-13 09:11:29,542 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 09:11:29,543 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 09:11:29,544 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 09:11:29,544 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 09:11:29,554 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:11:29" (1/1) ... [2024-10-13 09:11:29,555 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:11:29" (1/1) ... [2024-10-13 09:11:29,572 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:11:29" (1/1) ... [2024-10-13 09:11:29,656 INFO L175 MemorySlicer]: Split 208 memory accesses to 3 slices as follows [2, 34, 172]. 83 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 46 writes are split as follows [0, 4, 42]. [2024-10-13 09:11:29,661 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:11:29" (1/1) ... [2024-10-13 09:11:29,661 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:11:29" (1/1) ... [2024-10-13 09:11:29,773 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:11:29" (1/1) ... [2024-10-13 09:11:29,811 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:11:29" (1/1) ... [2024-10-13 09:11:29,821 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:11:29" (1/1) ... [2024-10-13 09:11:29,835 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:11:29" (1/1) ... [2024-10-13 09:11:29,857 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 09:11:29,860 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 09:11:29,862 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 09:11:29,862 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 09:11:29,863 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:11:29" (1/1) ... [2024-10-13 09:11:29,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 09:11:29,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:11:29,942 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) [2024-10-13 09:11:29,945 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 [2024-10-13 09:11:29,990 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-13 09:11:29,991 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-13 09:11:29,991 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-13 09:11:29,991 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-13 09:11:29,992 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-13 09:11:29,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-13 09:11:29,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-13 09:11:29,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-13 09:11:29,993 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-10-13 09:11:29,993 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-10-13 09:11:29,993 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-10-13 09:11:29,993 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-10-13 09:11:29,994 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-10-13 09:11:29,994 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-10-13 09:11:29,994 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-13 09:11:29,994 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 09:11:29,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-13 09:11:29,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-13 09:11:29,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-13 09:11:29,995 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-13 09:11:29,995 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-13 09:11:29,995 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-13 09:11:29,995 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-13 09:11:29,995 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-13 09:11:29,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-13 09:11:29,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-13 09:11:29,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-13 09:11:29,995 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 09:11:29,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 09:11:30,234 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 09:11:30,238 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 09:11:32,704 INFO L? ?]: Removed 797 outVars from TransFormulas that were not future-live. [2024-10-13 09:11:32,704 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 09:11:32,766 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 09:11:32,767 INFO L314 CfgBuilder]: Removed 54 assume(true) statements. [2024-10-13 09:11:32,767 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:11:32 BoogieIcfgContainer [2024-10-13 09:11:32,767 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 09:11:32,770 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 09:11:32,770 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 09:11:32,773 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 09:11:32,774 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:11:28" (1/3) ... [2024-10-13 09:11:32,774 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@351b1fab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:11:32, skipping insertion in model container [2024-10-13 09:11:32,774 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:11:29" (2/3) ... [2024-10-13 09:11:32,775 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@351b1fab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:11:32, skipping insertion in model container [2024-10-13 09:11:32,775 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:11:32" (3/3) ... [2024-10-13 09:11:32,776 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test9-1.i [2024-10-13 09:11:32,792 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 09:11:32,792 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-13 09:11:32,899 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 09:11:32,905 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;@5d2ac4fa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 09:11:32,905 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-13 09:11:32,914 INFO L276 IsEmpty]: Start isEmpty. Operand has 1366 states, 858 states have (on average 1.843822843822844) internal successors, (1582), 1360 states have internal predecessors, (1582), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2024-10-13 09:11:32,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-10-13 09:11:32,921 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 09:11:32,921 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:11:32,922 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 09:11:32,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:11:32,928 INFO L85 PathProgramCache]: Analyzing trace with hash 412935825, now seen corresponding path program 1 times [2024-10-13 09:11:32,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:11:32,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851624855] [2024-10-13 09:11:32,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:11:32,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:11:33,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:11:33,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:11:33,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:11:33,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851624855] [2024-10-13 09:11:33,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851624855] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:11:33,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:11:33,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 09:11:33,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727888492] [2024-10-13 09:11:33,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:11:33,119 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-13 09:11:33,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:11:33,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-13 09:11:33,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-13 09:11:33,169 INFO L87 Difference]: Start difference. First operand has 1366 states, 858 states have (on average 1.843822843822844) internal successors, (1582), 1360 states have internal predecessors, (1582), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:11:33,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 09:11:33,378 INFO L93 Difference]: Finished difference Result 2731 states and 5675 transitions. [2024-10-13 09:11:33,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-13 09:11:33,381 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-10-13 09:11:33,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 09:11:33,425 INFO L225 Difference]: With dead ends: 2731 [2024-10-13 09:11:33,426 INFO L226 Difference]: Without dead ends: 1364 [2024-10-13 09:11:33,443 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-13 09:11:33,446 INFO L432 NwaCegarLoop]: 2524 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2524 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 09:11:33,447 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2524 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 09:11:33,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1364 states. [2024-10-13 09:11:33,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1364 to 1364. [2024-10-13 09:11:33,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1364 states, 857 states have (on average 1.7736289381563595) internal successors, (1520), 1358 states have internal predecessors, (1520), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2024-10-13 09:11:33,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1364 states to 1364 states and 2526 transitions. [2024-10-13 09:11:33,827 INFO L78 Accepts]: Start accepts. Automaton has 1364 states and 2526 transitions. Word has length 8 [2024-10-13 09:11:33,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 09:11:33,827 INFO L471 AbstractCegarLoop]: Abstraction has 1364 states and 2526 transitions. [2024-10-13 09:11:33,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:11:33,828 INFO L276 IsEmpty]: Start isEmpty. Operand 1364 states and 2526 transitions. [2024-10-13 09:11:33,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-10-13 09:11:33,834 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 09:11:33,835 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:11:33,835 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 09:11:33,835 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 09:11:33,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:11:33,836 INFO L85 PathProgramCache]: Analyzing trace with hash -701353719, now seen corresponding path program 1 times [2024-10-13 09:11:33,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:11:33,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410020685] [2024-10-13 09:11:33,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:11:33,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:11:33,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:11:34,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:11:34,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:11:34,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410020685] [2024-10-13 09:11:34,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410020685] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:11:34,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:11:34,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 09:11:34,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413943436] [2024-10-13 09:11:34,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:11:34,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 09:11:34,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:11:34,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 09:11:34,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 09:11:34,310 INFO L87 Difference]: Start difference. First operand 1364 states and 2526 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:11:35,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 09:11:35,252 INFO L93 Difference]: Finished difference Result 3882 states and 7281 transitions. [2024-10-13 09:11:35,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 09:11:35,253 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2024-10-13 09:11:35,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 09:11:35,275 INFO L225 Difference]: With dead ends: 3882 [2024-10-13 09:11:35,276 INFO L226 Difference]: Without dead ends: 2717 [2024-10-13 09:11:35,282 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-13 09:11:35,283 INFO L432 NwaCegarLoop]: 2754 mSDtfsCounter, 1507 mSDsluCounter, 4754 mSDsCounter, 0 mSdLazyCounter, 568 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2010 SdHoareTripleChecker+Valid, 7508 SdHoareTripleChecker+Invalid, 569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-13 09:11:35,284 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2010 Valid, 7508 Invalid, 569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 568 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-13 09:11:35,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2717 states. [2024-10-13 09:11:35,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2717 to 1366. [2024-10-13 09:11:35,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1366 states, 859 states have (on average 1.7718277066356227) internal successors, (1522), 1360 states have internal predecessors, (1522), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2024-10-13 09:11:35,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1366 states to 1366 states and 2528 transitions. [2024-10-13 09:11:35,546 INFO L78 Accepts]: Start accepts. Automaton has 1366 states and 2528 transitions. Word has length 63 [2024-10-13 09:11:35,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 09:11:35,547 INFO L471 AbstractCegarLoop]: Abstraction has 1366 states and 2528 transitions. [2024-10-13 09:11:35,547 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:11:35,547 INFO L276 IsEmpty]: Start isEmpty. Operand 1366 states and 2528 transitions. [2024-10-13 09:11:35,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-10-13 09:11:35,553 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 09:11:35,553 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:11:35,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-13 09:11:35,553 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 09:11:35,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:11:35,554 INFO L85 PathProgramCache]: Analyzing trace with hash 1454497386, now seen corresponding path program 1 times [2024-10-13 09:11:35,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:11:35,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143581816] [2024-10-13 09:11:35,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:11:35,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:11:35,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:11:35,901 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:11:35,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:11:35,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143581816] [2024-10-13 09:11:35,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143581816] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:11:35,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:11:35,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 09:11:35,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610735522] [2024-10-13 09:11:35,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:11:35,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 09:11:35,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:11:35,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 09:11:35,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 09:11:35,907 INFO L87 Difference]: Start difference. First operand 1366 states and 2528 transitions. Second operand has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:11:36,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 09:11:36,038 INFO L93 Difference]: Finished difference Result 2732 states and 5056 transitions. [2024-10-13 09:11:36,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 09:11:36,038 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 139 [2024-10-13 09:11:36,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 09:11:36,051 INFO L225 Difference]: With dead ends: 2732 [2024-10-13 09:11:36,052 INFO L226 Difference]: Without dead ends: 1369 [2024-10-13 09:11:36,057 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-13 09:11:36,058 INFO L432 NwaCegarLoop]: 2495 mSDtfsCounter, 105 mSDsluCounter, 4899 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 7394 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 09:11:36,059 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 7394 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 09:11:36,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1369 states. [2024-10-13 09:11:36,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1369 to 1366. [2024-10-13 09:11:36,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1366 states, 859 states have (on average 1.7636786961583237) internal successors, (1515), 1360 states have internal predecessors, (1515), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2024-10-13 09:11:36,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1366 states to 1366 states and 2521 transitions. [2024-10-13 09:11:36,199 INFO L78 Accepts]: Start accepts. Automaton has 1366 states and 2521 transitions. Word has length 139 [2024-10-13 09:11:36,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 09:11:36,199 INFO L471 AbstractCegarLoop]: Abstraction has 1366 states and 2521 transitions. [2024-10-13 09:11:36,200 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:11:36,200 INFO L276 IsEmpty]: Start isEmpty. Operand 1366 states and 2521 transitions. [2024-10-13 09:11:36,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-10-13 09:11:36,203 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 09:11:36,203 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:11:36,204 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-13 09:11:36,204 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 09:11:36,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:11:36,204 INFO L85 PathProgramCache]: Analyzing trace with hash -566948362, now seen corresponding path program 1 times [2024-10-13 09:11:36,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:11:36,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085953684] [2024-10-13 09:11:36,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:11:36,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:11:36,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:11:36,401 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:11:36,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:11:36,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085953684] [2024-10-13 09:11:36,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085953684] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:11:36,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:11:36,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 09:11:36,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22911863] [2024-10-13 09:11:36,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:11:36,404 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 09:11:36,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:11:36,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 09:11:36,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 09:11:36,405 INFO L87 Difference]: Start difference. First operand 1366 states and 2521 transitions. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 2 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:11:36,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 09:11:36,576 INFO L93 Difference]: Finished difference Result 3995 states and 7432 transitions. [2024-10-13 09:11:36,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 09:11:36,576 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 2 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 139 [2024-10-13 09:11:36,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 09:11:36,598 INFO L225 Difference]: With dead ends: 3995 [2024-10-13 09:11:36,598 INFO L226 Difference]: Without dead ends: 2632 [2024-10-13 09:11:36,606 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 09:11:36,607 INFO L432 NwaCegarLoop]: 2948 mSDtfsCounter, 1336 mSDsluCounter, 2503 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1836 SdHoareTripleChecker+Valid, 5451 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 09:11:36,608 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1836 Valid, 5451 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 09:11:36,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2632 states. [2024-10-13 09:11:36,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2632 to 2630. [2024-10-13 09:11:36,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2630 states, 1623 states have (on average 1.7898952556993222) internal successors, (2905), 2624 states have internal predecessors, (2905), 1003 states have call successors, (1003), 2 states have call predecessors, (1003), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2024-10-13 09:11:36,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2630 states to 2630 states and 4911 transitions. [2024-10-13 09:11:36,967 INFO L78 Accepts]: Start accepts. Automaton has 2630 states and 4911 transitions. Word has length 139 [2024-10-13 09:11:36,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 09:11:36,968 INFO L471 AbstractCegarLoop]: Abstraction has 2630 states and 4911 transitions. [2024-10-13 09:11:36,968 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 2 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:11:36,968 INFO L276 IsEmpty]: Start isEmpty. Operand 2630 states and 4911 transitions. [2024-10-13 09:11:36,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-10-13 09:11:36,971 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 09:11:36,971 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:11:36,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-13 09:11:36,971 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 09:11:36,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:11:36,972 INFO L85 PathProgramCache]: Analyzing trace with hash 2095813002, now seen corresponding path program 1 times [2024-10-13 09:11:36,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:11:36,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751964009] [2024-10-13 09:11:36,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:11:36,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:11:37,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:11:37,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-13 09:11:37,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:11:37,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-13 09:11:37,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:11:37,326 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-13 09:11:37,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:11:37,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751964009] [2024-10-13 09:11:37,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751964009] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:11:37,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:11:37,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 09:11:37,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618800062] [2024-10-13 09:11:37,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:11:37,328 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 09:11:37,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:11:37,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 09:11:37,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-13 09:11:37,330 INFO L87 Difference]: Start difference. First operand 2630 states and 4911 transitions. Second operand has 5 states, 5 states have (on average 29.0) internal successors, (145), 4 states have internal predecessors, (145), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-13 09:11:40,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 09:11:40,083 INFO L93 Difference]: Finished difference Result 4847 states and 9224 transitions. [2024-10-13 09:11:40,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 09:11:40,083 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 4 states have internal predecessors, (145), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 152 [2024-10-13 09:11:40,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 09:11:40,104 INFO L225 Difference]: With dead ends: 4847 [2024-10-13 09:11:40,104 INFO L226 Difference]: Without dead ends: 2548 [2024-10-13 09:11:40,113 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-13 09:11:40,115 INFO L432 NwaCegarLoop]: 2408 mSDtfsCounter, 37 mSDsluCounter, 5152 mSDsCounter, 0 mSdLazyCounter, 1648 mSolverCounterSat, 523 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 7560 SdHoareTripleChecker+Invalid, 2171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 523 IncrementalHoareTripleChecker+Valid, 1648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-10-13 09:11:40,115 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 7560 Invalid, 2171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [523 Valid, 1648 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-10-13 09:11:40,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2548 states. [2024-10-13 09:11:40,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2548 to 2546. [2024-10-13 09:11:40,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2546 states, 1539 states have (on average 1.7875243664717348) internal successors, (2751), 2540 states have internal predecessors, (2751), 1003 states have call successors, (1003), 2 states have call predecessors, (1003), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2024-10-13 09:11:40,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2546 states to 2546 states and 4757 transitions. [2024-10-13 09:11:40,375 INFO L78 Accepts]: Start accepts. Automaton has 2546 states and 4757 transitions. Word has length 152 [2024-10-13 09:11:40,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 09:11:40,376 INFO L471 AbstractCegarLoop]: Abstraction has 2546 states and 4757 transitions. [2024-10-13 09:11:40,376 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 4 states have internal predecessors, (145), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-13 09:11:40,377 INFO L276 IsEmpty]: Start isEmpty. Operand 2546 states and 4757 transitions. [2024-10-13 09:11:40,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-10-13 09:11:40,378 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 09:11:40,379 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:11:40,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-13 09:11:40,379 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 09:11:40,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:11:40,380 INFO L85 PathProgramCache]: Analyzing trace with hash 924298878, now seen corresponding path program 1 times [2024-10-13 09:11:40,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:11:40,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665108310] [2024-10-13 09:11:40,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:11:40,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:11:40,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:11:40,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-13 09:11:40,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:11:40,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-13 09:11:40,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:11:40,710 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-13 09:11:40,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:11:40,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665108310] [2024-10-13 09:11:40,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665108310] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:11:40,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:11:40,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-13 09:11:40,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281470101] [2024-10-13 09:11:40,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:11:40,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:11:40,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:11:40,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:11:40,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-13 09:11:40,712 INFO L87 Difference]: Start difference. First operand 2546 states and 4757 transitions. Second operand has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 5 states have internal predecessors, (146), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-13 09:11:45,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 09:11:45,683 INFO L93 Difference]: Finished difference Result 5041 states and 9435 transitions. [2024-10-13 09:11:45,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 09:11:45,684 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 5 states have internal predecessors, (146), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 152 [2024-10-13 09:11:45,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 09:11:45,708 INFO L225 Difference]: With dead ends: 5041 [2024-10-13 09:11:45,708 INFO L226 Difference]: Without dead ends: 2627 [2024-10-13 09:11:45,718 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-10-13 09:11:45,719 INFO L432 NwaCegarLoop]: 2841 mSDtfsCounter, 6202 mSDsluCounter, 4149 mSDsCounter, 0 mSdLazyCounter, 1443 mSolverCounterSat, 2535 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6704 SdHoareTripleChecker+Valid, 6990 SdHoareTripleChecker+Invalid, 3978 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2535 IncrementalHoareTripleChecker+Valid, 1443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-10-13 09:11:45,719 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6704 Valid, 6990 Invalid, 3978 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2535 Valid, 1443 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2024-10-13 09:11:45,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2627 states. [2024-10-13 09:11:46,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2627 to 1453. [2024-10-13 09:11:46,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1453 states, 946 states have (on average 1.7167019027484143) internal successors, (1624), 1447 states have internal predecessors, (1624), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2024-10-13 09:11:46,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1453 states to 1453 states and 2630 transitions. [2024-10-13 09:11:46,043 INFO L78 Accepts]: Start accepts. Automaton has 1453 states and 2630 transitions. Word has length 152 [2024-10-13 09:11:46,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 09:11:46,044 INFO L471 AbstractCegarLoop]: Abstraction has 1453 states and 2630 transitions. [2024-10-13 09:11:46,045 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 5 states have internal predecessors, (146), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-13 09:11:46,045 INFO L276 IsEmpty]: Start isEmpty. Operand 1453 states and 2630 transitions. [2024-10-13 09:11:46,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-10-13 09:11:46,047 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 09:11:46,047 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:11:46,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-13 09:11:46,047 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 09:11:46,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:11:46,048 INFO L85 PathProgramCache]: Analyzing trace with hash -480729422, now seen corresponding path program 1 times [2024-10-13 09:11:46,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:11:46,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931168833] [2024-10-13 09:11:46,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:11:46,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:11:46,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:11:46,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-13 09:11:46,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:11:46,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-13 09:11:46,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:11:46,901 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-13 09:11:46,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:11:46,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931168833] [2024-10-13 09:11:46,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931168833] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:11:46,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [956867214] [2024-10-13 09:11:46,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:11:46,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:11:46,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:11:46,905 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) [2024-10-13 09:11:46,906 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-13 09:11:47,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:11:47,243 INFO L255 TraceCheckSpWp]: Trace formula consists of 767 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-13 09:11:47,255 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:11:47,288 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 11 treesize of output 7 [2024-10-13 09:11:47,530 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 3 [2024-10-13 09:11:47,536 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-10-13 09:11:47,545 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-13 09:11:47,548 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 09:11:47,750 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-13 09:11:47,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [956867214] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 09:11:47,751 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 09:11:47,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 12 [2024-10-13 09:11:47,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990820901] [2024-10-13 09:11:47,751 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 09:11:47,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-13 09:11:47,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:11:47,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-13 09:11:47,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-10-13 09:11:47,754 INFO L87 Difference]: Start difference. First operand 1453 states and 2630 transitions. Second operand has 12 states, 12 states have (on average 27.0) internal successors, (324), 11 states have internal predecessors, (324), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-10-13 09:11:57,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 09:11:57,948 INFO L93 Difference]: Finished difference Result 5432 states and 9983 transitions. [2024-10-13 09:11:57,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-13 09:11:57,949 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 27.0) internal successors, (324), 11 states have internal predecessors, (324), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 162 [2024-10-13 09:11:57,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 09:11:57,980 INFO L225 Difference]: With dead ends: 5432 [2024-10-13 09:11:57,980 INFO L226 Difference]: Without dead ends: 4309 [2024-10-13 09:11:57,986 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 337 GetRequests, 320 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2024-10-13 09:11:57,986 INFO L432 NwaCegarLoop]: 1955 mSDtfsCounter, 7589 mSDsluCounter, 12600 mSDsCounter, 0 mSdLazyCounter, 7276 mSolverCounterSat, 3521 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8597 SdHoareTripleChecker+Valid, 14555 SdHoareTripleChecker+Invalid, 10797 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3521 IncrementalHoareTripleChecker+Valid, 7276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2024-10-13 09:11:57,987 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8597 Valid, 14555 Invalid, 10797 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3521 Valid, 7276 Invalid, 0 Unknown, 0 Unchecked, 9.6s Time] [2024-10-13 09:11:57,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4309 states. [2024-10-13 09:11:58,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4309 to 1883. [2024-10-13 09:11:58,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1883 states, 1372 states have (on average 1.6180758017492711) internal successors, (2220), 1873 states have internal predecessors, (2220), 506 states have call successors, (506), 3 states have call predecessors, (506), 3 states have return successors, (506), 7 states have call predecessors, (506), 506 states have call successors, (506) [2024-10-13 09:11:58,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1883 states to 1883 states and 3232 transitions. [2024-10-13 09:11:58,417 INFO L78 Accepts]: Start accepts. Automaton has 1883 states and 3232 transitions. Word has length 162 [2024-10-13 09:11:58,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 09:11:58,418 INFO L471 AbstractCegarLoop]: Abstraction has 1883 states and 3232 transitions. [2024-10-13 09:11:58,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 27.0) internal successors, (324), 11 states have internal predecessors, (324), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-10-13 09:11:58,423 INFO L276 IsEmpty]: Start isEmpty. Operand 1883 states and 3232 transitions. [2024-10-13 09:11:58,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2024-10-13 09:11:58,431 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 09:11:58,431 INFO L215 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2024-10-13 09:11:58,452 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-13 09:11:58,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:11:58,636 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 09:11:58,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:11:58,637 INFO L85 PathProgramCache]: Analyzing trace with hash 1289486777, now seen corresponding path program 1 times [2024-10-13 09:11:58,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:11:58,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097289568] [2024-10-13 09:11:58,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:11:58,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:11:58,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:12:02,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-13 09:12:02,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:12:02,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-13 09:12:02,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:12:02,459 INFO L134 CoverageAnalysis]: Checked inductivity of 461 backedges. 0 proven. 458 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-13 09:12:02,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:12:02,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097289568] [2024-10-13 09:12:02,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097289568] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:12:02,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1662818417] [2024-10-13 09:12:02,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:12:02,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:12:02,461 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:12:02,463 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) [2024-10-13 09:12:02,464 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-13 09:12:03,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:12:03,146 INFO L255 TraceCheckSpWp]: Trace formula consists of 1898 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-13 09:12:03,165 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:12:03,180 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 11 treesize of output 7 [2024-10-13 09:12:03,377 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 3 [2024-10-13 09:12:03,491 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-10-13 09:12:03,597 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-10-13 09:12:03,705 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-10-13 09:12:03,712 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-10-13 09:12:03,718 INFO L134 CoverageAnalysis]: Checked inductivity of 461 backedges. 0 proven. 458 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-13 09:12:03,719 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 09:12:04,247 INFO L134 CoverageAnalysis]: Checked inductivity of 461 backedges. 0 proven. 458 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-13 09:12:04,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1662818417] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 09:12:04,248 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 09:12:04,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 8, 8] total 21 [2024-10-13 09:12:04,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119413089] [2024-10-13 09:12:04,248 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 09:12:04,251 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-10-13 09:12:04,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:12:04,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-10-13 09:12:04,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=274, Unknown=0, NotChecked=0, Total=420 [2024-10-13 09:12:04,257 INFO L87 Difference]: Start difference. First operand 1883 states and 3232 transitions. Second operand has 21 states, 21 states have (on average 37.42857142857143) internal successors, (786), 20 states have internal predecessors, (786), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-10-13 09:12:22,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 09:12:22,260 INFO L93 Difference]: Finished difference Result 11012 states and 20190 transitions. [2024-10-13 09:12:22,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-10-13 09:12:22,262 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 37.42857142857143) internal successors, (786), 20 states have internal predecessors, (786), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 390 [2024-10-13 09:12:22,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 09:12:22,315 INFO L225 Difference]: With dead ends: 11012 [2024-10-13 09:12:22,315 INFO L226 Difference]: Without dead ends: 9889 [2024-10-13 09:12:22,322 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 804 GetRequests, 775 SyntacticMatches, 3 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=229, Invalid=527, Unknown=0, NotChecked=0, Total=756 [2024-10-13 09:12:22,323 INFO L432 NwaCegarLoop]: 1955 mSDtfsCounter, 29803 mSDsluCounter, 18440 mSDsCounter, 0 mSdLazyCounter, 9850 mSolverCounterSat, 7802 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32823 SdHoareTripleChecker+Valid, 20395 SdHoareTripleChecker+Invalid, 17652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7802 IncrementalHoareTripleChecker+Valid, 9850 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.7s IncrementalHoareTripleChecker+Time [2024-10-13 09:12:22,323 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32823 Valid, 20395 Invalid, 17652 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7802 Valid, 9850 Invalid, 0 Unknown, 0 Unchecked, 16.7s Time] [2024-10-13 09:12:22,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9889 states. [2024-10-13 09:12:23,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9889 to 2999. [2024-10-13 09:12:23,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2999 states, 2482 states have (on average 1.525382755842063) internal successors, (3786), 2983 states have internal predecessors, (3786), 512 states have call successors, (512), 3 states have call predecessors, (512), 3 states have return successors, (512), 13 states have call predecessors, (512), 512 states have call successors, (512) [2024-10-13 09:12:23,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2999 states to 2999 states and 4810 transitions. [2024-10-13 09:12:23,467 INFO L78 Accepts]: Start accepts. Automaton has 2999 states and 4810 transitions. Word has length 390 [2024-10-13 09:12:23,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 09:12:23,468 INFO L471 AbstractCegarLoop]: Abstraction has 2999 states and 4810 transitions. [2024-10-13 09:12:23,469 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 37.42857142857143) internal successors, (786), 20 states have internal predecessors, (786), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-10-13 09:12:23,469 INFO L276 IsEmpty]: Start isEmpty. Operand 2999 states and 4810 transitions. [2024-10-13 09:12:23,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 847 [2024-10-13 09:12:23,487 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 09:12:23,489 INFO L215 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 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] [2024-10-13 09:12:23,513 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-13 09:12:23,689 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,SelfDestructingSolverStorable7 [2024-10-13 09:12:23,690 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 09:12:23,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:12:23,691 INFO L85 PathProgramCache]: Analyzing trace with hash 644012359, now seen corresponding path program 2 times [2024-10-13 09:12:23,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:12:23,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742472744] [2024-10-13 09:12:23,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:12:23,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:12:24,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:12:36,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-13 09:12:36,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:12:36,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-13 09:12:36,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:12:36,497 INFO L134 CoverageAnalysis]: Checked inductivity of 3425 backedges. 0 proven. 3422 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-13 09:12:36,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:12:36,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742472744] [2024-10-13 09:12:36,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742472744] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:12:36,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1176446387] [2024-10-13 09:12:36,498 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 09:12:36,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:12:36,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:12:36,500 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) [2024-10-13 09:12:36,501 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-13 09:12:37,233 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-13 09:12:37,233 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 09:12:37,239 INFO L255 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-10-13 09:12:37,252 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:12:37,275 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 11 treesize of output 7 [2024-10-13 09:12:37,940 INFO L134 CoverageAnalysis]: Checked inductivity of 3425 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3425 trivial. 0 not checked. [2024-10-13 09:12:37,941 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 09:12:37,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1176446387] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:12:37,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 09:12:37,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [26] total 33 [2024-10-13 09:12:37,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819861878] [2024-10-13 09:12:37,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:12:37,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-13 09:12:37,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:12:37,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-13 09:12:37,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=260, Invalid=796, Unknown=0, NotChecked=0, Total=1056 [2024-10-13 09:12:37,944 INFO L87 Difference]: Start difference. First operand 2999 states and 4810 transitions. Second operand has 10 states, 10 states have (on average 15.8) internal successors, (158), 10 states have internal predecessors, (158), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)