./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-pthread/cs_fib-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-pthread/cs_fib-2.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 2f188ac4b0bdfe335e0fcb7c5645493965a99a7b8a1d7a552e9d512c30775fb8 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 08:50:20,917 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 08:50:20,971 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 08:50:20,975 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 08:50:20,975 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 08:50:20,998 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 08:50:20,999 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 08:50:20,999 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 08:50:21,000 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 08:50:21,001 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 08:50:21,001 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 08:50:21,002 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 08:50:21,002 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 08:50:21,004 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 08:50:21,004 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 08:50:21,004 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 08:50:21,004 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 08:50:21,005 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 08:50:21,005 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 08:50:21,005 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 08:50:21,008 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 08:50:21,008 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 08:50:21,008 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 08:50:21,009 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 08:50:21,009 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 08:50:21,009 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 08:50:21,009 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 08:50:21,009 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 08:50:21,010 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 08:50:21,010 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 08:50:21,010 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 08:50:21,010 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 08:50:21,010 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 08:50:21,010 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 08:50:21,011 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 08:50:21,011 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 08:50:21,011 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 08:50:21,011 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 08:50:21,011 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 08:50:21,011 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 08:50:21,012 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 08:50:21,012 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 08:50:21,013 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2f188ac4b0bdfe335e0fcb7c5645493965a99a7b8a1d7a552e9d512c30775fb8 [2024-11-16 08:50:21,212 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 08:50:21,228 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 08:50:21,230 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 08:50:21,230 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 08:50:21,231 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 08:50:21,232 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-pthread/cs_fib-2.i [2024-11-16 08:50:22,449 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 08:50:22,668 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 08:50:22,672 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-pthread/cs_fib-2.i [2024-11-16 08:50:22,691 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06eb44c42/c1f830db81fe497b943b3efacd42edec/FLAG155aafeae [2024-11-16 08:50:22,704 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06eb44c42/c1f830db81fe497b943b3efacd42edec [2024-11-16 08:50:22,707 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 08:50:22,708 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 08:50:22,711 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 08:50:22,711 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 08:50:22,715 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 08:50:22,716 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:50:22" (1/1) ... [2024-11-16 08:50:22,716 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33849f4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:50:22, skipping insertion in model container [2024-11-16 08:50:22,717 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:50:22" (1/1) ... [2024-11-16 08:50:22,757 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 08:50:23,009 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-pthread/cs_fib-2.i[23457,23470] [2024-11-16 08:50:23,136 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 08:50:23,150 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 08:50:23,187 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-pthread/cs_fib-2.i[23457,23470] [2024-11-16 08:50:23,236 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 08:50:23,273 INFO L204 MainTranslator]: Completed translation [2024-11-16 08:50:23,273 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:50:23 WrapperNode [2024-11-16 08:50:23,273 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 08:50:23,274 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 08:50:23,274 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 08:50:23,274 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 08:50:23,279 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:50:23" (1/1) ... [2024-11-16 08:50:23,299 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:50:23" (1/1) ... [2024-11-16 08:50:23,332 INFO L138 Inliner]: procedures = 145, calls = 437, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 742 [2024-11-16 08:50:23,335 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 08:50:23,336 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 08:50:23,336 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 08:50:23,336 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 08:50:23,344 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:50:23" (1/1) ... [2024-11-16 08:50:23,344 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:50:23" (1/1) ... [2024-11-16 08:50:23,351 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:50:23" (1/1) ... [2024-11-16 08:50:23,379 INFO L175 MemorySlicer]: Split 281 memory accesses to 17 slices as follows [2, 8, 8, 8, 31, 53, 48, 6, 22, 11, 22, 10, 0, 8, 11, 2, 31]. 19 percent of accesses are in the largest equivalence class. The 67 initializations are split as follows [2, 3, 3, 3, 0, 18, 18, 1, 6, 0, 6, 6, 0, 1, 0, 0, 0]. The 65 writes are split as follows [0, 2, 2, 2, 1, 20, 15, 1, 7, 1, 7, 2, 0, 1, 1, 2, 1]. [2024-11-16 08:50:23,379 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:50:23" (1/1) ... [2024-11-16 08:50:23,380 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:50:23" (1/1) ... [2024-11-16 08:50:23,403 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:50:23" (1/1) ... [2024-11-16 08:50:23,405 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:50:23" (1/1) ... [2024-11-16 08:50:23,416 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:50:23" (1/1) ... [2024-11-16 08:50:23,420 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:50:23" (1/1) ... [2024-11-16 08:50:23,433 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 08:50:23,434 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 08:50:23,434 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 08:50:23,434 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 08:50:23,435 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:50:23" (1/1) ... [2024-11-16 08:50:23,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 08:50:23,454 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:50:23,468 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 08:50:23,471 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 08:50:23,510 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-16 08:50:23,510 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-16 08:50:23,511 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-16 08:50:23,511 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-16 08:50:23,511 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-16 08:50:23,511 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-16 08:50:23,511 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-16 08:50:23,512 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-16 08:50:23,512 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-16 08:50:23,513 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-16 08:50:23,513 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-16 08:50:23,513 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-11-16 08:50:23,513 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-11-16 08:50:23,513 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-11-16 08:50:23,513 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-11-16 08:50:23,514 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2024-11-16 08:50:23,514 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2024-11-16 08:50:23,514 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-16 08:50:23,514 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-16 08:50:23,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-16 08:50:23,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-16 08:50:23,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-16 08:50:23,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-16 08:50:23,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-16 08:50:23,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-16 08:50:23,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-16 08:50:23,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-16 08:50:23,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-16 08:50:23,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-16 08:50:23,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-16 08:50:23,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-11-16 08:50:23,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-11-16 08:50:23,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-11-16 08:50:23,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-11-16 08:50:23,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2024-11-16 08:50:23,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2024-11-16 08:50:23,517 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-16 08:50:23,517 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-16 08:50:23,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 08:50:23,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-16 08:50:23,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-16 08:50:23,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-16 08:50:23,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-16 08:50:23,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-16 08:50:23,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-16 08:50:23,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-16 08:50:23,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-16 08:50:23,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-16 08:50:23,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-11-16 08:50:23,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-11-16 08:50:23,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2024-11-16 08:50:23,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2024-11-16 08:50:23,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2024-11-16 08:50:23,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2024-11-16 08:50:23,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2024-11-16 08:50:23,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#16 [2024-11-16 08:50:23,520 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-16 08:50:23,520 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_create [2024-11-16 08:50:23,520 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_create [2024-11-16 08:50:23,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-16 08:50:23,521 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-16 08:50:23,521 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-16 08:50:23,521 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-16 08:50:23,521 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-16 08:50:23,521 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-16 08:50:23,521 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-16 08:50:23,521 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-16 08:50:23,521 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-16 08:50:23,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-11-16 08:50:23,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-11-16 08:50:23,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-11-16 08:50:23,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2024-11-16 08:50:23,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2024-11-16 08:50:23,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2024-11-16 08:50:23,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2024-11-16 08:50:23,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#16 [2024-11-16 08:50:23,523 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2024-11-16 08:50:23,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2024-11-16 08:50:23,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-16 08:50:23,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-16 08:50:23,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-16 08:50:23,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-16 08:50:23,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-16 08:50:23,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-16 08:50:23,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-16 08:50:23,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-16 08:50:23,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-16 08:50:23,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-11-16 08:50:23,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-11-16 08:50:23,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2024-11-16 08:50:23,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2024-11-16 08:50:23,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2024-11-16 08:50:23,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2024-11-16 08:50:23,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2024-11-16 08:50:23,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#15 [2024-11-16 08:50:23,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#16 [2024-11-16 08:50:23,525 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_cs [2024-11-16 08:50:23,525 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_cs [2024-11-16 08:50:23,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 08:50:23,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-16 08:50:23,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-16 08:50:23,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-16 08:50:23,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-16 08:50:23,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-16 08:50:23,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-16 08:50:23,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-16 08:50:23,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-16 08:50:23,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-16 08:50:23,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-16 08:50:23,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-16 08:50:23,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-16 08:50:23,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-16 08:50:23,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-16 08:50:23,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-16 08:50:23,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-16 08:50:23,526 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 08:50:23,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 08:50:23,757 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 08:50:23,759 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 08:50:24,015 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L747-1: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);main_thread_#res#1.base, main_thread_#res#1.offset := 0, 0;call ULTIMATE.dealloc(main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset);havoc main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset;call ULTIMATE.dealloc(main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset);havoc main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset; [2024-11-16 08:50:24,015 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L747-1: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2024-11-16 08:50:24,015 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L747-2: SUMMARY for call __CS_cs(); srcloc: null [2024-11-16 08:50:24,015 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L749-1: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);main_thread_#res#1.base, main_thread_#res#1.offset := 0, 0;call ULTIMATE.dealloc(main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset);havoc main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset;call ULTIMATE.dealloc(main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset);havoc main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset; [2024-11-16 08:50:24,015 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L749-1: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2024-11-16 08:50:24,015 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L749-2: SUMMARY for call __CS_cs(); srcloc: null [2024-11-16 08:50:24,015 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L745-1: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);main_thread_#res#1.base, main_thread_#res#1.offset := 0, 0;call ULTIMATE.dealloc(main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset);havoc main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset;call ULTIMATE.dealloc(main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset);havoc main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset; [2024-11-16 08:50:24,016 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L745-1: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2024-11-16 08:50:24,016 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L745-2: SUMMARY for call __CS_cs(); srcloc: null [2024-11-16 08:50:28,380 INFO L? ?]: Removed 71 outVars from TransFormulas that were not future-live. [2024-11-16 08:50:28,382 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 08:50:28,395 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 08:50:28,396 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 08:50:28,396 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 08:50:28 BoogieIcfgContainer [2024-11-16 08:50:28,397 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 08:50:28,399 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 08:50:28,399 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 08:50:28,419 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 08:50:28,420 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 08:50:22" (1/3) ... [2024-11-16 08:50:28,421 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51c6d853 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:50:28, skipping insertion in model container [2024-11-16 08:50:28,421 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:50:23" (2/3) ... [2024-11-16 08:50:28,422 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51c6d853 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:50:28, skipping insertion in model container [2024-11-16 08:50:28,422 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 08:50:28" (3/3) ... [2024-11-16 08:50:28,423 INFO L112 eAbstractionObserver]: Analyzing ICFG cs_fib-2.i [2024-11-16 08:50:28,447 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 08:50:28,447 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 08:50:28,535 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 08:50:28,541 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;@c687310, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 08:50:28,542 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 08:50:28,547 INFO L276 IsEmpty]: Start isEmpty. Operand has 185 states, 112 states have (on average 1.3303571428571428) internal successors, (149), 113 states have internal predecessors, (149), 66 states have call successors, (66), 5 states have call predecessors, (66), 5 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-16 08:50:28,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2024-11-16 08:50:28,570 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:50:28,571 INFO L215 NwaCegarLoop]: trace histogram [40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:50:28,571 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:50:28,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:50:28,575 INFO L85 PathProgramCache]: Analyzing trace with hash 1330704084, now seen corresponding path program 1 times [2024-11-16 08:50:28,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:50:28,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611149768] [2024-11-16 08:50:28,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:50:28,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:50:28,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:29,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 08:50:29,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:29,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 08:50:29,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:29,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 08:50:29,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:29,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 08:50:29,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:29,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-16 08:50:29,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:29,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-16 08:50:29,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:29,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-16 08:50:29,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:29,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-16 08:50:29,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:29,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-16 08:50:29,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:29,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-16 08:50:29,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:29,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-16 08:50:29,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:29,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-16 08:50:29,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:29,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-16 08:50:29,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:29,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 08:50:29,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:29,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 08:50:29,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:29,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-16 08:50:29,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:29,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-16 08:50:29,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:29,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 08:50:29,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:29,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-16 08:50:29,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:29,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-16 08:50:29,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:29,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-11-16 08:50:29,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:29,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-16 08:50:29,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:29,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-16 08:50:29,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:29,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-16 08:50:29,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:29,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-16 08:50:29,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:29,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-16 08:50:29,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:29,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-11-16 08:50:29,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:29,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-11-16 08:50:29,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:29,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-16 08:50:29,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:29,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2024-11-16 08:50:29,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:29,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2024-11-16 08:50:29,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:29,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2024-11-16 08:50:29,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:29,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2024-11-16 08:50:29,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:29,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2024-11-16 08:50:29,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:29,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2024-11-16 08:50:29,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:29,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2024-11-16 08:50:29,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:29,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2024-11-16 08:50:29,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:29,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2024-11-16 08:50:29,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:29,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2024-11-16 08:50:29,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:29,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2024-11-16 08:50:29,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:29,313 INFO L134 CoverageAnalysis]: Checked inductivity of 3120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3120 trivial. 0 not checked. [2024-11-16 08:50:29,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:50:29,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611149768] [2024-11-16 08:50:29,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611149768] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:50:29,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:50:29,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 08:50:29,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587784909] [2024-11-16 08:50:29,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:50:29,323 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 08:50:29,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:50:29,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 08:50:29,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 08:50:29,345 INFO L87 Difference]: Start difference. First operand has 185 states, 112 states have (on average 1.3303571428571428) internal successors, (149), 113 states have internal predecessors, (149), 66 states have call successors, (66), 5 states have call predecessors, (66), 5 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) Second operand has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 1 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2024-11-16 08:50:29,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:50:29,391 INFO L93 Difference]: Finished difference Result 367 states and 623 transitions. [2024-11-16 08:50:29,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 08:50:29,393 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 1 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) Word has length 255 [2024-11-16 08:50:29,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:50:29,402 INFO L225 Difference]: With dead ends: 367 [2024-11-16 08:50:29,402 INFO L226 Difference]: Without dead ends: 180 [2024-11-16 08:50:29,407 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 08:50:29,410 INFO L432 NwaCegarLoop]: 274 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:50:29,412 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:50:29,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2024-11-16 08:50:29,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 180. [2024-11-16 08:50:29,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 108 states have (on average 1.287037037037037) internal successors, (139), 109 states have internal predecessors, (139), 66 states have call successors, (66), 5 states have call predecessors, (66), 5 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-16 08:50:29,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 270 transitions. [2024-11-16 08:50:29,458 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 270 transitions. Word has length 255 [2024-11-16 08:50:29,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:50:29,458 INFO L471 AbstractCegarLoop]: Abstraction has 180 states and 270 transitions. [2024-11-16 08:50:29,458 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 1 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2024-11-16 08:50:29,458 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 270 transitions. [2024-11-16 08:50:29,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2024-11-16 08:50:29,462 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:50:29,462 INFO L215 NwaCegarLoop]: trace histogram [40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:50:29,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 08:50:29,462 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:50:29,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:50:29,463 INFO L85 PathProgramCache]: Analyzing trace with hash -1160082599, now seen corresponding path program 1 times [2024-11-16 08:50:29,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:50:29,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112716493] [2024-11-16 08:50:29,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:50:29,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:50:29,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:29,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 08:50:29,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:29,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 08:50:29,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:29,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-16 08:50:29,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:29,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-16 08:50:29,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:29,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-16 08:50:29,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:29,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-16 08:50:29,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:29,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-16 08:50:29,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:29,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-16 08:50:29,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:29,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 08:50:29,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:29,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-16 08:50:29,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:29,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-16 08:50:29,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:29,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 08:50:29,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:29,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 08:50:29,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:29,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-16 08:50:29,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:29,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-16 08:50:29,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:29,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-16 08:50:29,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:29,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-16 08:50:29,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:29,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-16 08:50:29,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:29,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-16 08:50:29,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:29,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-16 08:50:29,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:29,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-16 08:50:29,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:29,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-16 08:50:29,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:29,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-16 08:50:29,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:29,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-16 08:50:29,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:29,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-16 08:50:29,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:29,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-11-16 08:50:29,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:29,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-11-16 08:50:29,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:29,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-11-16 08:50:29,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:29,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-11-16 08:50:29,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:29,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-11-16 08:50:29,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:29,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2024-11-16 08:50:29,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:29,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2024-11-16 08:50:29,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:29,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2024-11-16 08:50:29,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:29,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2024-11-16 08:50:29,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:29,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2024-11-16 08:50:29,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:29,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2024-11-16 08:50:29,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:29,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2024-11-16 08:50:29,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:29,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2024-11-16 08:50:29,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:29,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2024-11-16 08:50:29,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:30,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2024-11-16 08:50:30,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:30,004 INFO L134 CoverageAnalysis]: Checked inductivity of 3120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3120 trivial. 0 not checked. [2024-11-16 08:50:30,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:50:30,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112716493] [2024-11-16 08:50:30,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112716493] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:50:30,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:50:30,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:50:30,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103129256] [2024-11-16 08:50:30,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:50:30,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 08:50:30,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:50:30,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 08:50:30,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:50:30,007 INFO L87 Difference]: Start difference. First operand 180 states and 270 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2024-11-16 08:50:34,051 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-16 08:50:34,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:50:34,103 INFO L93 Difference]: Finished difference Result 358 states and 538 transitions. [2024-11-16 08:50:34,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 08:50:34,105 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) Word has length 256 [2024-11-16 08:50:34,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:50:34,107 INFO L225 Difference]: With dead ends: 358 [2024-11-16 08:50:34,107 INFO L226 Difference]: Without dead ends: 185 [2024-11-16 08:50:34,108 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:50:34,109 INFO L432 NwaCegarLoop]: 266 mSDtfsCounter, 5 mSDsluCounter, 529 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 795 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:50:34,110 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 795 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2024-11-16 08:50:34,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2024-11-16 08:50:34,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 182. [2024-11-16 08:50:34,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 110 states have (on average 1.2818181818181817) internal successors, (141), 111 states have internal predecessors, (141), 66 states have call successors, (66), 5 states have call predecessors, (66), 5 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-16 08:50:34,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 272 transitions. [2024-11-16 08:50:34,133 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 272 transitions. Word has length 256 [2024-11-16 08:50:34,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:50:34,133 INFO L471 AbstractCegarLoop]: Abstraction has 182 states and 272 transitions. [2024-11-16 08:50:34,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2024-11-16 08:50:34,143 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 272 transitions. [2024-11-16 08:50:34,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2024-11-16 08:50:34,147 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:50:34,147 INFO L215 NwaCegarLoop]: trace histogram [40, 40, 40, 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] [2024-11-16 08:50:34,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 08:50:34,148 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:50:34,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:50:34,149 INFO L85 PathProgramCache]: Analyzing trace with hash -1342155119, now seen corresponding path program 1 times [2024-11-16 08:50:34,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:50:34,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784211025] [2024-11-16 08:50:34,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:50:34,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:50:34,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:34,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 08:50:34,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:34,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 08:50:34,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:34,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 08:50:34,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:34,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-16 08:50:34,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:34,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-16 08:50:34,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:34,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-16 08:50:34,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:34,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-16 08:50:34,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:34,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-16 08:50:34,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:34,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-16 08:50:34,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:34,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-16 08:50:34,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:34,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-16 08:50:34,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:34,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-16 08:50:34,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:34,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 08:50:34,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:34,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 08:50:34,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:34,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-16 08:50:34,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:34,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-16 08:50:34,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:34,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 08:50:34,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:34,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-16 08:50:34,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:34,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-16 08:50:34,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:34,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-11-16 08:50:34,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:34,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-16 08:50:34,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:34,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-16 08:50:34,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:34,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-16 08:50:34,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:34,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-16 08:50:34,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:34,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-16 08:50:34,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:34,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-11-16 08:50:34,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:34,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-11-16 08:50:34,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:34,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-16 08:50:34,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:34,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2024-11-16 08:50:34,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:34,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2024-11-16 08:50:34,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:34,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2024-11-16 08:50:34,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:34,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2024-11-16 08:50:34,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:34,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2024-11-16 08:50:34,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:34,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2024-11-16 08:50:34,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:34,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2024-11-16 08:50:34,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:34,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2024-11-16 08:50:34,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:34,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2024-11-16 08:50:34,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:34,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2024-11-16 08:50:34,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:34,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2024-11-16 08:50:34,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:34,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2024-11-16 08:50:34,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:34,562 INFO L134 CoverageAnalysis]: Checked inductivity of 3122 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3120 trivial. 0 not checked. [2024-11-16 08:50:34,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:50:34,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784211025] [2024-11-16 08:50:34,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784211025] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:50:34,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:50:34,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:50:34,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147935491] [2024-11-16 08:50:34,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:50:34,563 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 08:50:34,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:50:34,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 08:50:34,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:50:34,564 INFO L87 Difference]: Start difference. First operand 182 states and 272 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2024-11-16 08:50:34,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:50:34,613 INFO L93 Difference]: Finished difference Result 362 states and 543 transitions. [2024-11-16 08:50:34,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 08:50:34,615 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) Word has length 261 [2024-11-16 08:50:34,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:50:34,616 INFO L225 Difference]: With dead ends: 362 [2024-11-16 08:50:34,618 INFO L226 Difference]: Without dead ends: 184 [2024-11-16 08:50:34,619 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:50:34,619 INFO L432 NwaCegarLoop]: 268 mSDtfsCounter, 1 mSDsluCounter, 531 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 799 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:50:34,621 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 799 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:50:34,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2024-11-16 08:50:34,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 184. [2024-11-16 08:50:34,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 112 states have (on average 1.2767857142857142) internal successors, (143), 113 states have internal predecessors, (143), 66 states have call successors, (66), 5 states have call predecessors, (66), 5 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-16 08:50:34,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 274 transitions. [2024-11-16 08:50:34,639 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 274 transitions. Word has length 261 [2024-11-16 08:50:34,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:50:34,640 INFO L471 AbstractCegarLoop]: Abstraction has 184 states and 274 transitions. [2024-11-16 08:50:34,640 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2024-11-16 08:50:34,640 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 274 transitions. [2024-11-16 08:50:34,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2024-11-16 08:50:34,644 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:50:34,644 INFO L215 NwaCegarLoop]: trace histogram [40, 40, 40, 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] [2024-11-16 08:50:34,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 08:50:34,644 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:50:34,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:50:34,645 INFO L85 PathProgramCache]: Analyzing trace with hash -83624174, now seen corresponding path program 1 times [2024-11-16 08:50:34,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:50:34,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212734948] [2024-11-16 08:50:34,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:50:34,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:50:34,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:35,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 08:50:35,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:35,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 08:50:35,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:35,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 08:50:35,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:35,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 08:50:35,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:35,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 08:50:35,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:35,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 08:50:35,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:35,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 08:50:35,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:35,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 08:50:35,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:35,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 08:50:35,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:35,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 08:50:35,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:35,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 08:50:35,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:35,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 08:50:35,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:35,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 08:50:35,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:35,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-16 08:50:35,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:35,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-16 08:50:35,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:35,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-16 08:50:35,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:35,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-16 08:50:35,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:35,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-16 08:50:35,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:35,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-16 08:50:35,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:35,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-16 08:50:35,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:35,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-16 08:50:35,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:35,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-16 08:50:35,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:35,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-16 08:50:35,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:35,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-16 08:50:35,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:35,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-11-16 08:50:35,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:35,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-11-16 08:50:35,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:35,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-11-16 08:50:35,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:35,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-11-16 08:50:35,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:35,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-11-16 08:50:35,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:35,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2024-11-16 08:50:35,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:35,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2024-11-16 08:50:35,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:35,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2024-11-16 08:50:35,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:35,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2024-11-16 08:50:35,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:35,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2024-11-16 08:50:35,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:35,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2024-11-16 08:50:35,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:35,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2024-11-16 08:50:35,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:35,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2024-11-16 08:50:35,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:35,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2024-11-16 08:50:35,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:35,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2024-11-16 08:50:35,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:35,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2024-11-16 08:50:35,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:35,536 INFO L134 CoverageAnalysis]: Checked inductivity of 3124 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3124 trivial. 0 not checked. [2024-11-16 08:50:35,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:50:35,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212734948] [2024-11-16 08:50:35,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212734948] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:50:35,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:50:35,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 08:50:35,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825286218] [2024-11-16 08:50:35,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:50:35,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:50:35,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:50:35,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:50:35,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:50:35,538 INFO L87 Difference]: Start difference. First operand 184 states and 274 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2024-11-16 08:50:35,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:50:35,658 INFO L93 Difference]: Finished difference Result 361 states and 539 transitions. [2024-11-16 08:50:35,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:50:35,658 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) Word has length 263 [2024-11-16 08:50:35,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:50:35,664 INFO L225 Difference]: With dead ends: 361 [2024-11-16 08:50:35,665 INFO L226 Difference]: Without dead ends: 358 [2024-11-16 08:50:35,665 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:50:35,666 INFO L432 NwaCegarLoop]: 262 mSDtfsCounter, 178 mSDsluCounter, 758 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 1020 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:50:35,667 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 1020 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:50:35,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2024-11-16 08:50:35,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 354. [2024-11-16 08:50:35,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 211 states have (on average 1.2796208530805686) internal successors, (270), 212 states have internal predecessors, (270), 131 states have call successors, (131), 11 states have call predecessors, (131), 11 states have return successors, (132), 130 states have call predecessors, (132), 129 states have call successors, (132) [2024-11-16 08:50:35,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 533 transitions. [2024-11-16 08:50:35,708 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 533 transitions. Word has length 263 [2024-11-16 08:50:35,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:50:35,709 INFO L471 AbstractCegarLoop]: Abstraction has 354 states and 533 transitions. [2024-11-16 08:50:35,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2024-11-16 08:50:35,711 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 533 transitions. [2024-11-16 08:50:35,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2024-11-16 08:50:35,714 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:50:35,714 INFO L215 NwaCegarLoop]: trace histogram [40, 40, 40, 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] [2024-11-16 08:50:35,714 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 08:50:35,714 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:50:35,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:50:35,715 INFO L85 PathProgramCache]: Analyzing trace with hash 42180109, now seen corresponding path program 1 times [2024-11-16 08:50:35,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:50:35,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775484651] [2024-11-16 08:50:35,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:50:35,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:50:35,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:36,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 08:50:36,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:36,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 08:50:36,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:36,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 08:50:36,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:36,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 08:50:36,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:36,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 08:50:36,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:36,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 08:50:36,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:36,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 08:50:36,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:36,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 08:50:36,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:36,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 08:50:36,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:36,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 08:50:36,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:36,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 08:50:36,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:36,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 08:50:36,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:36,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 08:50:36,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:36,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-16 08:50:36,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:36,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-16 08:50:36,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:36,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-16 08:50:36,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:36,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-16 08:50:36,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:36,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-16 08:50:36,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:36,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-16 08:50:36,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:36,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-16 08:50:36,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:36,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-16 08:50:36,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:36,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-16 08:50:36,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:36,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-16 08:50:36,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:36,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-16 08:50:36,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:36,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-11-16 08:50:36,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:36,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-11-16 08:50:36,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:36,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-11-16 08:50:36,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:36,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-11-16 08:50:36,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:36,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-11-16 08:50:36,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:36,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2024-11-16 08:50:36,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:36,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2024-11-16 08:50:36,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:36,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2024-11-16 08:50:36,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:36,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2024-11-16 08:50:36,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:36,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2024-11-16 08:50:36,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:36,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2024-11-16 08:50:36,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:36,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2024-11-16 08:50:36,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:36,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2024-11-16 08:50:36,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:36,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2024-11-16 08:50:36,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:36,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2024-11-16 08:50:36,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:36,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2024-11-16 08:50:36,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:36,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2024-11-16 08:50:36,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:36,578 INFO L134 CoverageAnalysis]: Checked inductivity of 3126 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3124 trivial. 0 not checked. [2024-11-16 08:50:36,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:50:36,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775484651] [2024-11-16 08:50:36,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775484651] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:50:36,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:50:36,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 08:50:36,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385426454] [2024-11-16 08:50:36,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:50:36,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:50:36,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:50:36,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:50:36,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:50:36,580 INFO L87 Difference]: Start difference. First operand 354 states and 533 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41) [2024-11-16 08:50:36,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:50:36,689 INFO L93 Difference]: Finished difference Result 365 states and 542 transitions. [2024-11-16 08:50:36,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:50:36,689 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41) Word has length 268 [2024-11-16 08:50:36,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:50:36,692 INFO L225 Difference]: With dead ends: 365 [2024-11-16 08:50:36,692 INFO L226 Difference]: Without dead ends: 362 [2024-11-16 08:50:36,692 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:50:36,693 INFO L432 NwaCegarLoop]: 265 mSDtfsCounter, 174 mSDsluCounter, 759 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 1024 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:50:36,693 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 1024 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:50:36,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2024-11-16 08:50:36,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 358. [2024-11-16 08:50:36,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 358 states, 214 states have (on average 1.2757009345794392) internal successors, (273), 215 states have internal predecessors, (273), 131 states have call successors, (131), 12 states have call predecessors, (131), 12 states have return successors, (132), 130 states have call predecessors, (132), 129 states have call successors, (132) [2024-11-16 08:50:36,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 536 transitions. [2024-11-16 08:50:36,716 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 536 transitions. Word has length 268 [2024-11-16 08:50:36,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:50:36,717 INFO L471 AbstractCegarLoop]: Abstraction has 358 states and 536 transitions. [2024-11-16 08:50:36,717 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41) [2024-11-16 08:50:36,717 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 536 transitions. [2024-11-16 08:50:36,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2024-11-16 08:50:36,720 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:50:36,720 INFO L215 NwaCegarLoop]: trace histogram [40, 40, 40, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:50:36,720 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 08:50:36,720 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:50:36,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:50:36,720 INFO L85 PathProgramCache]: Analyzing trace with hash 417416114, now seen corresponding path program 1 times [2024-11-16 08:50:36,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:50:36,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594595613] [2024-11-16 08:50:36,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:50:36,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:50:36,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:37,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 08:50:37,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:37,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 08:50:37,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:37,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 08:50:37,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:37,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 08:50:37,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:37,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 08:50:37,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:37,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 08:50:37,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:37,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 08:50:37,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:37,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 08:50:37,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:37,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 08:50:37,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:37,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 08:50:37,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:37,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 08:50:37,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:37,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 08:50:37,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:37,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 08:50:37,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:37,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-16 08:50:37,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:37,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-16 08:50:37,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:37,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-16 08:50:37,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:37,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-16 08:50:37,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:37,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-16 08:50:37,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:37,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-16 08:50:37,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:37,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-16 08:50:37,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:37,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-16 08:50:37,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:37,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-16 08:50:37,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:37,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-16 08:50:37,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:37,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-16 08:50:37,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:37,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-11-16 08:50:37,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:37,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-11-16 08:50:37,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:37,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-11-16 08:50:37,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:37,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-11-16 08:50:37,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:37,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-11-16 08:50:37,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:37,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2024-11-16 08:50:37,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:37,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2024-11-16 08:50:37,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:37,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2024-11-16 08:50:37,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:37,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2024-11-16 08:50:37,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:37,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2024-11-16 08:50:37,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:37,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2024-11-16 08:50:37,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:37,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2024-11-16 08:50:37,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:37,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2024-11-16 08:50:37,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:37,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2024-11-16 08:50:37,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:37,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2024-11-16 08:50:37,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:37,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2024-11-16 08:50:37,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:37,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2024-11-16 08:50:37,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:37,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2024-11-16 08:50:37,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:37,496 INFO L134 CoverageAnalysis]: Checked inductivity of 3132 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3128 trivial. 0 not checked. [2024-11-16 08:50:37,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:50:37,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594595613] [2024-11-16 08:50:37,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594595613] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:50:37,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:50:37,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 08:50:37,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094757857] [2024-11-16 08:50:37,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:50:37,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:50:37,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:50:37,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:50:37,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:50:37,498 INFO L87 Difference]: Start difference. First operand 358 states and 536 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-16 08:50:37,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:50:37,621 INFO L93 Difference]: Finished difference Result 369 states and 545 transitions. [2024-11-16 08:50:37,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:50:37,622 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) Word has length 273 [2024-11-16 08:50:37,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:50:37,624 INFO L225 Difference]: With dead ends: 369 [2024-11-16 08:50:37,624 INFO L226 Difference]: Without dead ends: 366 [2024-11-16 08:50:37,625 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:50:37,625 INFO L432 NwaCegarLoop]: 264 mSDtfsCounter, 173 mSDsluCounter, 757 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 1021 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:50:37,625 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 1021 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:50:37,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2024-11-16 08:50:37,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 362. [2024-11-16 08:50:37,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 217 states have (on average 1.271889400921659) internal successors, (276), 218 states have internal predecessors, (276), 131 states have call successors, (131), 13 states have call predecessors, (131), 13 states have return successors, (132), 130 states have call predecessors, (132), 129 states have call successors, (132) [2024-11-16 08:50:37,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 539 transitions. [2024-11-16 08:50:37,651 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 539 transitions. Word has length 273 [2024-11-16 08:50:37,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:50:37,651 INFO L471 AbstractCegarLoop]: Abstraction has 362 states and 539 transitions. [2024-11-16 08:50:37,651 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-16 08:50:37,651 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 539 transitions. [2024-11-16 08:50:37,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2024-11-16 08:50:37,654 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:50:37,654 INFO L215 NwaCegarLoop]: trace histogram [40, 40, 40, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:50:37,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 08:50:37,654 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:50:37,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:50:37,655 INFO L85 PathProgramCache]: Analyzing trace with hash 441220333, now seen corresponding path program 1 times [2024-11-16 08:50:37,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:50:37,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769233029] [2024-11-16 08:50:37,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:50:37,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:50:37,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:38,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 08:50:38,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:38,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 08:50:38,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:38,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 08:50:38,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:38,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 08:50:38,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:38,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 08:50:38,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:38,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 08:50:38,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:38,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 08:50:38,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:38,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 08:50:38,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:38,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 08:50:38,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:38,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 08:50:38,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:38,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 08:50:38,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:38,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 08:50:38,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:38,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 08:50:38,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:38,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-16 08:50:38,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:38,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-16 08:50:38,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:38,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-16 08:50:38,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:38,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-16 08:50:38,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:38,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-16 08:50:38,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:38,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-16 08:50:38,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:38,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-16 08:50:38,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:38,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-16 08:50:38,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:38,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-16 08:50:38,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:38,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-16 08:50:38,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:38,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-16 08:50:38,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:38,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-11-16 08:50:38,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:38,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-11-16 08:50:38,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:38,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-11-16 08:50:38,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:38,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-11-16 08:50:38,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:38,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-11-16 08:50:38,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:38,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2024-11-16 08:50:38,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:38,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2024-11-16 08:50:38,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:38,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2024-11-16 08:50:38,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:38,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2024-11-16 08:50:38,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:38,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2024-11-16 08:50:38,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:38,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2024-11-16 08:50:38,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:38,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2024-11-16 08:50:38,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:38,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2024-11-16 08:50:38,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:38,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2024-11-16 08:50:38,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:38,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2024-11-16 08:50:38,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:38,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2024-11-16 08:50:38,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:38,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2024-11-16 08:50:38,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:38,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2024-11-16 08:50:38,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:38,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2024-11-16 08:50:38,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:38,444 INFO L134 CoverageAnalysis]: Checked inductivity of 3142 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 3136 trivial. 0 not checked. [2024-11-16 08:50:38,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:50:38,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769233029] [2024-11-16 08:50:38,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769233029] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:50:38,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:50:38,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 08:50:38,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120141624] [2024-11-16 08:50:38,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:50:38,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:50:38,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:50:38,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:50:38,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:50:38,446 INFO L87 Difference]: Start difference. First operand 362 states and 539 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) [2024-11-16 08:50:38,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:50:38,559 INFO L93 Difference]: Finished difference Result 373 states and 548 transitions. [2024-11-16 08:50:38,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:50:38,559 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) Word has length 278 [2024-11-16 08:50:38,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:50:38,562 INFO L225 Difference]: With dead ends: 373 [2024-11-16 08:50:38,562 INFO L226 Difference]: Without dead ends: 370 [2024-11-16 08:50:38,562 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:50:38,562 INFO L432 NwaCegarLoop]: 265 mSDtfsCounter, 172 mSDsluCounter, 759 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 1024 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:50:38,563 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 1024 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:50:38,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2024-11-16 08:50:38,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 366. [2024-11-16 08:50:38,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 220 states have (on average 1.268181818181818) internal successors, (279), 221 states have internal predecessors, (279), 131 states have call successors, (131), 14 states have call predecessors, (131), 14 states have return successors, (132), 130 states have call predecessors, (132), 129 states have call successors, (132) [2024-11-16 08:50:38,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 542 transitions. [2024-11-16 08:50:38,609 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 542 transitions. Word has length 278 [2024-11-16 08:50:38,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:50:38,609 INFO L471 AbstractCegarLoop]: Abstraction has 366 states and 542 transitions. [2024-11-16 08:50:38,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) [2024-11-16 08:50:38,610 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 542 transitions. [2024-11-16 08:50:38,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2024-11-16 08:50:38,612 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:50:38,613 INFO L215 NwaCegarLoop]: trace histogram [40, 40, 40, 5, 4, 4, 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] [2024-11-16 08:50:38,613 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 08:50:38,613 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:50:38,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:50:38,613 INFO L85 PathProgramCache]: Analyzing trace with hash -383455150, now seen corresponding path program 1 times [2024-11-16 08:50:38,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:50:38,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188257294] [2024-11-16 08:50:38,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:50:38,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:50:38,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:39,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 08:50:39,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:39,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 08:50:39,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:39,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 08:50:39,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:39,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 08:50:39,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:39,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 08:50:39,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:39,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 08:50:39,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:39,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 08:50:39,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:39,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 08:50:39,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:39,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 08:50:39,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:39,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 08:50:39,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:39,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 08:50:39,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:39,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 08:50:39,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:39,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 08:50:39,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:39,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-16 08:50:39,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:39,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-16 08:50:39,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:39,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-16 08:50:39,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:39,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-16 08:50:39,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:39,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-16 08:50:39,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:39,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-16 08:50:39,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:39,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-16 08:50:39,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:39,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-16 08:50:39,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:39,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-16 08:50:39,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:39,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-16 08:50:39,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:39,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-16 08:50:39,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:39,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-11-16 08:50:39,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:39,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-11-16 08:50:39,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:39,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-11-16 08:50:39,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:39,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-11-16 08:50:39,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:39,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-11-16 08:50:39,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:39,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2024-11-16 08:50:39,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:39,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2024-11-16 08:50:39,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:39,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2024-11-16 08:50:39,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:39,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2024-11-16 08:50:39,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:39,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2024-11-16 08:50:39,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:39,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2024-11-16 08:50:39,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:39,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2024-11-16 08:50:39,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:39,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2024-11-16 08:50:39,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:39,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2024-11-16 08:50:39,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:39,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2024-11-16 08:50:39,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:39,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2024-11-16 08:50:39,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:39,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2024-11-16 08:50:39,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:39,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2024-11-16 08:50:39,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:39,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2024-11-16 08:50:39,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:39,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2024-11-16 08:50:39,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:39,317 INFO L134 CoverageAnalysis]: Checked inductivity of 3156 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 3148 trivial. 0 not checked. [2024-11-16 08:50:39,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:50:39,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188257294] [2024-11-16 08:50:39,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188257294] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:50:39,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:50:39,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 08:50:39,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844749981] [2024-11-16 08:50:39,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:50:39,318 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:50:39,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:50:39,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:50:39,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:50:39,319 INFO L87 Difference]: Start difference. First operand 366 states and 542 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-16 08:50:39,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:50:39,449 INFO L93 Difference]: Finished difference Result 377 states and 551 transitions. [2024-11-16 08:50:39,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:50:39,449 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 283 [2024-11-16 08:50:39,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:50:39,452 INFO L225 Difference]: With dead ends: 377 [2024-11-16 08:50:39,452 INFO L226 Difference]: Without dead ends: 374 [2024-11-16 08:50:39,453 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:50:39,453 INFO L432 NwaCegarLoop]: 265 mSDtfsCounter, 171 mSDsluCounter, 759 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 1024 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:50:39,453 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 1024 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:50:39,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2024-11-16 08:50:39,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 370. [2024-11-16 08:50:39,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 223 states have (on average 1.2645739910313902) internal successors, (282), 224 states have internal predecessors, (282), 131 states have call successors, (131), 15 states have call predecessors, (131), 15 states have return successors, (132), 130 states have call predecessors, (132), 129 states have call successors, (132) [2024-11-16 08:50:39,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 545 transitions. [2024-11-16 08:50:39,497 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 545 transitions. Word has length 283 [2024-11-16 08:50:39,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:50:39,498 INFO L471 AbstractCegarLoop]: Abstraction has 370 states and 545 transitions. [2024-11-16 08:50:39,498 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-16 08:50:39,498 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 545 transitions. [2024-11-16 08:50:39,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2024-11-16 08:50:39,502 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:50:39,502 INFO L215 NwaCegarLoop]: trace histogram [40, 40, 40, 6, 5, 5, 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] [2024-11-16 08:50:39,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 08:50:39,502 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:50:39,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:50:39,503 INFO L85 PathProgramCache]: Analyzing trace with hash -2022706227, now seen corresponding path program 1 times [2024-11-16 08:50:39,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:50:39,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969383425] [2024-11-16 08:50:39,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:50:39,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:50:39,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 08:50:40,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 08:50:40,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 08:50:40,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 08:50:40,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 08:50:40,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 08:50:40,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 08:50:40,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 08:50:40,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 08:50:40,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 08:50:40,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 08:50:40,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 08:50:40,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 08:50:40,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-16 08:50:40,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-16 08:50:40,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-16 08:50:40,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-16 08:50:40,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-16 08:50:40,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-16 08:50:40,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-16 08:50:40,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-16 08:50:40,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-16 08:50:40,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-16 08:50:40,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-16 08:50:40,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-11-16 08:50:40,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-11-16 08:50:40,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-11-16 08:50:40,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-11-16 08:50:40,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-11-16 08:50:40,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2024-11-16 08:50:40,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2024-11-16 08:50:40,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2024-11-16 08:50:40,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2024-11-16 08:50:40,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2024-11-16 08:50:40,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2024-11-16 08:50:40,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2024-11-16 08:50:40,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2024-11-16 08:50:40,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2024-11-16 08:50:40,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2024-11-16 08:50:40,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2024-11-16 08:50:40,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2024-11-16 08:50:40,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2024-11-16 08:50:40,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2024-11-16 08:50:40,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2024-11-16 08:50:40,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2024-11-16 08:50:40,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,277 INFO L134 CoverageAnalysis]: Checked inductivity of 3174 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 3164 trivial. 0 not checked. [2024-11-16 08:50:40,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:50:40,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969383425] [2024-11-16 08:50:40,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969383425] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:50:40,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:50:40,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 08:50:40,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880846673] [2024-11-16 08:50:40,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:50:40,278 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:50:40,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:50:40,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:50:40,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:50:40,279 INFO L87 Difference]: Start difference. First operand 370 states and 545 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (45), 1 states have call predecessors, (45), 1 states have call successors, (45) [2024-11-16 08:50:40,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:50:40,392 INFO L93 Difference]: Finished difference Result 381 states and 554 transitions. [2024-11-16 08:50:40,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:50:40,392 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (45), 1 states have call predecessors, (45), 1 states have call successors, (45) Word has length 288 [2024-11-16 08:50:40,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:50:40,394 INFO L225 Difference]: With dead ends: 381 [2024-11-16 08:50:40,394 INFO L226 Difference]: Without dead ends: 376 [2024-11-16 08:50:40,395 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:50:40,395 INFO L432 NwaCegarLoop]: 265 mSDtfsCounter, 170 mSDsluCounter, 759 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 1024 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:50:40,395 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 1024 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:50:40,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2024-11-16 08:50:40,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 372. [2024-11-16 08:50:40,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 225 states have (on average 1.2577777777777779) internal successors, (283), 225 states have internal predecessors, (283), 131 states have call successors, (131), 16 states have call predecessors, (131), 15 states have return successors, (132), 130 states have call predecessors, (132), 129 states have call successors, (132) [2024-11-16 08:50:40,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 546 transitions. [2024-11-16 08:50:40,425 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 546 transitions. Word has length 288 [2024-11-16 08:50:40,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:50:40,426 INFO L471 AbstractCegarLoop]: Abstraction has 372 states and 546 transitions. [2024-11-16 08:50:40,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (45), 1 states have call predecessors, (45), 1 states have call successors, (45) [2024-11-16 08:50:40,426 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 546 transitions. [2024-11-16 08:50:40,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2024-11-16 08:50:40,429 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:50:40,429 INFO L215 NwaCegarLoop]: trace histogram [40, 40, 40, 7, 6, 6, 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] [2024-11-16 08:50:40,429 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 08:50:40,429 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:50:40,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:50:40,429 INFO L85 PathProgramCache]: Analyzing trace with hash 216859890, now seen corresponding path program 1 times [2024-11-16 08:50:40,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:50:40,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990513922] [2024-11-16 08:50:40,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:50:40,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:50:40,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 08:50:40,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 08:50:40,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 08:50:40,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 08:50:40,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 08:50:40,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 08:50:40,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 08:50:40,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 08:50:40,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 08:50:40,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 08:50:40,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 08:50:40,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 08:50:40,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 08:50:40,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-16 08:50:40,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-16 08:50:40,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-16 08:50:40,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-16 08:50:40,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-16 08:50:40,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-16 08:50:40,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-16 08:50:40,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-16 08:50:40,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-16 08:50:40,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-16 08:50:40,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-16 08:50:40,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-11-16 08:50:40,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-11-16 08:50:40,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-11-16 08:50:40,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-11-16 08:50:40,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-11-16 08:50:40,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2024-11-16 08:50:40,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2024-11-16 08:50:40,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2024-11-16 08:50:40,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2024-11-16 08:50:40,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2024-11-16 08:50:40,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2024-11-16 08:50:40,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2024-11-16 08:50:40,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2024-11-16 08:50:40,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2024-11-16 08:50:40,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2024-11-16 08:50:40,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2024-11-16 08:50:40,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2024-11-16 08:50:40,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2024-11-16 08:50:40,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2024-11-16 08:50:40,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2024-11-16 08:50:40,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2024-11-16 08:50:40,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2024-11-16 08:50:40,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:40,966 INFO L134 CoverageAnalysis]: Checked inductivity of 3196 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 3184 trivial. 0 not checked. [2024-11-16 08:50:40,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:50:40,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990513922] [2024-11-16 08:50:40,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990513922] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:50:40,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:50:40,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 08:50:40,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805362939] [2024-11-16 08:50:40,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:50:40,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:50:40,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:50:40,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:50:40,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:50:40,968 INFO L87 Difference]: Start difference. First operand 372 states and 546 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (46), 1 states have call predecessors, (46), 1 states have call successors, (46) [2024-11-16 08:50:41,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:50:41,031 INFO L93 Difference]: Finished difference Result 376 states and 549 transitions. [2024-11-16 08:50:41,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:50:41,032 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (46), 1 states have call predecessors, (46), 1 states have call successors, (46) Word has length 293 [2024-11-16 08:50:41,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:50:41,034 INFO L225 Difference]: With dead ends: 376 [2024-11-16 08:50:41,034 INFO L226 Difference]: Without dead ends: 257 [2024-11-16 08:50:41,034 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:50:41,035 INFO L432 NwaCegarLoop]: 270 mSDtfsCounter, 165 mSDsluCounter, 783 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 1053 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:50:41,035 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 1053 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:50:41,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2024-11-16 08:50:41,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 256. [2024-11-16 08:50:41,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 162 states have (on average 1.345679012345679) internal successors, (218), 163 states have internal predecessors, (218), 84 states have call successors, (84), 9 states have call predecessors, (84), 9 states have return successors, (85), 83 states have call predecessors, (85), 83 states have call successors, (85) [2024-11-16 08:50:41,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 387 transitions. [2024-11-16 08:50:41,063 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 387 transitions. Word has length 293 [2024-11-16 08:50:41,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:50:41,063 INFO L471 AbstractCegarLoop]: Abstraction has 256 states and 387 transitions. [2024-11-16 08:50:41,064 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (46), 1 states have call predecessors, (46), 1 states have call successors, (46) [2024-11-16 08:50:41,064 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 387 transitions. [2024-11-16 08:50:41,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2024-11-16 08:50:41,065 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:50:41,065 INFO L215 NwaCegarLoop]: trace histogram [44, 44, 44, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:50:41,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 08:50:41,066 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:50:41,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:50:41,066 INFO L85 PathProgramCache]: Analyzing trace with hash 1357527258, now seen corresponding path program 1 times [2024-11-16 08:50:41,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:50:41,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531436640] [2024-11-16 08:50:41,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:50:41,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:50:41,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:41,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 08:50:41,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:41,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-16 08:50:41,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:41,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 08:50:41,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:41,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 08:50:41,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:41,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-16 08:50:41,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:41,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 08:50:41,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:41,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 08:50:41,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:41,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 08:50:41,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:41,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 08:50:41,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:41,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-16 08:50:41,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:41,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 08:50:41,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:41,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-16 08:50:41,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:41,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-16 08:50:41,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:41,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-16 08:50:41,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:41,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-16 08:50:42,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:42,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-16 08:50:42,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:42,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-16 08:50:42,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:42,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-16 08:50:42,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:42,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-16 08:50:42,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:42,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-16 08:50:42,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:42,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-16 08:50:42,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:42,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-11-16 08:50:42,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:42,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-11-16 08:50:42,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:42,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-11-16 08:50:42,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:42,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-16 08:50:42,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:42,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-11-16 08:50:42,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:42,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-11-16 08:50:42,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:42,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-11-16 08:50:42,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:42,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-11-16 08:50:42,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:42,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2024-11-16 08:50:42,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:42,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2024-11-16 08:50:42,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:42,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2024-11-16 08:50:42,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:42,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2024-11-16 08:50:42,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:42,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2024-11-16 08:50:42,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:42,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2024-11-16 08:50:42,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:42,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2024-11-16 08:50:42,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:42,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2024-11-16 08:50:42,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:42,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2024-11-16 08:50:42,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:42,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2024-11-16 08:50:42,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:42,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2024-11-16 08:50:42,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:42,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2024-11-16 08:50:42,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:42,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2024-11-16 08:50:42,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:42,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2024-11-16 08:50:42,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:42,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2024-11-16 08:50:42,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:42,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2024-11-16 08:50:42,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:42,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2024-11-16 08:50:42,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:42,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2024-11-16 08:50:42,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:42,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2024-11-16 08:50:42,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:42,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2024-11-16 08:50:42,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:42,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2024-11-16 08:50:42,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:42,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2024-11-16 08:50:42,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:50:42,076 INFO L134 CoverageAnalysis]: Checked inductivity of 3822 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3822 trivial. 0 not checked. [2024-11-16 08:50:42,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:50:42,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531436640] [2024-11-16 08:50:42,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531436640] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:50:42,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:50:42,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 08:50:42,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925142343] [2024-11-16 08:50:42,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:50:42,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 08:50:42,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:50:42,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 08:50:42,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-16 08:50:42,078 INFO L87 Difference]: Start difference. First operand 256 states and 387 transitions. Second operand has 8 states, 7 states have (on average 12.142857142857142) internal successors, (85), 5 states have internal predecessors, (85), 4 states have call successors, (49), 5 states have call predecessors, (49), 2 states have return successors, (48), 3 states have call predecessors, (48), 4 states have call successors, (48) [2024-11-16 08:50:46,100 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-16 08:50:50,130 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-16 08:50:54,157 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-16 08:50:58,187 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-16 08:51:02,194 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-16 08:51:06,211 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-16 08:51:08,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:51:08,303 INFO L93 Difference]: Finished difference Result 627 states and 946 transitions. [2024-11-16 08:51:08,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-16 08:51:08,304 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.142857142857142) internal successors, (85), 5 states have internal predecessors, (85), 4 states have call successors, (49), 5 states have call predecessors, (49), 2 states have return successors, (48), 3 states have call predecessors, (48), 4 states have call successors, (48) Word has length 331 [2024-11-16 08:51:08,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:51:08,309 INFO L225 Difference]: With dead ends: 627 [2024-11-16 08:51:08,309 INFO L226 Difference]: Without dead ends: 521 [2024-11-16 08:51:08,310 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2024-11-16 08:51:08,310 INFO L432 NwaCegarLoop]: 338 mSDtfsCounter, 353 mSDsluCounter, 924 mSDsCounter, 0 mSdLazyCounter, 810 mSolverCounterSat, 220 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 404 SdHoareTripleChecker+Valid, 1262 SdHoareTripleChecker+Invalid, 1036 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 220 IncrementalHoareTripleChecker+Valid, 810 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.5s IncrementalHoareTripleChecker+Time [2024-11-16 08:51:08,310 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [404 Valid, 1262 Invalid, 1036 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [220 Valid, 810 Invalid, 6 Unknown, 0 Unchecked, 25.5s Time] [2024-11-16 08:51:08,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2024-11-16 08:51:08,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 493. [2024-11-16 08:51:08,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 493 states, 312 states have (on average 1.3397435897435896) internal successors, (418), 317 states have internal predecessors, (418), 159 states have call successors, (159), 17 states have call predecessors, (159), 21 states have return successors, (174), 158 states have call predecessors, (174), 158 states have call successors, (174) [2024-11-16 08:51:08,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 751 transitions. [2024-11-16 08:51:08,351 INFO L78 Accepts]: Start accepts. Automaton has 493 states and 751 transitions. Word has length 331 [2024-11-16 08:51:08,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:51:08,351 INFO L471 AbstractCegarLoop]: Abstraction has 493 states and 751 transitions. [2024-11-16 08:51:08,351 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.142857142857142) internal successors, (85), 5 states have internal predecessors, (85), 4 states have call successors, (49), 5 states have call predecessors, (49), 2 states have return successors, (48), 3 states have call predecessors, (48), 4 states have call successors, (48) [2024-11-16 08:51:08,352 INFO L276 IsEmpty]: Start isEmpty. Operand 493 states and 751 transitions. [2024-11-16 08:51:08,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2024-11-16 08:51:08,354 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:51:08,354 INFO L215 NwaCegarLoop]: trace histogram [44, 44, 44, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:51:08,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 08:51:08,354 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:51:08,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:51:08,355 INFO L85 PathProgramCache]: Analyzing trace with hash 86144633, now seen corresponding path program 1 times [2024-11-16 08:51:08,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:51:08,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302877205] [2024-11-16 08:51:08,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:51:08,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:51:08,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:08,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 08:51:08,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:09,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-16 08:51:09,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:09,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 08:51:09,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:09,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 08:51:09,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:09,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-16 08:51:09,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:09,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 08:51:09,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:09,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 08:51:09,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:09,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 08:51:09,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:09,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 08:51:09,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:09,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-16 08:51:09,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:09,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 08:51:09,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:09,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-16 08:51:09,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:09,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-16 08:51:09,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:09,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-16 08:51:09,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:09,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-16 08:51:09,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:09,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-16 08:51:09,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:09,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-16 08:51:09,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:09,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-16 08:51:09,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:09,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-16 08:51:09,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:09,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-16 08:51:09,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:09,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-16 08:51:09,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:09,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-11-16 08:51:09,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:09,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-11-16 08:51:09,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:09,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-11-16 08:51:09,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:09,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-16 08:51:09,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:09,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-11-16 08:51:09,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:09,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-11-16 08:51:09,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:09,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-11-16 08:51:09,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:09,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-11-16 08:51:09,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:09,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2024-11-16 08:51:09,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:09,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2024-11-16 08:51:09,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:09,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2024-11-16 08:51:09,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:09,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2024-11-16 08:51:09,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:09,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2024-11-16 08:51:09,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:09,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2024-11-16 08:51:09,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:09,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2024-11-16 08:51:09,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:09,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2024-11-16 08:51:09,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:09,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2024-11-16 08:51:09,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:09,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2024-11-16 08:51:09,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:09,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2024-11-16 08:51:09,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:09,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2024-11-16 08:51:09,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:09,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2024-11-16 08:51:09,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:09,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2024-11-16 08:51:09,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:09,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2024-11-16 08:51:09,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:09,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2024-11-16 08:51:09,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:09,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2024-11-16 08:51:09,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:09,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2024-11-16 08:51:09,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:09,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2024-11-16 08:51:09,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:09,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2024-11-16 08:51:09,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:09,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2024-11-16 08:51:09,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:09,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2024-11-16 08:51:09,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:09,206 INFO L134 CoverageAnalysis]: Checked inductivity of 3822 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3822 trivial. 0 not checked. [2024-11-16 08:51:09,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:51:09,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302877205] [2024-11-16 08:51:09,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302877205] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:51:09,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:51:09,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 08:51:09,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431658263] [2024-11-16 08:51:09,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:51:09,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 08:51:09,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:51:09,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 08:51:09,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-16 08:51:09,208 INFO L87 Difference]: Start difference. First operand 493 states and 751 transitions. Second operand has 8 states, 7 states have (on average 12.142857142857142) internal successors, (85), 5 states have internal predecessors, (85), 4 states have call successors, (49), 5 states have call predecessors, (49), 2 states have return successors, (48), 3 states have call predecessors, (48), 4 states have call successors, (48) [2024-11-16 08:51:13,227 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-16 08:51:17,238 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-16 08:51:21,252 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-16 08:51:25,269 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-16 08:51:29,277 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-16 08:51:33,295 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-16 08:51:35,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:51:35,231 INFO L93 Difference]: Finished difference Result 918 states and 1378 transitions. [2024-11-16 08:51:35,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-16 08:51:35,231 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.142857142857142) internal successors, (85), 5 states have internal predecessors, (85), 4 states have call successors, (49), 5 states have call predecessors, (49), 2 states have return successors, (48), 3 states have call predecessors, (48), 4 states have call successors, (48) Word has length 331 [2024-11-16 08:51:35,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:51:35,234 INFO L225 Difference]: With dead ends: 918 [2024-11-16 08:51:35,234 INFO L226 Difference]: Without dead ends: 439 [2024-11-16 08:51:35,236 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2024-11-16 08:51:35,236 INFO L432 NwaCegarLoop]: 345 mSDtfsCounter, 379 mSDsluCounter, 943 mSDsCounter, 0 mSdLazyCounter, 808 mSolverCounterSat, 294 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 430 SdHoareTripleChecker+Valid, 1288 SdHoareTripleChecker+Invalid, 1108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 294 IncrementalHoareTripleChecker+Valid, 808 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.4s IncrementalHoareTripleChecker+Time [2024-11-16 08:51:35,236 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [430 Valid, 1288 Invalid, 1108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [294 Valid, 808 Invalid, 6 Unknown, 0 Unchecked, 25.4s Time] [2024-11-16 08:51:35,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2024-11-16 08:51:35,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 418. [2024-11-16 08:51:35,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 418 states, 261 states have (on average 1.260536398467433) internal successors, (329), 264 states have internal predecessors, (329), 138 states have call successors, (138), 16 states have call predecessors, (138), 18 states have return successors, (145), 137 states have call predecessors, (145), 137 states have call successors, (145) [2024-11-16 08:51:35,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 612 transitions. [2024-11-16 08:51:35,274 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 612 transitions. Word has length 331 [2024-11-16 08:51:35,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:51:35,274 INFO L471 AbstractCegarLoop]: Abstraction has 418 states and 612 transitions. [2024-11-16 08:51:35,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.142857142857142) internal successors, (85), 5 states have internal predecessors, (85), 4 states have call successors, (49), 5 states have call predecessors, (49), 2 states have return successors, (48), 3 states have call predecessors, (48), 4 states have call successors, (48) [2024-11-16 08:51:35,274 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 612 transitions. [2024-11-16 08:51:35,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2024-11-16 08:51:35,276 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:51:35,276 INFO L215 NwaCegarLoop]: trace histogram [44, 44, 44, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:51:35,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 08:51:35,277 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:51:35,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:51:35,277 INFO L85 PathProgramCache]: Analyzing trace with hash 927654233, now seen corresponding path program 1 times [2024-11-16 08:51:35,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:51:35,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718378088] [2024-11-16 08:51:35,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:51:35,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:51:35,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:35,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 08:51:35,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:35,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-16 08:51:35,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:35,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 08:51:35,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:35,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 08:51:35,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:35,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-16 08:51:35,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:35,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 08:51:35,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:35,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 08:51:35,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:36,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 08:51:36,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:36,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 08:51:36,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:36,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-16 08:51:36,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:36,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 08:51:36,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:36,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-16 08:51:36,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:36,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-16 08:51:36,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:36,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-16 08:51:36,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:36,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-16 08:51:36,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:36,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-16 08:51:36,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:36,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-16 08:51:36,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:36,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-16 08:51:36,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:36,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-16 08:51:36,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:36,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-16 08:51:36,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:36,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-16 08:51:36,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:36,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-11-16 08:51:36,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:36,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-11-16 08:51:36,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:36,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-11-16 08:51:36,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:36,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-16 08:51:36,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:36,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-11-16 08:51:36,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:36,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-11-16 08:51:36,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:36,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-11-16 08:51:36,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:36,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-11-16 08:51:36,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:36,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2024-11-16 08:51:36,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:36,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2024-11-16 08:51:36,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:36,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2024-11-16 08:51:36,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:36,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2024-11-16 08:51:36,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:36,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2024-11-16 08:51:36,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:36,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2024-11-16 08:51:36,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:36,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2024-11-16 08:51:36,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:36,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2024-11-16 08:51:36,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:36,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2024-11-16 08:51:36,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:36,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2024-11-16 08:51:36,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:36,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2024-11-16 08:51:36,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:36,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2024-11-16 08:51:36,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:36,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2024-11-16 08:51:36,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:36,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2024-11-16 08:51:36,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:36,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2024-11-16 08:51:36,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:36,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2024-11-16 08:51:36,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:36,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2024-11-16 08:51:36,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:36,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2024-11-16 08:51:36,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:36,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2024-11-16 08:51:36,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:36,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2024-11-16 08:51:36,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:36,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2024-11-16 08:51:36,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:36,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2024-11-16 08:51:36,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:36,138 INFO L134 CoverageAnalysis]: Checked inductivity of 3822 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 3819 trivial. 0 not checked. [2024-11-16 08:51:36,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:51:36,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718378088] [2024-11-16 08:51:36,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718378088] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 08:51:36,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1481804019] [2024-11-16 08:51:36,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:51:36,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 08:51:36,139 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:51:36,141 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 08:51:36,142 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 08:51:36,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:36,770 INFO L255 TraceCheckSpWp]: Trace formula consists of 1954 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-16 08:51:36,787 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 08:51:38,074 INFO L134 CoverageAnalysis]: Checked inductivity of 3822 backedges. 0 proven. 640 refuted. 0 times theorem prover too weak. 3182 trivial. 0 not checked. [2024-11-16 08:51:38,075 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 08:51:38,802 INFO L134 CoverageAnalysis]: Checked inductivity of 3822 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3822 trivial. 0 not checked. [2024-11-16 08:51:38,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1481804019] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-16 08:51:38,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-16 08:51:38,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11, 7] total 21 [2024-11-16 08:51:38,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933049741] [2024-11-16 08:51:38,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:51:38,803 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 08:51:38,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:51:38,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 08:51:38,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=351, Unknown=0, NotChecked=0, Total=420 [2024-11-16 08:51:38,803 INFO L87 Difference]: Start difference. First operand 418 states and 612 transitions. Second operand has 8 states, 8 states have (on average 10.625) internal successors, (85), 7 states have internal predecessors, (85), 3 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (48), 3 states have call predecessors, (48), 3 states have call successors, (48) [2024-11-16 08:51:40,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:51:40,237 INFO L93 Difference]: Finished difference Result 910 states and 1333 transitions. [2024-11-16 08:51:40,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 08:51:40,238 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 7 states have internal predecessors, (85), 3 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (48), 3 states have call predecessors, (48), 3 states have call successors, (48) Word has length 331 [2024-11-16 08:51:40,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:51:40,242 INFO L225 Difference]: With dead ends: 910 [2024-11-16 08:51:40,242 INFO L226 Difference]: Without dead ends: 907 [2024-11-16 08:51:40,243 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 775 GetRequests, 750 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=103, Invalid=497, Unknown=0, NotChecked=0, Total=600 [2024-11-16 08:51:40,243 INFO L432 NwaCegarLoop]: 253 mSDtfsCounter, 840 mSDsluCounter, 637 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 701 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 840 SdHoareTripleChecker+Valid, 890 SdHoareTripleChecker+Invalid, 1028 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 701 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:51:40,243 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [840 Valid, 890 Invalid, 1028 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [701 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-16 08:51:40,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 907 states. [2024-11-16 08:51:40,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 907 to 796. [2024-11-16 08:51:40,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 796 states, 477 states have (on average 1.228511530398323) internal successors, (586), 481 states have internal predecessors, (586), 290 states have call successors, (290), 26 states have call predecessors, (290), 28 states have return successors, (298), 288 states have call predecessors, (298), 288 states have call successors, (298) [2024-11-16 08:51:40,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 796 states to 796 states and 1174 transitions. [2024-11-16 08:51:40,314 INFO L78 Accepts]: Start accepts. Automaton has 796 states and 1174 transitions. Word has length 331 [2024-11-16 08:51:40,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:51:40,314 INFO L471 AbstractCegarLoop]: Abstraction has 796 states and 1174 transitions. [2024-11-16 08:51:40,315 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 7 states have internal predecessors, (85), 3 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (48), 3 states have call predecessors, (48), 3 states have call successors, (48) [2024-11-16 08:51:40,315 INFO L276 IsEmpty]: Start isEmpty. Operand 796 states and 1174 transitions. [2024-11-16 08:51:40,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2024-11-16 08:51:40,318 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:51:40,318 INFO L215 NwaCegarLoop]: trace histogram [44, 44, 44, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:51:40,337 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-16 08:51:40,519 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-16 08:51:40,519 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:51:40,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:51:40,520 INFO L85 PathProgramCache]: Analyzing trace with hash -877849062, now seen corresponding path program 1 times [2024-11-16 08:51:40,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:51:40,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624223335] [2024-11-16 08:51:40,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:51:40,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:51:40,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:41,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 08:51:41,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:41,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-16 08:51:41,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:41,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 08:51:41,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:41,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 08:51:41,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:41,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-16 08:51:41,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:41,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 08:51:41,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:41,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 08:51:41,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:41,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 08:51:41,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:41,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 08:51:41,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:41,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-16 08:51:41,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:41,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 08:51:41,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:41,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-16 08:51:41,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:41,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-16 08:51:41,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:41,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-16 08:51:41,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:41,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-16 08:51:41,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:41,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-16 08:51:41,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:41,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-16 08:51:41,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:41,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-16 08:51:41,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:41,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-16 08:51:41,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:41,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-16 08:51:41,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:41,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-16 08:51:41,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:41,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-11-16 08:51:41,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:41,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-11-16 08:51:41,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:41,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-11-16 08:51:41,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:41,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-16 08:51:41,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:41,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-11-16 08:51:41,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:41,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-11-16 08:51:41,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:41,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-11-16 08:51:41,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:41,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-11-16 08:51:41,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:41,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2024-11-16 08:51:41,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:41,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2024-11-16 08:51:41,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:41,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2024-11-16 08:51:41,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:41,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2024-11-16 08:51:41,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:41,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2024-11-16 08:51:41,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:41,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2024-11-16 08:51:41,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:41,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2024-11-16 08:51:41,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:41,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2024-11-16 08:51:41,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:41,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2024-11-16 08:51:41,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:41,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2024-11-16 08:51:41,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:41,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2024-11-16 08:51:41,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:41,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2024-11-16 08:51:41,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:41,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2024-11-16 08:51:41,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:41,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2024-11-16 08:51:41,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:41,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2024-11-16 08:51:41,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:41,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2024-11-16 08:51:41,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:41,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2024-11-16 08:51:41,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:41,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2024-11-16 08:51:41,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:41,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2024-11-16 08:51:41,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:41,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2024-11-16 08:51:41,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:41,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2024-11-16 08:51:41,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:41,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2024-11-16 08:51:41,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:41,336 INFO L134 CoverageAnalysis]: Checked inductivity of 3822 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 3819 trivial. 0 not checked. [2024-11-16 08:51:41,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:51:41,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624223335] [2024-11-16 08:51:41,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624223335] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 08:51:41,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1680848394] [2024-11-16 08:51:41,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:51:41,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 08:51:41,337 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:51:41,338 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 08:51:41,339 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-16 08:51:41,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:51:41,982 INFO L255 TraceCheckSpWp]: Trace formula consists of 1943 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-16 08:51:41,988 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 08:51:42,086 INFO L134 CoverageAnalysis]: Checked inductivity of 3822 backedges. 640 proven. 4 refuted. 0 times theorem prover too weak. 3178 trivial. 0 not checked. [2024-11-16 08:51:42,086 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 08:51:42,467 INFO L134 CoverageAnalysis]: Checked inductivity of 3822 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3818 trivial. 0 not checked. [2024-11-16 08:51:42,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1680848394] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 08:51:42,468 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 08:51:42,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 6, 5] total 15 [2024-11-16 08:51:42,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876171260] [2024-11-16 08:51:42,468 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 08:51:42,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-16 08:51:42,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:51:42,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-16 08:51:42,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2024-11-16 08:51:42,470 INFO L87 Difference]: Start difference. First operand 796 states and 1174 transitions. Second operand has 15 states, 15 states have (on average 7.866666666666666) internal successors, (118), 12 states have internal predecessors, (118), 9 states have call successors, (99), 7 states have call predecessors, (99), 7 states have return successors, (97), 7 states have call predecessors, (97), 9 states have call successors, (97) [2024-11-16 08:51:46,501 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-16 08:51:50,514 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-16 08:51:54,525 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []