./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-95.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/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-95.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 0889b3b245bd19b319539abf950f053b4b0a2377775ff80e767448a1983b0b1d --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 18:29:10,325 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 18:29:10,411 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 18:29:10,416 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 18:29:10,417 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 18:29:10,450 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 18:29:10,452 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 18:29:10,452 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 18:29:10,453 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 18:29:10,454 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 18:29:10,455 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 18:29:10,456 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 18:29:10,456 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 18:29:10,457 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 18:29:10,457 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 18:29:10,457 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 18:29:10,457 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 18:29:10,458 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 18:29:10,458 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 18:29:10,462 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 18:29:10,463 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 18:29:10,464 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 18:29:10,465 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 18:29:10,465 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 18:29:10,465 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 18:29:10,465 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 18:29:10,465 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 18:29:10,466 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 18:29:10,466 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 18:29:10,466 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 18:29:10,466 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 18:29:10,467 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 18:29:10,467 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 18:29:10,467 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 18:29:10,467 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 18:29:10,468 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 18:29:10,468 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 18:29:10,469 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 18:29:10,469 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 18:29:10,469 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 18:29:10,470 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 18:29:10,470 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 18:29:10,470 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0889b3b245bd19b319539abf950f053b4b0a2377775ff80e767448a1983b0b1d [2024-11-16 18:29:10,712 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 18:29:10,740 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 18:29:10,744 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 18:29:10,745 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 18:29:10,746 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 18:29:10,747 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-95.i [2024-11-16 18:29:12,203 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 18:29:12,396 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 18:29:12,397 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-95.i [2024-11-16 18:29:12,410 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1918344fe/52e95c62d3ca40108425c4d0329b8cd6/FLAG9e6e31eec [2024-11-16 18:29:12,769 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1918344fe/52e95c62d3ca40108425c4d0329b8cd6 [2024-11-16 18:29:12,772 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 18:29:12,773 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 18:29:12,774 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 18:29:12,774 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 18:29:12,779 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 18:29:12,782 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 06:29:12" (1/1) ... [2024-11-16 18:29:12,783 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52e8e908 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:29:12, skipping insertion in model container [2024-11-16 18:29:12,783 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 06:29:12" (1/1) ... [2024-11-16 18:29:12,817 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 18:29:12,970 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-95.i[917,930] [2024-11-16 18:29:13,041 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 18:29:13,052 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 18:29:13,062 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-95.i[917,930] [2024-11-16 18:29:13,093 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 18:29:13,119 INFO L204 MainTranslator]: Completed translation [2024-11-16 18:29:13,120 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:29:13 WrapperNode [2024-11-16 18:29:13,120 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 18:29:13,121 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 18:29:13,122 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 18:29:13,122 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 18:29:13,132 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:29:13" (1/1) ... [2024-11-16 18:29:13,170 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:29:13" (1/1) ... [2024-11-16 18:29:13,232 INFO L138 Inliner]: procedures = 29, calls = 154, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 497 [2024-11-16 18:29:13,233 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 18:29:13,233 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 18:29:13,234 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 18:29:13,234 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 18:29:13,244 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:29:13" (1/1) ... [2024-11-16 18:29:13,245 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:29:13" (1/1) ... [2024-11-16 18:29:13,251 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:29:13" (1/1) ... [2024-11-16 18:29:13,273 INFO L175 MemorySlicer]: Split 121 memory accesses to 7 slices as follows [2, 29, 15, 7, 7, 48, 13]. 40 percent of accesses are in the largest equivalence class. The 16 initializations are split as follows [2, 4, 2, 1, 1, 4, 2]. The 16 writes are split as follows [0, 4, 2, 1, 3, 4, 2]. [2024-11-16 18:29:13,274 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:29:13" (1/1) ... [2024-11-16 18:29:13,274 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:29:13" (1/1) ... [2024-11-16 18:29:13,291 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:29:13" (1/1) ... [2024-11-16 18:29:13,292 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:29:13" (1/1) ... [2024-11-16 18:29:13,295 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:29:13" (1/1) ... [2024-11-16 18:29:13,297 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:29:13" (1/1) ... [2024-11-16 18:29:13,309 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 18:29:13,310 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 18:29:13,310 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 18:29:13,310 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 18:29:13,311 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:29:13" (1/1) ... [2024-11-16 18:29:13,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 18:29:13,329 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 18:29:13,350 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 18:29:13,358 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 18:29:13,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 18:29:13,402 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-16 18:29:13,402 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-16 18:29:13,403 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-16 18:29:13,403 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-11-16 18:29:13,403 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-11-16 18:29:13,403 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2024-11-16 18:29:13,404 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2024-11-16 18:29:13,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-16 18:29:13,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-16 18:29:13,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-16 18:29:13,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-16 18:29:13,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-16 18:29:13,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-16 18:29:13,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-16 18:29:13,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-11-16 18:29:13,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-11-16 18:29:13,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-11-16 18:29:13,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-11-16 18:29:13,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-11-16 18:29:13,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2024-11-16 18:29:13,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#6 [2024-11-16 18:29:13,407 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-16 18:29:13,407 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-16 18:29:13,408 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-16 18:29:13,408 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-16 18:29:13,408 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-16 18:29:13,408 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-16 18:29:13,409 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-16 18:29:13,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-11-16 18:29:13,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-11-16 18:29:13,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2024-11-16 18:29:13,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2024-11-16 18:29:13,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2024-11-16 18:29:13,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#5 [2024-11-16 18:29:13,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#6 [2024-11-16 18:29:13,411 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-16 18:29:13,411 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-16 18:29:13,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 18:29:13,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-16 18:29:13,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-16 18:29:13,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-16 18:29:13,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-16 18:29:13,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-16 18:29:13,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-16 18:29:13,412 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 18:29:13,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 18:29:13,593 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 18:29:13,595 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 18:29:14,062 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L106: havoc property_#t~mem83#1;havoc property_#t~mem89#1;havoc property_#t~mem84#1;havoc property_#t~mem85#1;havoc property_#t~mem86#1;havoc property_#t~ite88#1;havoc property_#t~mem87#1;havoc property_#t~short90#1;havoc property_#t~mem91#1;havoc property_#t~mem92#1;havoc property_#t~mem93#1;havoc property_#t~bitwise94#1;havoc property_#t~ite108#1;havoc property_#t~mem107#1;havoc property_#t~mem99#1;havoc property_#t~mem95#1;havoc property_#t~ite98#1;havoc property_#t~mem96#1;havoc property_#t~mem97#1;havoc property_#t~ite105#1;havoc property_#t~mem100#1;havoc property_#t~mem101#1;havoc property_#t~ite104#1;havoc property_#t~mem102#1;havoc property_#t~mem103#1;havoc property_#t~mem106#1;havoc property_#t~short109#1;havoc property_#t~mem110#1;havoc property_#t~mem111#1;havoc property_#t~mem112#1;havoc property_#t~mem113#1;havoc property_#t~bitwise114#1;havoc property_#t~ite127#1;havoc property_#t~mem119#1;havoc property_#t~mem115#1;havoc property_#t~ite118#1;havoc property_#t~mem116#1;havoc property_#t~mem117#1;havoc property_#t~mem120#1;havoc property_#t~mem121#1;havoc property_#t~ite126#1;havoc property_#t~mem124#1;havoc property_#t~mem122#1;havoc property_#t~mem123#1;havoc property_#t~mem125#1;havoc property_#t~short128#1;havoc property_#t~mem130#1;havoc property_#t~mem129#1;havoc property_#t~short131#1; [2024-11-16 18:29:14,115 INFO L? ?]: Removed 125 outVars from TransFormulas that were not future-live. [2024-11-16 18:29:14,115 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 18:29:14,138 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 18:29:14,140 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 18:29:14,140 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 06:29:14 BoogieIcfgContainer [2024-11-16 18:29:14,140 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 18:29:14,142 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 18:29:14,144 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 18:29:14,147 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 18:29:14,147 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 06:29:12" (1/3) ... [2024-11-16 18:29:14,148 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a7fa8ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 06:29:14, skipping insertion in model container [2024-11-16 18:29:14,148 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:29:13" (2/3) ... [2024-11-16 18:29:14,149 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a7fa8ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 06:29:14, skipping insertion in model container [2024-11-16 18:29:14,150 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 06:29:14" (3/3) ... [2024-11-16 18:29:14,151 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-ap_file-95.i [2024-11-16 18:29:14,169 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 18:29:14,170 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 18:29:14,249 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 18:29:14,258 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;@318d0dcf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 18:29:14,258 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 18:29:14,263 INFO L276 IsEmpty]: Start isEmpty. Operand has 117 states, 98 states have (on average 1.4081632653061225) internal successors, (138), 99 states have internal predecessors, (138), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-16 18:29:14,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-16 18:29:14,279 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:29:14,280 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:29:14,281 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:29:14,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:29:14,287 INFO L85 PathProgramCache]: Analyzing trace with hash 1673024267, now seen corresponding path program 1 times [2024-11-16 18:29:14,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:29:14,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687678772] [2024-11-16 18:29:14,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:29:14,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:29:14,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:29:14,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-16 18:29:14,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:29:14,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:29:14,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:29:14,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-16 18:29:14,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:29:14,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 18:29:14,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:29:14,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 18:29:14,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:29:14,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 18:29:14,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:29:14,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 18:29:14,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:29:14,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 18:29:14,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:29:14,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-16 18:29:14,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:29:14,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 18:29:14,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:29:14,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 18:29:14,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:29:14,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-16 18:29:14,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:29:14,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 18:29:14,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:29:14,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 18:29:14,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:29:14,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 18:29:14,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:29:14,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 18:29:14,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:29:14,761 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-16 18:29:14,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:29:14,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687678772] [2024-11-16 18:29:14,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687678772] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:29:14,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:29:14,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 18:29:14,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856367801] [2024-11-16 18:29:14,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:29:14,773 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 18:29:14,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:29:14,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 18:29:14,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 18:29:14,804 INFO L87 Difference]: Start difference. First operand has 117 states, 98 states have (on average 1.4081632653061225) internal successors, (138), 99 states have internal predecessors, (138), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-16 18:29:14,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:29:14,847 INFO L93 Difference]: Finished difference Result 226 states and 349 transitions. [2024-11-16 18:29:14,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 18:29:14,851 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), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 134 [2024-11-16 18:29:14,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:29:14,858 INFO L225 Difference]: With dead ends: 226 [2024-11-16 18:29:14,858 INFO L226 Difference]: Without dead ends: 112 [2024-11-16 18:29:14,862 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 50 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 18:29:14,866 INFO L432 NwaCegarLoop]: 154 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 18:29:14,868 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 154 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 18:29:14,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2024-11-16 18:29:14,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2024-11-16 18:29:14,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 94 states have (on average 1.3404255319148937) internal successors, (126), 94 states have internal predecessors, (126), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-16 18:29:14,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 158 transitions. [2024-11-16 18:29:14,927 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 158 transitions. Word has length 134 [2024-11-16 18:29:14,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:29:14,928 INFO L471 AbstractCegarLoop]: Abstraction has 112 states and 158 transitions. [2024-11-16 18:29:14,928 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), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-16 18:29:14,928 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 158 transitions. [2024-11-16 18:29:14,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-16 18:29:14,931 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:29:14,932 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:29:14,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 18:29:14,932 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:29:14,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:29:14,933 INFO L85 PathProgramCache]: Analyzing trace with hash 746016825, now seen corresponding path program 1 times [2024-11-16 18:29:14,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:29:14,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946245404] [2024-11-16 18:29:14,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:29:14,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:29:15,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:29:15,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-16 18:29:15,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:29:15,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:29:15,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:29:15,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-16 18:29:15,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:29:15,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 18:29:15,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:29:15,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 18:29:15,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:29:15,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 18:29:15,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:29:15,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 18:29:15,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:29:15,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 18:29:15,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:29:15,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-16 18:29:15,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:29:15,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 18:29:15,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:29:15,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 18:29:15,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:29:15,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-16 18:29:15,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:29:15,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 18:29:15,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:29:15,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 18:29:15,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:29:15,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 18:29:15,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:29:15,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 18:29:15,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:29:15,378 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-16 18:29:15,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:29:15,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946245404] [2024-11-16 18:29:15,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946245404] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:29:15,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:29:15,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 18:29:15,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447963996] [2024-11-16 18:29:15,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:29:15,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 18:29:15,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:29:15,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 18:29:15,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 18:29:15,382 INFO L87 Difference]: Start difference. First operand 112 states and 158 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-16 18:29:15,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:29:15,440 INFO L93 Difference]: Finished difference Result 224 states and 317 transitions. [2024-11-16 18:29:15,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 18:29:15,441 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 134 [2024-11-16 18:29:15,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:29:15,444 INFO L225 Difference]: With dead ends: 224 [2024-11-16 18:29:15,444 INFO L226 Difference]: Without dead ends: 115 [2024-11-16 18:29:15,445 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 18:29:15,447 INFO L432 NwaCegarLoop]: 151 mSDtfsCounter, 1 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 18:29:15,447 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 444 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 18:29:15,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-11-16 18:29:15,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 114. [2024-11-16 18:29:15,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 96 states have (on average 1.3333333333333333) internal successors, (128), 96 states have internal predecessors, (128), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-16 18:29:15,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 160 transitions. [2024-11-16 18:29:15,462 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 160 transitions. Word has length 134 [2024-11-16 18:29:15,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:29:15,463 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 160 transitions. [2024-11-16 18:29:15,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-16 18:29:15,464 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 160 transitions. [2024-11-16 18:29:15,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-16 18:29:15,466 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:29:15,466 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:29:15,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 18:29:15,467 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:29:15,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:29:15,467 INFO L85 PathProgramCache]: Analyzing trace with hash 774645976, now seen corresponding path program 1 times [2024-11-16 18:29:15,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:29:15,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716832199] [2024-11-16 18:29:15,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:29:15,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:29:15,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:29:15,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-16 18:29:15,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:29:15,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:29:15,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:29:15,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-16 18:29:15,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:29:15,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 18:29:15,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:29:15,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 18:29:15,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:29:15,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 18:29:15,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:29:15,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 18:29:15,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:29:15,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 18:29:15,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:29:15,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-16 18:29:15,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:29:15,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 18:29:15,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:29:15,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 18:29:15,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:29:15,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-16 18:29:15,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:29:15,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 18:29:15,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:29:15,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 18:29:15,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:29:15,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 18:29:15,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:29:15,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 18:29:15,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:29:15,871 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-16 18:29:15,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:29:15,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716832199] [2024-11-16 18:29:15,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716832199] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:29:15,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:29:15,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 18:29:15,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660315148] [2024-11-16 18:29:15,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:29:15,875 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 18:29:15,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:29:15,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 18:29:15,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 18:29:15,877 INFO L87 Difference]: Start difference. First operand 114 states and 160 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-16 18:29:15,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:29:15,955 INFO L93 Difference]: Finished difference Result 227 states and 319 transitions. [2024-11-16 18:29:15,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 18:29:15,958 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 134 [2024-11-16 18:29:15,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:29:15,959 INFO L225 Difference]: With dead ends: 227 [2024-11-16 18:29:15,959 INFO L226 Difference]: Without dead ends: 116 [2024-11-16 18:29:15,960 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 34 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 18:29:15,961 INFO L432 NwaCegarLoop]: 149 mSDtfsCounter, 67 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 18:29:15,965 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 373 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 18:29:15,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2024-11-16 18:29:15,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 114. [2024-11-16 18:29:15,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 96 states have (on average 1.3229166666666667) internal successors, (127), 96 states have internal predecessors, (127), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-16 18:29:15,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 159 transitions. [2024-11-16 18:29:15,979 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 159 transitions. Word has length 134 [2024-11-16 18:29:15,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:29:15,982 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 159 transitions. [2024-11-16 18:29:15,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-16 18:29:15,983 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 159 transitions. [2024-11-16 18:29:15,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-16 18:29:15,984 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:29:15,984 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:29:15,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 18:29:15,985 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:29:15,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:29:15,985 INFO L85 PathProgramCache]: Analyzing trace with hash 2143827194, now seen corresponding path program 1 times [2024-11-16 18:29:15,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:29:15,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504835378] [2024-11-16 18:29:15,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:29:15,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:29:16,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:29:16,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-16 18:29:16,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:29:16,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:29:16,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:29:16,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-16 18:29:16,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:29:16,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 18:29:16,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:29:16,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 18:29:16,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:29:16,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 18:29:16,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:29:16,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 18:29:16,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:29:16,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 18:29:16,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:29:16,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-16 18:29:16,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:29:16,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 18:29:16,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:29:16,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 18:29:16,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:29:16,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-16 18:29:16,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:29:16,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 18:29:16,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:29:17,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 18:29:17,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:29:17,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 18:29:17,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:29:17,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 18:29:17,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:29:17,030 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 36 proven. 9 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2024-11-16 18:29:17,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:29:17,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504835378] [2024-11-16 18:29:17,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504835378] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 18:29:17,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1195493551] [2024-11-16 18:29:17,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:29:17,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 18:29:17,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 18:29:17,033 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 18:29:17,035 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 18:29:17,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:29:17,545 INFO L255 TraceCheckSpWp]: Trace formula consists of 535 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-16 18:29:17,559 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 18:29:18,174 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-16 18:29:18,368 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-16 18:29:18,527 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-16 18:29:18,552 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 36 proven. 156 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-16 18:29:18,552 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 18:29:18,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1195493551] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 18:29:18,780 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-16 18:29:18,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 18 [2024-11-16 18:29:18,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521091897] [2024-11-16 18:29:18,780 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-16 18:29:18,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-16 18:29:18,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:29:18,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-16 18:29:18,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=420, Unknown=0, NotChecked=0, Total=506 [2024-11-16 18:29:18,783 INFO L87 Difference]: Start difference. First operand 114 states and 159 transitions. Second operand has 18 states, 16 states have (on average 6.75) internal successors, (108), 16 states have internal predecessors, (108), 6 states have call successors, (32), 3 states have call predecessors, (32), 5 states have return successors, (32), 6 states have call predecessors, (32), 6 states have call successors, (32) [2024-11-16 18:29:19,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:29:19,233 INFO L93 Difference]: Finished difference Result 235 states and 325 transitions. [2024-11-16 18:29:19,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 18:29:19,234 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 6.75) internal successors, (108), 16 states have internal predecessors, (108), 6 states have call successors, (32), 3 states have call predecessors, (32), 5 states have return successors, (32), 6 states have call predecessors, (32), 6 states have call successors, (32) Word has length 136 [2024-11-16 18:29:19,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:29:19,251 INFO L225 Difference]: With dead ends: 235 [2024-11-16 18:29:19,251 INFO L226 Difference]: Without dead ends: 124 [2024-11-16 18:29:19,252 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=179, Invalid=691, Unknown=0, NotChecked=0, Total=870 [2024-11-16 18:29:19,257 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 139 mSDsluCounter, 768 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 894 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 18:29:19,257 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 894 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 367 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 18:29:19,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2024-11-16 18:29:19,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 120. [2024-11-16 18:29:19,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 101 states have (on average 1.306930693069307) internal successors, (132), 101 states have internal predecessors, (132), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-16 18:29:19,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 164 transitions. [2024-11-16 18:29:19,276 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 164 transitions. Word has length 136 [2024-11-16 18:29:19,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:29:19,277 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 164 transitions. [2024-11-16 18:29:19,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 6.75) internal successors, (108), 16 states have internal predecessors, (108), 6 states have call successors, (32), 3 states have call predecessors, (32), 5 states have return successors, (32), 6 states have call predecessors, (32), 6 states have call successors, (32) [2024-11-16 18:29:19,278 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 164 transitions. [2024-11-16 18:29:19,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-16 18:29:19,280 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:29:19,280 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:29:19,301 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 18:29:19,484 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 18:29:19,485 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:29:19,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:29:19,485 INFO L85 PathProgramCache]: Analyzing trace with hash 495323371, now seen corresponding path program 1 times [2024-11-16 18:29:19,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:29:19,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223536640] [2024-11-16 18:29:19,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:29:19,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:29:19,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:29:44,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-16 18:29:44,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:29:44,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:29:44,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:29:44,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-16 18:29:44,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:29:44,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 18:29:44,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:29:44,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 18:29:44,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:29:44,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 18:29:44,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:29:44,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 18:29:44,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:29:44,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 18:29:44,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:29:44,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-16 18:29:44,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:29:44,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 18:29:44,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:29:44,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 18:29:44,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:29:44,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-16 18:29:44,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:29:44,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 18:29:44,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:29:44,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 18:29:44,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:29:44,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 18:29:44,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:29:44,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 18:29:44,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:29:44,531 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 36 proven. 9 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2024-11-16 18:29:44,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:29:44,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223536640] [2024-11-16 18:29:44,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223536640] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 18:29:44,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1701937974] [2024-11-16 18:29:44,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:29:44,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 18:29:44,533 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 18:29:44,535 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 18:29:44,537 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 18:29:44,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:29:44,795 INFO L255 TraceCheckSpWp]: Trace formula consists of 538 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-16 18:29:44,808 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 18:29:45,279 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-16 18:29:46,172 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-16 18:29:46,230 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-16 18:29:46,262 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 11 proven. 225 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2024-11-16 18:29:46,263 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 18:29:46,924 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 62 [2024-11-16 18:29:47,464 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 12 proven. 33 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2024-11-16 18:29:47,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1701937974] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 18:29:47,465 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 18:29:47,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 10, 12] total 33 [2024-11-16 18:29:47,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362391111] [2024-11-16 18:29:47,465 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 18:29:47,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-16 18:29:47,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:29:47,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-16 18:29:47,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=926, Unknown=6, NotChecked=0, Total=1056 [2024-11-16 18:29:47,469 INFO L87 Difference]: Start difference. First operand 120 states and 164 transitions. Second operand has 33 states, 30 states have (on average 5.166666666666667) internal successors, (155), 31 states have internal predecessors, (155), 10 states have call successors, (48), 4 states have call predecessors, (48), 6 states have return successors, (48), 8 states have call predecessors, (48), 10 states have call successors, (48) [2024-11-16 18:30:41,102 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-16 18:30:45,108 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 []