./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-90.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-a_file-90.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 b03e5164bce3a85426688c5c2210a00154d48f59702228593c435153664697b2 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 18:18:16,599 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 18:18:16,674 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 18:18:16,681 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 18:18:16,682 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 18:18:16,714 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 18:18:16,715 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 18:18:16,715 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 18:18:16,718 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 18:18:16,718 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 18:18:16,719 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 18:18:16,719 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 18:18:16,720 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 18:18:16,721 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 18:18:16,723 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 18:18:16,724 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 18:18:16,724 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 18:18:16,724 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 18:18:16,725 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 18:18:16,725 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 18:18:16,729 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 18:18:16,729 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 18:18:16,730 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 18:18:16,730 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 18:18:16,730 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 18:18:16,730 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 18:18:16,731 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 18:18:16,731 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 18:18:16,731 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 18:18:16,731 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 18:18:16,731 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 18:18:16,732 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 18:18:16,732 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 18:18:16,732 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 18:18:16,732 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 18:18:16,733 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 18:18:16,733 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 18:18:16,741 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 18:18:16,742 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 18:18:16,742 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 18:18:16,742 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 18:18:16,744 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 18:18:16,744 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b03e5164bce3a85426688c5c2210a00154d48f59702228593c435153664697b2 [2024-11-16 18:18:17,035 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 18:18:17,058 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 18:18:17,062 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 18:18:17,064 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 18:18:17,064 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 18:18:17,066 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-90.i [2024-11-16 18:18:18,582 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 18:18:18,839 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 18:18:18,839 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-90.i [2024-11-16 18:18:18,854 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5bc1a264/e25dd2d28e4349218c65fb47ec1487a4/FLAG3e815c2c3 [2024-11-16 18:18:18,873 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5bc1a264/e25dd2d28e4349218c65fb47ec1487a4 [2024-11-16 18:18:18,878 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 18:18:18,880 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 18:18:18,883 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 18:18:18,884 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 18:18:18,890 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 18:18:18,891 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 06:18:18" (1/1) ... [2024-11-16 18:18:18,892 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e8a4257 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:18:18, skipping insertion in model container [2024-11-16 18:18:18,892 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 06:18:18" (1/1) ... [2024-11-16 18:18:18,923 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 18:18:19,118 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-a_file-90.i[916,929] [2024-11-16 18:18:19,211 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 18:18:19,223 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 18:18:19,236 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-a_file-90.i[916,929] [2024-11-16 18:18:19,275 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 18:18:19,295 INFO L204 MainTranslator]: Completed translation [2024-11-16 18:18:19,295 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:18:19 WrapperNode [2024-11-16 18:18:19,296 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 18:18:19,297 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 18:18:19,297 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 18:18:19,297 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 18:18:19,306 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:18:19" (1/1) ... [2024-11-16 18:18:19,324 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:18:19" (1/1) ... [2024-11-16 18:18:19,360 INFO L138 Inliner]: procedures = 26, calls = 165, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 468 [2024-11-16 18:18:19,360 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 18:18:19,365 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 18:18:19,365 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 18:18:19,365 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 18:18:19,376 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:18:19" (1/1) ... [2024-11-16 18:18:19,376 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:18:19" (1/1) ... [2024-11-16 18:18:19,382 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:18:19" (1/1) ... [2024-11-16 18:18:19,416 INFO L175 MemorySlicer]: Split 130 memory accesses to 5 slices as follows [2, 34, 4, 55, 35]. 42 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 5, 1, 6, 3]. The 19 writes are split as follows [0, 6, 1, 6, 6]. [2024-11-16 18:18:19,416 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:18:19" (1/1) ... [2024-11-16 18:18:19,416 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:18:19" (1/1) ... [2024-11-16 18:18:19,442 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:18:19" (1/1) ... [2024-11-16 18:18:19,447 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:18:19" (1/1) ... [2024-11-16 18:18:19,449 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:18:19" (1/1) ... [2024-11-16 18:18:19,455 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:18:19" (1/1) ... [2024-11-16 18:18:19,465 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 18:18:19,466 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 18:18:19,467 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 18:18:19,467 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 18:18:19,468 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:18:19" (1/1) ... [2024-11-16 18:18:19,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 18:18:19,487 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 18:18:19,508 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 18:18:19,511 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 18:18:19,564 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 18:18:19,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-16 18:18:19,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-16 18:18:19,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-16 18:18:19,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-16 18:18:19,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-16 18:18:19,566 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-16 18:18:19,568 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-16 18:18:19,568 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-16 18:18:19,568 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-16 18:18:19,568 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-16 18:18:19,568 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-16 18:18:19,568 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-16 18:18:19,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 18:18:19,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-16 18:18:19,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-16 18:18:19,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-16 18:18:19,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-16 18:18:19,569 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 18:18:19,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 18:18:19,716 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 18:18:19,718 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 18:18:20,326 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L108: havoc property_#t~mem73#1;havoc property_#t~ite82#1;havoc property_#t~mem81#1;havoc property_#t~mem74#1;havoc property_#t~mem75#1;havoc property_#t~mem76#1;havoc property_#t~ite80#1;havoc property_#t~mem77#1;havoc property_#t~mem78#1;havoc property_#t~mem79#1;havoc property_#t~mem83#1;havoc property_#t~mem84#1;havoc property_#t~ite87#1;havoc property_#t~mem85#1;havoc property_#t~mem86#1;havoc property_#t~ite100#1;havoc property_#t~mem88#1;havoc property_#t~mem89#1;havoc property_#t~ite97#1;havoc property_#t~ite94#1;havoc property_#t~mem91#1;havoc property_#t~mem90#1;havoc property_#t~mem93#1;havoc property_#t~mem92#1;havoc property_#t~mem96#1;havoc property_#t~mem95#1;havoc property_#t~mem99#1;havoc property_#t~mem98#1;havoc property_#t~short101#1;havoc property_#t~mem102#1;havoc property_#t~ite111#1;havoc property_#t~mem106#1;havoc property_#t~mem104#1;havoc property_#t~mem103#1;havoc property_#t~short105#1;havoc property_#t~mem110#1;havoc property_#t~mem107#1;havoc property_#t~mem108#1;havoc property_#t~short109#1;havoc property_#t~short112#1;havoc property_#t~mem118#1;havoc property_#t~mem114#1;havoc property_#t~mem113#1;havoc property_#t~ite117#1;havoc property_#t~mem115#1;havoc property_#t~mem116#1;havoc property_#t~short119#1;havoc property_#t~mem120#1;havoc property_#t~mem121#1;havoc property_#t~ite127#1;havoc property_#t~mem122#1;havoc property_#t~mem123#1;havoc property_#t~ite126#1;havoc property_#t~mem125#1;havoc property_#t~mem124#1;havoc property_#t~short128#1; [2024-11-16 18:18:20,369 INFO L? ?]: Removed 112 outVars from TransFormulas that were not future-live. [2024-11-16 18:18:20,370 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 18:18:20,390 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 18:18:20,391 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 18:18:20,391 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 06:18:20 BoogieIcfgContainer [2024-11-16 18:18:20,391 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 18:18:20,396 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 18:18:20,397 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 18:18:20,400 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 18:18:20,400 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 06:18:18" (1/3) ... [2024-11-16 18:18:20,401 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3521bc6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 06:18:20, skipping insertion in model container [2024-11-16 18:18:20,401 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:18:19" (2/3) ... [2024-11-16 18:18:20,402 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3521bc6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 06:18:20, skipping insertion in model container [2024-11-16 18:18:20,402 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 06:18:20" (3/3) ... [2024-11-16 18:18:20,405 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-90.i [2024-11-16 18:18:20,422 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 18:18:20,422 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 18:18:20,482 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 18:18:20,488 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;@27c00917, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 18:18:20,488 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 18:18:20,493 INFO L276 IsEmpty]: Start isEmpty. Operand has 114 states, 91 states have (on average 1.3626373626373627) internal successors, (124), 92 states have internal predecessors, (124), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-16 18:18:20,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-16 18:18:20,505 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:18:20,506 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:18:20,507 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:18:20,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:18:20,511 INFO L85 PathProgramCache]: Analyzing trace with hash 544400996, now seen corresponding path program 1 times [2024-11-16 18:18:20,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:18:20,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26767527] [2024-11-16 18:18:20,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:18:20,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:18:20,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:20,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:18:20,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:20,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:18:20,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:20,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:18:20,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:20,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:18:20,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:20,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:18:20,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:20,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:18:20,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:20,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:18:20,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:20,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:18:20,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:20,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:18:20,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:20,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:18:20,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:20,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:18:20,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:20,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:18:20,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:20,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:18:20,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:20,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:18:20,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:20,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 18:18:20,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:20,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-16 18:18:20,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:20,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-16 18:18:20,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:20,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-16 18:18:20,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:20,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-16 18:18:20,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:20,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-16 18:18:20,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:20,966 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-16 18:18:20,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:18:20,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26767527] [2024-11-16 18:18:20,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26767527] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:18:20,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:18:20,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 18:18:20,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661489690] [2024-11-16 18:18:20,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:18:20,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 18:18:20,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:18:21,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 18:18:21,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 18:18:21,010 INFO L87 Difference]: Start difference. First operand has 114 states, 91 states have (on average 1.3626373626373627) internal successors, (124), 92 states have internal predecessors, (124), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-16 18:18:21,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:18:21,056 INFO L93 Difference]: Finished difference Result 220 states and 341 transitions. [2024-11-16 18:18:21,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 18:18:21,062 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 155 [2024-11-16 18:18:21,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:18:21,072 INFO L225 Difference]: With dead ends: 220 [2024-11-16 18:18:21,073 INFO L226 Difference]: Without dead ends: 109 [2024-11-16 18:18:21,077 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 18:18:21,083 INFO L432 NwaCegarLoop]: 156 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, 156 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 18:18:21,084 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 18:18:21,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-11-16 18:18:21,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2024-11-16 18:18:21,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 87 states have (on average 1.3333333333333333) internal successors, (116), 87 states have internal predecessors, (116), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-16 18:18:21,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 156 transitions. [2024-11-16 18:18:21,142 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 156 transitions. Word has length 155 [2024-11-16 18:18:21,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:18:21,143 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 156 transitions. [2024-11-16 18:18:21,143 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-16 18:18:21,143 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 156 transitions. [2024-11-16 18:18:21,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-16 18:18:21,149 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:18:21,149 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:18:21,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 18:18:21,150 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:18:21,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:18:21,150 INFO L85 PathProgramCache]: Analyzing trace with hash -769339400, now seen corresponding path program 1 times [2024-11-16 18:18:21,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:18:21,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520767168] [2024-11-16 18:18:21,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:18:21,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:18:21,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:21,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:18:21,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:21,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:18:21,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:21,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:18:21,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:21,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:18:21,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:21,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:18:21,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:21,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:18:21,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:21,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:18:21,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:21,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:18:21,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:21,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:18:21,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:21,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:18:21,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:21,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:18:21,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:21,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:18:21,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:21,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:18:21,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:21,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:18:21,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:21,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 18:18:21,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:21,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-16 18:18:21,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:21,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-16 18:18:21,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:21,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-16 18:18:21,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:21,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-16 18:18:21,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:21,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-16 18:18:21,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:21,727 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-16 18:18:21,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:18:21,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520767168] [2024-11-16 18:18:21,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520767168] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:18:21,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:18:21,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 18:18:21,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156994773] [2024-11-16 18:18:21,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:18:21,730 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 18:18:21,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:18:21,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 18:18:21,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 18:18:21,731 INFO L87 Difference]: Start difference. First operand 109 states and 156 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-16 18:18:21,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:18:21,798 INFO L93 Difference]: Finished difference Result 217 states and 312 transitions. [2024-11-16 18:18:21,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 18:18:21,799 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 155 [2024-11-16 18:18:21,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:18:21,804 INFO L225 Difference]: With dead ends: 217 [2024-11-16 18:18:21,804 INFO L226 Difference]: Without dead ends: 111 [2024-11-16 18:18:21,805 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 43 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 18:18:21,806 INFO L432 NwaCegarLoop]: 154 mSDtfsCounter, 0 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 18:18:21,809 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 451 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 18:18:21,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-11-16 18:18:21,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2024-11-16 18:18:21,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 89 states have (on average 1.3258426966292134) internal successors, (118), 89 states have internal predecessors, (118), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-16 18:18:21,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 158 transitions. [2024-11-16 18:18:21,829 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 158 transitions. Word has length 155 [2024-11-16 18:18:21,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:18:21,833 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 158 transitions. [2024-11-16 18:18:21,833 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-16 18:18:21,834 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 158 transitions. [2024-11-16 18:18:21,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-16 18:18:21,838 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:18:21,839 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:18:21,839 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 18:18:21,839 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:18:21,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:18:21,840 INFO L85 PathProgramCache]: Analyzing trace with hash 790837146, now seen corresponding path program 1 times [2024-11-16 18:18:21,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:18:21,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135542735] [2024-11-16 18:18:21,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:18:21,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:18:21,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:22,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:18:22,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:22,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:18:22,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:22,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:18:22,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:22,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:18:22,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:22,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:18:22,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:22,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:18:22,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:22,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:18:22,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:22,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:18:22,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:22,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:18:22,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:22,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:18:22,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:22,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:18:22,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:22,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:18:22,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:22,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:18:22,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:22,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:18:22,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:22,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 18:18:22,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:22,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-16 18:18:22,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:22,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-16 18:18:22,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:22,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-16 18:18:22,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:22,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-16 18:18:22,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:22,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-16 18:18:22,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:22,653 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-16 18:18:22,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:18:22,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135542735] [2024-11-16 18:18:22,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135542735] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:18:22,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:18:22,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 18:18:22,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940700693] [2024-11-16 18:18:22,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:18:22,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 18:18:22,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:18:22,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 18:18:22,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 18:18:22,658 INFO L87 Difference]: Start difference. First operand 111 states and 158 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-16 18:18:23,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:18:23,159 INFO L93 Difference]: Finished difference Result 317 states and 453 transitions. [2024-11-16 18:18:23,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 18:18:23,160 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 157 [2024-11-16 18:18:23,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:18:23,163 INFO L225 Difference]: With dead ends: 317 [2024-11-16 18:18:23,163 INFO L226 Difference]: Without dead ends: 209 [2024-11-16 18:18:23,167 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-16 18:18:23,168 INFO L432 NwaCegarLoop]: 130 mSDtfsCounter, 374 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 374 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 18:18:23,169 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [374 Valid, 433 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 18:18:23,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2024-11-16 18:18:23,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 113. [2024-11-16 18:18:23,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 91 states have (on average 1.3186813186813187) internal successors, (120), 91 states have internal predecessors, (120), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-16 18:18:23,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 160 transitions. [2024-11-16 18:18:23,200 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 160 transitions. Word has length 157 [2024-11-16 18:18:23,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:18:23,201 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 160 transitions. [2024-11-16 18:18:23,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-16 18:18:23,201 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 160 transitions. [2024-11-16 18:18:23,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-16 18:18:23,206 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:18:23,207 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:18:23,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 18:18:23,207 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:18:23,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:18:23,207 INFO L85 PathProgramCache]: Analyzing trace with hash -304802340, now seen corresponding path program 1 times [2024-11-16 18:18:23,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:18:23,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215737687] [2024-11-16 18:18:23,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:18:23,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:18:23,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:24,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:18:24,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:24,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:18:24,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:24,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:18:24,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:24,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:18:24,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:24,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:18:24,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:24,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:18:24,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:24,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:18:24,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:24,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:18:24,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:24,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:18:24,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:24,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:18:24,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:24,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:18:24,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:24,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:18:24,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:24,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:18:24,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:24,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:18:24,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:24,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 18:18:24,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:24,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-16 18:18:24,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:24,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-16 18:18:24,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:24,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-16 18:18:24,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:24,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-16 18:18:24,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:24,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-16 18:18:24,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:24,464 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-16 18:18:24,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:18:24,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215737687] [2024-11-16 18:18:24,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215737687] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:18:24,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:18:24,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 18:18:24,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924228415] [2024-11-16 18:18:24,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:18:24,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 18:18:24,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:18:24,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 18:18:24,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-16 18:18:24,467 INFO L87 Difference]: Start difference. First operand 113 states and 160 transitions. Second operand has 8 states, 7 states have (on average 8.714285714285714) internal successors, (61), 8 states have internal predecessors, (61), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-16 18:18:24,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:18:24,838 INFO L93 Difference]: Finished difference Result 230 states and 324 transitions. [2024-11-16 18:18:24,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 18:18:24,840 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.714285714285714) internal successors, (61), 8 states have internal predecessors, (61), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 158 [2024-11-16 18:18:24,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:18:24,842 INFO L225 Difference]: With dead ends: 230 [2024-11-16 18:18:24,842 INFO L226 Difference]: Without dead ends: 120 [2024-11-16 18:18:24,842 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-11-16 18:18:24,847 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 120 mSDsluCounter, 618 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 759 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 18:18:24,848 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 759 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 18:18:24,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-11-16 18:18:24,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2024-11-16 18:18:24,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 97 states have (on average 1.2989690721649485) internal successors, (126), 97 states have internal predecessors, (126), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-16 18:18:24,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 166 transitions. [2024-11-16 18:18:24,877 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 166 transitions. Word has length 158 [2024-11-16 18:18:24,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:18:24,878 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 166 transitions. [2024-11-16 18:18:24,879 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.714285714285714) internal successors, (61), 8 states have internal predecessors, (61), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-16 18:18:24,879 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 166 transitions. [2024-11-16 18:18:24,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-16 18:18:24,881 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:18:24,881 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:18:24,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 18:18:24,882 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:18:24,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:18:24,883 INFO L85 PathProgramCache]: Analyzing trace with hash 276677052, now seen corresponding path program 1 times [2024-11-16 18:18:24,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:18:24,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654794682] [2024-11-16 18:18:24,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:18:24,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:18:24,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:26,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:18:26,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:26,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:18:26,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:26,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:18:26,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:26,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:18:26,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:26,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:18:26,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:26,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:18:26,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:26,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:18:26,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:26,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:18:26,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:26,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:18:26,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:26,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:18:26,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:26,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:18:26,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:26,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:18:26,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:26,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:18:26,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:26,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:18:26,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:26,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 18:18:26,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:26,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-16 18:18:26,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:26,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-16 18:18:26,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:26,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-16 18:18:26,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:26,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-16 18:18:26,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:26,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-16 18:18:26,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:26,155 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 3 proven. 54 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-11-16 18:18:26,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:18:26,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654794682] [2024-11-16 18:18:26,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654794682] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 18:18:26,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [871858174] [2024-11-16 18:18:26,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:18:26,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 18:18:26,159 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 18:18:26,162 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 18:18:26,163 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 18:18:26,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:26,367 INFO L255 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-16 18:18:26,391 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 18:18:26,460 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 18:18:26,530 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 29 treesize of output 13 [2024-11-16 18:18:26,754 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 18:18:26,754 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 36 [2024-11-16 18:18:26,805 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 18:18:26,805 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 54 treesize of output 20 [2024-11-16 18:18:26,848 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 193 proven. 6 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-11-16 18:18:26,848 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 18:18:27,410 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 102 proven. 9 refuted. 0 times theorem prover too weak. 649 trivial. 0 not checked. [2024-11-16 18:18:27,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [871858174] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 18:18:27,411 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 18:18:27,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 12, 12] total 27 [2024-11-16 18:18:27,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562028482] [2024-11-16 18:18:27,411 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 18:18:27,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-16 18:18:27,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:18:27,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-16 18:18:27,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=599, Unknown=0, NotChecked=0, Total=702 [2024-11-16 18:18:27,414 INFO L87 Difference]: Start difference. First operand 120 states and 166 transitions. Second operand has 27 states, 22 states have (on average 5.7727272727272725) internal successors, (127), 26 states have internal predecessors, (127), 10 states have call successors, (43), 3 states have call predecessors, (43), 6 states have return successors, (43), 6 states have call predecessors, (43), 10 states have call successors, (43) [2024-11-16 18:18:30,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:18:30,297 INFO L93 Difference]: Finished difference Result 384 states and 512 transitions. [2024-11-16 18:18:30,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2024-11-16 18:18:30,298 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 22 states have (on average 5.7727272727272725) internal successors, (127), 26 states have internal predecessors, (127), 10 states have call successors, (43), 3 states have call predecessors, (43), 6 states have return successors, (43), 6 states have call predecessors, (43), 10 states have call successors, (43) Word has length 159 [2024-11-16 18:18:30,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:18:30,300 INFO L225 Difference]: With dead ends: 384 [2024-11-16 18:18:30,301 INFO L226 Difference]: Without dead ends: 267 [2024-11-16 18:18:30,304 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 423 GetRequests, 344 SyntacticMatches, 1 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1636 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1128, Invalid=5192, Unknown=0, NotChecked=0, Total=6320 [2024-11-16 18:18:30,305 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 1657 mSDsluCounter, 1097 mSDsCounter, 0 mSdLazyCounter, 983 mSolverCounterSat, 683 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1657 SdHoareTripleChecker+Valid, 1211 SdHoareTripleChecker+Invalid, 1666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 683 IncrementalHoareTripleChecker+Valid, 983 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-16 18:18:30,305 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1657 Valid, 1211 Invalid, 1666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [683 Valid, 983 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-16 18:18:30,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2024-11-16 18:18:30,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 137. [2024-11-16 18:18:30,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 111 states have (on average 1.2612612612612613) internal successors, (140), 111 states have internal predecessors, (140), 20 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-16 18:18:30,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 180 transitions. [2024-11-16 18:18:30,327 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 180 transitions. Word has length 159 [2024-11-16 18:18:30,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:18:30,328 INFO L471 AbstractCegarLoop]: Abstraction has 137 states and 180 transitions. [2024-11-16 18:18:30,328 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 22 states have (on average 5.7727272727272725) internal successors, (127), 26 states have internal predecessors, (127), 10 states have call successors, (43), 3 states have call predecessors, (43), 6 states have return successors, (43), 6 states have call predecessors, (43), 10 states have call successors, (43) [2024-11-16 18:18:30,328 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 180 transitions. [2024-11-16 18:18:30,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-16 18:18:30,330 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:18:30,330 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:18:30,349 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 18:18:30,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 18:18:30,531 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:18:30,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:18:30,531 INFO L85 PathProgramCache]: Analyzing trace with hash 1927980682, now seen corresponding path program 1 times [2024-11-16 18:18:30,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:18:30,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009559202] [2024-11-16 18:18:30,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:18:30,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:18:30,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:31,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:18:31,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:31,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:18:31,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:31,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:18:31,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:31,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:18:31,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:31,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:18:31,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:31,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:18:31,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:31,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:18:31,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:31,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:18:31,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:31,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:18:31,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:31,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:18:31,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:31,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:18:31,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:31,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:18:31,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:31,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:18:31,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:31,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:18:31,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:31,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 18:18:31,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:31,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-16 18:18:31,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:31,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-16 18:18:31,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:31,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-16 18:18:31,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:31,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-16 18:18:31,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:31,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-16 18:18:31,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:31,370 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 6 proven. 51 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-11-16 18:18:31,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:18:31,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009559202] [2024-11-16 18:18:31,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009559202] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 18:18:31,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [216449536] [2024-11-16 18:18:31,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:18:31,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 18:18:31,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 18:18:31,374 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 18:18:31,375 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 18:18:31,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:31,551 INFO L255 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-16 18:18:31,561 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 18:18:31,574 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 19 treesize of output 1 [2024-11-16 18:18:31,617 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 17 [2024-11-16 18:18:31,654 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 17 [2024-11-16 18:18:31,892 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 43 treesize of output 25 [2024-11-16 18:18:31,912 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 159 proven. 51 refuted. 0 times theorem prover too weak. 550 trivial. 0 not checked. [2024-11-16 18:18:31,912 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 18:18:32,239 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 6 proven. 51 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-11-16 18:18:32,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [216449536] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 18:18:32,240 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 18:18:32,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 12 [2024-11-16 18:18:32,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832040984] [2024-11-16 18:18:32,240 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 18:18:32,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-16 18:18:32,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:18:32,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-16 18:18:32,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-11-16 18:18:32,243 INFO L87 Difference]: Start difference. First operand 137 states and 180 transitions. Second operand has 12 states, 9 states have (on average 9.0) internal successors, (81), 12 states have internal predecessors, (81), 6 states have call successors, (41), 2 states have call predecessors, (41), 4 states have return successors, (41), 3 states have call predecessors, (41), 6 states have call successors, (41) [2024-11-16 18:18:32,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:18:32,651 INFO L93 Difference]: Finished difference Result 280 states and 365 transitions. [2024-11-16 18:18:32,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-16 18:18:32,653 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 9.0) internal successors, (81), 12 states have internal predecessors, (81), 6 states have call successors, (41), 2 states have call predecessors, (41), 4 states have return successors, (41), 3 states have call predecessors, (41), 6 states have call successors, (41) Word has length 160 [2024-11-16 18:18:32,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:18:32,655 INFO L225 Difference]: With dead ends: 280 [2024-11-16 18:18:32,655 INFO L226 Difference]: Without dead ends: 146 [2024-11-16 18:18:32,656 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 375 GetRequests, 352 SyntacticMatches, 5 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2024-11-16 18:18:32,656 INFO L432 NwaCegarLoop]: 91 mSDtfsCounter, 192 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 18:18:32,657 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 397 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 18:18:32,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2024-11-16 18:18:32,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 140. [2024-11-16 18:18:32,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 113 states have (on average 1.247787610619469) internal successors, (141), 113 states have internal predecessors, (141), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-16 18:18:32,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 181 transitions. [2024-11-16 18:18:32,680 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 181 transitions. Word has length 160 [2024-11-16 18:18:32,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:18:32,680 INFO L471 AbstractCegarLoop]: Abstraction has 140 states and 181 transitions. [2024-11-16 18:18:32,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 9.0) internal successors, (81), 12 states have internal predecessors, (81), 6 states have call successors, (41), 2 states have call predecessors, (41), 4 states have return successors, (41), 3 states have call predecessors, (41), 6 states have call successors, (41) [2024-11-16 18:18:32,681 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 181 transitions. [2024-11-16 18:18:32,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-16 18:18:32,682 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:18:32,683 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:18:32,702 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-16 18:18:32,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-16 18:18:32,884 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:18:32,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:18:32,884 INFO L85 PathProgramCache]: Analyzing trace with hash -426926707, now seen corresponding path program 1 times [2024-11-16 18:18:32,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:18:32,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670520700] [2024-11-16 18:18:32,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:18:32,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:18:33,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:35,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:18:35,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:35,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:18:35,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:35,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:18:35,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:35,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:18:35,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:35,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:18:35,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:35,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:18:35,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:35,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:18:35,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:35,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:18:35,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:35,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:18:35,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:35,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:18:35,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:35,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:18:35,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:35,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:18:35,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:35,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:18:35,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:35,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:18:35,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:35,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 18:18:35,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:35,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-16 18:18:35,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:35,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-16 18:18:35,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:35,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-16 18:18:35,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:35,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-16 18:18:35,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:35,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-16 18:18:35,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:35,407 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-16 18:18:35,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:18:35,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670520700] [2024-11-16 18:18:35,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670520700] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:18:35,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:18:35,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-11-16 18:18:35,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139012415] [2024-11-16 18:18:35,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:18:35,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-16 18:18:35,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:18:35,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-16 18:18:35,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=361, Unknown=0, NotChecked=0, Total=420 [2024-11-16 18:18:35,411 INFO L87 Difference]: Start difference. First operand 140 states and 181 transitions. Second operand has 21 states, 18 states have (on average 3.5) internal successors, (63), 19 states have internal predecessors, (63), 6 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 5 states have call predecessors, (20), 6 states have call successors, (20) [2024-11-16 18:18:37,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:18:37,688 INFO L93 Difference]: Finished difference Result 611 states and 792 transitions. [2024-11-16 18:18:37,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-16 18:18:37,689 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 18 states have (on average 3.5) internal successors, (63), 19 states have internal predecessors, (63), 6 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 5 states have call predecessors, (20), 6 states have call successors, (20) Word has length 160 [2024-11-16 18:18:37,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:18:37,693 INFO L225 Difference]: With dead ends: 611 [2024-11-16 18:18:37,694 INFO L226 Difference]: Without dead ends: 474 [2024-11-16 18:18:37,695 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 312 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=280, Invalid=1360, Unknown=0, NotChecked=0, Total=1640 [2024-11-16 18:18:37,696 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 1021 mSDsluCounter, 1889 mSDsCounter, 0 mSdLazyCounter, 1313 mSolverCounterSat, 287 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1021 SdHoareTripleChecker+Valid, 2056 SdHoareTripleChecker+Invalid, 1600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 287 IncrementalHoareTripleChecker+Valid, 1313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-16 18:18:37,696 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1021 Valid, 2056 Invalid, 1600 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [287 Valid, 1313 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-16 18:18:37,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2024-11-16 18:18:37,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 319. [2024-11-16 18:18:37,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 250 states have (on average 1.224) internal successors, (306), 251 states have internal predecessors, (306), 52 states have call successors, (52), 16 states have call predecessors, (52), 16 states have return successors, (52), 51 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-16 18:18:37,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 410 transitions. [2024-11-16 18:18:37,780 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 410 transitions. Word has length 160 [2024-11-16 18:18:37,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:18:37,780 INFO L471 AbstractCegarLoop]: Abstraction has 319 states and 410 transitions. [2024-11-16 18:18:37,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 18 states have (on average 3.5) internal successors, (63), 19 states have internal predecessors, (63), 6 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 5 states have call predecessors, (20), 6 states have call successors, (20) [2024-11-16 18:18:37,781 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 410 transitions. [2024-11-16 18:18:37,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-16 18:18:37,782 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:18:37,783 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:18:37,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 18:18:37,783 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:18:37,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:18:37,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1080625102, now seen corresponding path program 1 times [2024-11-16 18:18:37,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:18:37,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625461313] [2024-11-16 18:18:37,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:18:37,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:18:37,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:38,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:18:38,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:38,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:18:38,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:38,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:18:38,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:38,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:18:38,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:38,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:18:38,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:38,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:18:38,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:38,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:18:38,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:38,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:18:38,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:38,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:18:38,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:38,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:18:38,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:38,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:18:38,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:38,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:18:38,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:38,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:18:38,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:38,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:18:38,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:38,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 18:18:38,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:38,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-16 18:18:38,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:38,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-16 18:18:38,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:38,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-16 18:18:38,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:38,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-16 18:18:38,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:38,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-16 18:18:38,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:38,543 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-16 18:18:38,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:18:38,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625461313] [2024-11-16 18:18:38,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625461313] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:18:38,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:18:38,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 18:18:38,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206250170] [2024-11-16 18:18:38,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:18:38,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 18:18:38,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:18:38,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 18:18:38,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 18:18:38,548 INFO L87 Difference]: Start difference. First operand 319 states and 410 transitions. Second operand has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-16 18:18:38,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:18:38,871 INFO L93 Difference]: Finished difference Result 681 states and 880 transitions. [2024-11-16 18:18:38,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 18:18:38,872 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 160 [2024-11-16 18:18:38,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:18:38,880 INFO L225 Difference]: With dead ends: 681 [2024-11-16 18:18:38,880 INFO L226 Difference]: Without dead ends: 471 [2024-11-16 18:18:38,881 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-16 18:18:38,882 INFO L432 NwaCegarLoop]: 186 mSDtfsCounter, 88 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 758 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 18:18:38,883 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 758 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 18:18:38,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2024-11-16 18:18:39,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 466. [2024-11-16 18:18:39,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 466 states, 370 states have (on average 1.2297297297297298) internal successors, (455), 373 states have internal predecessors, (455), 72 states have call successors, (72), 23 states have call predecessors, (72), 23 states have return successors, (72), 69 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-16 18:18:39,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 599 transitions. [2024-11-16 18:18:39,012 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 599 transitions. Word has length 160 [2024-11-16 18:18:39,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:18:39,012 INFO L471 AbstractCegarLoop]: Abstraction has 466 states and 599 transitions. [2024-11-16 18:18:39,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-16 18:18:39,013 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 599 transitions. [2024-11-16 18:18:39,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-16 18:18:39,014 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:18:39,015 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:18:39,015 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 18:18:39,015 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:18:39,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:18:39,015 INFO L85 PathProgramCache]: Analyzing trace with hash -1271398578, now seen corresponding path program 1 times [2024-11-16 18:18:39,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:18:39,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101761469] [2024-11-16 18:18:39,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:18:39,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:18:39,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:39,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:18:39,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:39,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:18:39,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:39,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:18:39,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:39,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:18:39,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:39,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:18:39,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:39,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:18:39,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:39,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:18:39,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:39,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:18:39,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:39,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:18:39,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:39,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:18:39,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:39,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:18:39,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:39,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:18:39,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:39,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:18:39,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:39,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:18:39,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:39,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 18:18:39,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:39,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-16 18:18:39,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:39,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-16 18:18:39,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:39,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-16 18:18:39,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:39,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-16 18:18:39,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:39,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-16 18:18:39,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:39,756 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-16 18:18:39,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:18:39,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101761469] [2024-11-16 18:18:39,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101761469] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:18:39,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:18:39,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 18:18:39,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231331318] [2024-11-16 18:18:39,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:18:39,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 18:18:39,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:18:39,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 18:18:39,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 18:18:39,759 INFO L87 Difference]: Start difference. First operand 466 states and 599 transitions. Second operand has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-16 18:18:40,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:18:40,081 INFO L93 Difference]: Finished difference Result 892 states and 1154 transitions. [2024-11-16 18:18:40,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 18:18:40,082 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 160 [2024-11-16 18:18:40,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:18:40,085 INFO L225 Difference]: With dead ends: 892 [2024-11-16 18:18:40,085 INFO L226 Difference]: Without dead ends: 607 [2024-11-16 18:18:40,086 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-16 18:18:40,087 INFO L432 NwaCegarLoop]: 201 mSDtfsCounter, 86 mSDsluCounter, 617 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 818 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 18:18:40,087 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 818 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 18:18:40,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 607 states. [2024-11-16 18:18:40,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 607 to 463. [2024-11-16 18:18:40,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 463 states, 367 states have (on average 1.223433242506812) internal successors, (449), 370 states have internal predecessors, (449), 72 states have call successors, (72), 23 states have call predecessors, (72), 23 states have return successors, (72), 69 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-16 18:18:40,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 593 transitions. [2024-11-16 18:18:40,180 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 593 transitions. Word has length 160 [2024-11-16 18:18:40,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:18:40,182 INFO L471 AbstractCegarLoop]: Abstraction has 463 states and 593 transitions. [2024-11-16 18:18:40,182 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-16 18:18:40,182 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 593 transitions. [2024-11-16 18:18:40,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-16 18:18:40,184 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:18:40,184 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:18:40,184 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 18:18:40,184 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:18:40,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:18:40,185 INFO L85 PathProgramCache]: Analyzing trace with hash 236153231, now seen corresponding path program 1 times [2024-11-16 18:18:40,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:18:40,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309969161] [2024-11-16 18:18:40,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:18:40,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:18:40,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:42,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:18:42,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:42,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:18:42,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:42,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:18:42,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:42,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:18:42,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:42,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:18:42,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:42,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:18:42,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:42,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:18:42,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:42,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:18:42,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:42,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:18:42,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:42,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:18:42,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:42,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:18:42,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:42,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:18:42,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:42,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:18:42,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:42,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:18:42,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:42,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 18:18:42,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:42,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-16 18:18:42,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:42,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-16 18:18:42,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:42,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-16 18:18:42,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:42,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-16 18:18:42,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:42,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-16 18:18:42,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:42,723 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 39 proven. 18 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-11-16 18:18:42,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:18:42,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309969161] [2024-11-16 18:18:42,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309969161] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 18:18:42,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1233092707] [2024-11-16 18:18:42,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:18:42,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 18:18:42,724 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 18:18:42,726 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 18:18:42,727 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-16 18:18:42,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:18:42,914 INFO L255 TraceCheckSpWp]: Trace formula consists of 488 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-16 18:18:42,920 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 18:18:42,940 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 19 treesize of output 1 [2024-11-16 18:18:42,946 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 19 treesize of output 1 [2024-11-16 18:18:42,950 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 19 treesize of output 1 [2024-11-16 18:18:42,957 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 18:18:42,995 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 47 [2024-11-16 18:18:43,131 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 18:18:43,132 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 80 treesize of output 32 [2024-11-16 18:18:43,248 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-11-16 18:18:43,248 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 18:18:43,515 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-16 18:18:43,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1233092707] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-16 18:18:43,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-16 18:18:43,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [24, 10] total 31 [2024-11-16 18:18:43,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61000347] [2024-11-16 18:18:43,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:18:43,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 18:18:43,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:18:43,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 18:18:43,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=853, Unknown=0, NotChecked=0, Total=930 [2024-11-16 18:18:43,518 INFO L87 Difference]: Start difference. First operand 463 states and 593 transitions. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-16 18:18:44,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:18:44,071 INFO L93 Difference]: Finished difference Result 882 states and 1134 transitions. [2024-11-16 18:18:44,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 18:18:44,072 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 160 [2024-11-16 18:18:44,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:18:44,075 INFO L225 Difference]: With dead ends: 882 [2024-11-16 18:18:44,075 INFO L226 Difference]: Without dead ends: 609 [2024-11-16 18:18:44,077 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 386 GetRequests, 352 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=91, Invalid=1031, Unknown=0, NotChecked=0, Total=1122 [2024-11-16 18:18:44,077 INFO L432 NwaCegarLoop]: 223 mSDtfsCounter, 86 mSDsluCounter, 1092 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 1315 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 18:18:44,078 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 1315 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 18:18:44,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 609 states. [2024-11-16 18:18:44,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 609 to 461. [2024-11-16 18:18:44,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 461 states, 365 states have (on average 1.2219178082191782) internal successors, (446), 368 states have internal predecessors, (446), 72 states have call successors, (72), 23 states have call predecessors, (72), 23 states have return successors, (72), 69 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-16 18:18:44,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 590 transitions. [2024-11-16 18:18:44,228 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 590 transitions. Word has length 160 [2024-11-16 18:18:44,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:18:44,228 INFO L471 AbstractCegarLoop]: Abstraction has 461 states and 590 transitions. [2024-11-16 18:18:44,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-16 18:18:44,228 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 590 transitions. [2024-11-16 18:18:44,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-16 18:18:44,231 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:18:44,231 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:18:44,250 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-16 18:18:44,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 18:18:44,432 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:18:44,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:18:44,433 INFO L85 PathProgramCache]: Analyzing trace with hash 1684363662, now seen corresponding path program 1 times [2024-11-16 18:18:44,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:18:44,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880734593] [2024-11-16 18:18:44,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:18:44,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:18:44,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat