./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-input-tablet-kbtab.ko.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc 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/ldv-linux-3.0/usb_urb-drivers-input-tablet-kbtab.ko.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-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 64bit --witnessprinter.graph.data.programhash 7325716246446e6137919cda7fc42ef01fc613ff512d250d81e88f25c6debe0a --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 02:29:45,454 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 02:29:45,523 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-19 02:29:45,528 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 02:29:45,529 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 02:29:45,558 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 02:29:45,559 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 02:29:45,559 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 02:29:45,560 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 02:29:45,562 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 02:29:45,562 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 02:29:45,563 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 02:29:45,563 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 02:29:45,565 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 02:29:45,566 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 02:29:45,566 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 02:29:45,566 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 02:29:45,567 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 02:29:45,567 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 02:29:45,567 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 02:29:45,567 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 02:29:45,568 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 02:29:45,568 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 02:29:45,571 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 02:29:45,571 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 02:29:45,572 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 02:29:45,572 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 02:29:45,573 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 02:29:45,573 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 02:29:45,573 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 02:29:45,573 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 02:29:45,574 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 02:29:45,574 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 02:29:45,575 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 02:29:45,575 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 02:29:45,575 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 02:29:45,576 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 02:29:45,576 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 02:29:45,576 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 02:29:45,576 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7325716246446e6137919cda7fc42ef01fc613ff512d250d81e88f25c6debe0a [2024-11-19 02:29:45,890 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 02:29:45,915 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 02:29:45,918 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 02:29:45,919 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 02:29:45,920 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 02:29:45,921 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-input-tablet-kbtab.ko.cil.out.i [2024-11-19 02:29:47,457 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 02:29:47,894 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 02:29:47,896 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-input-tablet-kbtab.ko.cil.out.i [2024-11-19 02:29:47,933 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/243c7b7da/7f61fa584f3148418e45e10a195a78c6/FLAG236a90ed4 [2024-11-19 02:29:47,947 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/243c7b7da/7f61fa584f3148418e45e10a195a78c6 [2024-11-19 02:29:47,949 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 02:29:47,950 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 02:29:47,951 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 02:29:47,951 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 02:29:47,955 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 02:29:47,955 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:29:47" (1/1) ... [2024-11-19 02:29:47,956 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e28d8ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:29:47, skipping insertion in model container [2024-11-19 02:29:47,956 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:29:47" (1/1) ... [2024-11-19 02:29:48,036 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 02:29:48,877 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/ldv-linux-3.0/usb_urb-drivers-input-tablet-kbtab.ko.cil.out.i[115804,115817] [2024-11-19 02:29:48,931 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 02:29:48,979 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 02:29:49,146 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/ldv-linux-3.0/usb_urb-drivers-input-tablet-kbtab.ko.cil.out.i[115804,115817] [2024-11-19 02:29:49,153 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 02:29:49,247 INFO L204 MainTranslator]: Completed translation [2024-11-19 02:29:49,247 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:29:49 WrapperNode [2024-11-19 02:29:49,248 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 02:29:49,249 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 02:29:49,249 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 02:29:49,249 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 02:29:49,254 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:29:49" (1/1) ... [2024-11-19 02:29:49,291 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:29:49" (1/1) ... [2024-11-19 02:29:49,344 INFO L138 Inliner]: procedures = 78, calls = 266, calls flagged for inlining = 29, calls inlined = 26, statements flattened = 1024 [2024-11-19 02:29:49,344 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 02:29:49,345 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 02:29:49,345 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 02:29:49,345 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 02:29:49,358 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:29:49" (1/1) ... [2024-11-19 02:29:49,358 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:29:49" (1/1) ... [2024-11-19 02:29:49,371 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:29:49" (1/1) ... [2024-11-19 02:29:49,461 INFO L175 MemorySlicer]: Split 160 memory accesses to 6 slices as follows [2, 6, 8, 82, 42, 20]. 51 percent of accesses are in the largest equivalence class. The 23 initializations are split as follows [2, 6, 8, 6, 0, 1]. The 103 writes are split as follows [0, 0, 0, 42, 42, 19]. [2024-11-19 02:29:49,461 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:29:49" (1/1) ... [2024-11-19 02:29:49,461 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:29:49" (1/1) ... [2024-11-19 02:29:49,489 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:29:49" (1/1) ... [2024-11-19 02:29:49,507 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:29:49" (1/1) ... [2024-11-19 02:29:49,520 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:29:49" (1/1) ... [2024-11-19 02:29:49,532 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:29:49" (1/1) ... [2024-11-19 02:29:49,553 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 02:29:49,559 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 02:29:49,559 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 02:29:49,559 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 02:29:49,560 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:29:49" (1/1) ... [2024-11-19 02:29:49,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 02:29:49,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 02:29:49,610 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) [2024-11-19 02:29:49,615 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 [2024-11-19 02:29:49,665 INFO L130 BoogieDeclarations]: Found specification of procedure kbtab_init [2024-11-19 02:29:49,665 INFO L138 BoogieDeclarations]: Found implementation of procedure kbtab_init [2024-11-19 02:29:49,665 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 02:29:49,665 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2024-11-19 02:29:49,665 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2024-11-19 02:29:49,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-19 02:29:49,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-19 02:29:49,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-19 02:29:49,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-19 02:29:49,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-19 02:29:49,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-19 02:29:49,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-19 02:29:49,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-19 02:29:49,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-19 02:29:49,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-19 02:29:49,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-19 02:29:49,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-19 02:29:49,668 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2024-11-19 02:29:49,668 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2024-11-19 02:29:49,669 INFO L130 BoogieDeclarations]: Found specification of procedure kbtab_exit [2024-11-19 02:29:49,669 INFO L138 BoogieDeclarations]: Found implementation of procedure kbtab_exit [2024-11-19 02:29:49,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-19 02:29:49,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-19 02:29:49,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-19 02:29:49,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-19 02:29:49,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-19 02:29:49,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-19 02:29:49,670 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2024-11-19 02:29:49,671 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2024-11-19 02:29:49,671 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 02:29:49,671 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-19 02:29:49,671 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-19 02:29:49,671 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-19 02:29:49,671 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-19 02:29:49,671 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-19 02:29:49,671 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-19 02:29:49,671 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-19 02:29:49,671 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-19 02:29:49,671 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-19 02:29:49,671 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-19 02:29:49,671 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-19 02:29:49,672 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2024-11-19 02:29:49,672 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2024-11-19 02:29:49,672 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-19 02:29:49,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-19 02:29:49,672 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2024-11-19 02:29:49,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2024-11-19 02:29:49,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-19 02:29:49,674 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2024-11-19 02:29:49,677 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2024-11-19 02:29:49,677 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-19 02:29:49,677 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-19 02:29:49,677 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-19 02:29:49,677 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-19 02:29:49,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 02:29:49,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-19 02:29:49,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-19 02:29:49,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-19 02:29:49,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-19 02:29:49,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-19 02:29:49,678 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2024-11-19 02:29:49,678 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2024-11-19 02:29:49,678 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume_stop [2024-11-19 02:29:49,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume_stop [2024-11-19 02:29:49,679 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2024-11-19 02:29:49,679 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2024-11-19 02:29:49,679 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_pointer [2024-11-19 02:29:49,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undefined_pointer [2024-11-19 02:29:49,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 02:29:49,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 02:29:49,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-19 02:29:49,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-19 02:29:49,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-19 02:29:49,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-19 02:29:49,680 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-19 02:29:49,680 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 02:29:49,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 02:29:49,995 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 02:29:49,998 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 02:29:50,206 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_assume_stopFINAL: assume true; [2024-11-19 02:29:50,223 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-19 02:29:55,401 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume false; [2024-11-19 02:29:55,401 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume !false; [2024-11-19 02:29:55,481 INFO L? ?]: Removed 279 outVars from TransFormulas that were not future-live. [2024-11-19 02:29:55,481 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 02:29:55,504 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 02:29:55,506 INFO L316 CfgBuilder]: Removed 6 assume(true) statements. [2024-11-19 02:29:55,506 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:29:55 BoogieIcfgContainer [2024-11-19 02:29:55,506 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 02:29:55,509 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 02:29:55,510 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 02:29:55,513 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 02:29:55,514 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:29:47" (1/3) ... [2024-11-19 02:29:55,514 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b9a0b4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:29:55, skipping insertion in model container [2024-11-19 02:29:55,515 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:29:49" (2/3) ... [2024-11-19 02:29:55,515 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b9a0b4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:29:55, skipping insertion in model container [2024-11-19 02:29:55,516 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:29:55" (3/3) ... [2024-11-19 02:29:55,517 INFO L112 eAbstractionObserver]: Analyzing ICFG usb_urb-drivers-input-tablet-kbtab.ko.cil.out.i [2024-11-19 02:29:55,537 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 02:29:55,537 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 02:29:55,629 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 02:29:55,637 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;@eb62e33, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 02:29:55,638 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 02:29:55,643 INFO L276 IsEmpty]: Start isEmpty. Operand has 206 states, 160 states have (on average 1.3625) internal successors, (218), 168 states have internal predecessors, (218), 30 states have call successors, (30), 15 states have call predecessors, (30), 14 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-19 02:29:55,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-19 02:29:55,653 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 02:29:55,654 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 02:29:55,654 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 02:29:55,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 02:29:55,659 INFO L85 PathProgramCache]: Analyzing trace with hash -244939124, now seen corresponding path program 1 times [2024-11-19 02:29:55,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 02:29:55,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287611087] [2024-11-19 02:29:55,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:29:55,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 02:29:57,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:29:58,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 02:29:58,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 02:29:58,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287611087] [2024-11-19 02:29:58,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287611087] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 02:29:58,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 02:29:58,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 02:29:58,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284950402] [2024-11-19 02:29:58,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 02:29:58,150 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 02:29:58,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 02:29:58,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 02:29:58,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 02:29:58,181 INFO L87 Difference]: Start difference. First operand has 206 states, 160 states have (on average 1.3625) internal successors, (218), 168 states have internal predecessors, (218), 30 states have call successors, (30), 15 states have call predecessors, (30), 14 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 02:29:58,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 02:29:58,318 INFO L93 Difference]: Finished difference Result 566 states and 784 transitions. [2024-11-19 02:29:58,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 02:29:58,323 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2024-11-19 02:29:58,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 02:29:58,335 INFO L225 Difference]: With dead ends: 566 [2024-11-19 02:29:58,335 INFO L226 Difference]: Without dead ends: 368 [2024-11-19 02:29:58,339 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 02:29:58,341 INFO L432 NwaCegarLoop]: 324 mSDtfsCounter, 240 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 544 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 02:29:58,342 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [240 Valid, 544 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 02:29:58,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2024-11-19 02:29:58,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 364. [2024-11-19 02:29:58,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 289 states have (on average 1.2491349480968859) internal successors, (361), 293 states have internal predecessors, (361), 50 states have call successors, (50), 25 states have call predecessors, (50), 24 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-19 02:29:58,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 457 transitions. [2024-11-19 02:29:58,418 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 457 transitions. Word has length 17 [2024-11-19 02:29:58,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 02:29:58,419 INFO L471 AbstractCegarLoop]: Abstraction has 364 states and 457 transitions. [2024-11-19 02:29:58,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 02:29:58,419 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 457 transitions. [2024-11-19 02:29:58,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-19 02:29:58,420 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 02:29:58,420 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 02:29:58,421 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 02:29:58,421 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 02:29:58,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 02:29:58,422 INFO L85 PathProgramCache]: Analyzing trace with hash 996714932, now seen corresponding path program 1 times [2024-11-19 02:29:58,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 02:29:58,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449852069] [2024-11-19 02:29:58,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:29:58,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 02:29:59,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:29:59,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 02:29:59,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 02:29:59,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449852069] [2024-11-19 02:29:59,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449852069] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 02:29:59,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 02:29:59,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 02:29:59,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444013376] [2024-11-19 02:29:59,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 02:29:59,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 02:29:59,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 02:29:59,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 02:29:59,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 02:29:59,975 INFO L87 Difference]: Start difference. First operand 364 states and 457 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 02:30:00,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 02:30:00,053 INFO L93 Difference]: Finished difference Result 1053 states and 1332 transitions. [2024-11-19 02:30:00,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 02:30:00,054 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2024-11-19 02:30:00,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 02:30:00,063 INFO L225 Difference]: With dead ends: 1053 [2024-11-19 02:30:00,063 INFO L226 Difference]: Without dead ends: 699 [2024-11-19 02:30:00,065 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 02:30:00,066 INFO L432 NwaCegarLoop]: 338 mSDtfsCounter, 230 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 556 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 02:30:00,067 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 556 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 02:30:00,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2024-11-19 02:30:00,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 692. [2024-11-19 02:30:00,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 692 states, 553 states have (on average 1.2459312839059675) internal successors, (689), 556 states have internal predecessors, (689), 93 states have call successors, (93), 46 states have call predecessors, (93), 45 states have return successors, (89), 89 states have call predecessors, (89), 89 states have call successors, (89) [2024-11-19 02:30:00,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 871 transitions. [2024-11-19 02:30:00,143 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 871 transitions. Word has length 18 [2024-11-19 02:30:00,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 02:30:00,145 INFO L471 AbstractCegarLoop]: Abstraction has 692 states and 871 transitions. [2024-11-19 02:30:00,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 02:30:00,145 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 871 transitions. [2024-11-19 02:30:00,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-19 02:30:00,147 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 02:30:00,147 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 02:30:00,147 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 02:30:00,147 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 02:30:00,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 02:30:00,148 INFO L85 PathProgramCache]: Analyzing trace with hash 2050665313, now seen corresponding path program 1 times [2024-11-19 02:30:00,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 02:30:00,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508112048] [2024-11-19 02:30:00,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:30:00,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 02:30:01,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:30:01,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 02:30:01,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 02:30:01,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508112048] [2024-11-19 02:30:01,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508112048] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 02:30:01,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 02:30:01,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 02:30:01,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712445681] [2024-11-19 02:30:01,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 02:30:01,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 02:30:01,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 02:30:01,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 02:30:01,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 02:30:01,755 INFO L87 Difference]: Start difference. First operand 692 states and 871 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 02:30:01,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 02:30:01,860 INFO L93 Difference]: Finished difference Result 1371 states and 1728 transitions. [2024-11-19 02:30:01,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 02:30:01,861 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 51 [2024-11-19 02:30:01,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 02:30:01,869 INFO L225 Difference]: With dead ends: 1371 [2024-11-19 02:30:01,869 INFO L226 Difference]: Without dead ends: 692 [2024-11-19 02:30:01,872 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 02:30:01,874 INFO L432 NwaCegarLoop]: 240 mSDtfsCounter, 0 mSDsluCounter, 953 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1193 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 02:30:01,876 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1193 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 02:30:01,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 692 states. [2024-11-19 02:30:01,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 692 to 692. [2024-11-19 02:30:01,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 692 states, 553 states have (on average 1.244122965641953) internal successors, (688), 556 states have internal predecessors, (688), 93 states have call successors, (93), 46 states have call predecessors, (93), 45 states have return successors, (89), 89 states have call predecessors, (89), 89 states have call successors, (89) [2024-11-19 02:30:01,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 870 transitions. [2024-11-19 02:30:01,911 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 870 transitions. Word has length 51 [2024-11-19 02:30:01,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 02:30:01,912 INFO L471 AbstractCegarLoop]: Abstraction has 692 states and 870 transitions. [2024-11-19 02:30:01,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 02:30:01,913 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 870 transitions. [2024-11-19 02:30:01,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-19 02:30:01,915 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 02:30:01,915 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 02:30:01,916 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 02:30:01,916 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 02:30:01,916 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 02:30:01,916 INFO L85 PathProgramCache]: Analyzing trace with hash 738798770, now seen corresponding path program 1 times [2024-11-19 02:30:01,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 02:30:01,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319265200] [2024-11-19 02:30:01,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:30:01,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 02:30:03,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:30:03,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 02:30:03,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 02:30:03,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319265200] [2024-11-19 02:30:03,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319265200] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 02:30:03,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 02:30:03,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 02:30:03,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435599406] [2024-11-19 02:30:03,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 02:30:03,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 02:30:03,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 02:30:03,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 02:30:03,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 02:30:03,383 INFO L87 Difference]: Start difference. First operand 692 states and 870 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-19 02:30:03,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 02:30:03,475 INFO L93 Difference]: Finished difference Result 1414 states and 1797 transitions. [2024-11-19 02:30:03,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 02:30:03,476 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 56 [2024-11-19 02:30:03,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 02:30:03,481 INFO L225 Difference]: With dead ends: 1414 [2024-11-19 02:30:03,481 INFO L226 Difference]: Without dead ends: 739 [2024-11-19 02:30:03,485 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 02:30:03,487 INFO L432 NwaCegarLoop]: 238 mSDtfsCounter, 107 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 02:30:03,488 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 359 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 02:30:03,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 739 states. [2024-11-19 02:30:03,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 739 to 727. [2024-11-19 02:30:03,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 727 states, 588 states have (on average 1.248299319727891) internal successors, (734), 591 states have internal predecessors, (734), 93 states have call successors, (93), 46 states have call predecessors, (93), 45 states have return successors, (89), 89 states have call predecessors, (89), 89 states have call successors, (89) [2024-11-19 02:30:03,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 727 states to 727 states and 916 transitions. [2024-11-19 02:30:03,535 INFO L78 Accepts]: Start accepts. Automaton has 727 states and 916 transitions. Word has length 56 [2024-11-19 02:30:03,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 02:30:03,537 INFO L471 AbstractCegarLoop]: Abstraction has 727 states and 916 transitions. [2024-11-19 02:30:03,537 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-19 02:30:03,537 INFO L276 IsEmpty]: Start isEmpty. Operand 727 states and 916 transitions. [2024-11-19 02:30:03,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-19 02:30:03,541 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 02:30:03,541 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 02:30:03,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 02:30:03,542 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 02:30:03,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 02:30:03,543 INFO L85 PathProgramCache]: Analyzing trace with hash -581652613, now seen corresponding path program 1 times [2024-11-19 02:30:03,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 02:30:03,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271135791] [2024-11-19 02:30:03,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:30:03,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 02:30:04,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:30:05,836 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-19 02:30:05,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 02:30:05,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271135791] [2024-11-19 02:30:05,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271135791] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 02:30:05,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1816674404] [2024-11-19 02:30:05,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:30:05,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 02:30:05,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 02:30:05,840 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) [2024-11-19 02:30:05,841 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 02:30:07,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:30:07,383 INFO L255 TraceCheckSpWp]: Trace formula consists of 1683 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-19 02:30:07,393 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 02:30:07,539 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-19 02:30:07,540 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 02:30:07,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1816674404] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 02:30:07,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 02:30:07,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2024-11-19 02:30:07,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168316145] [2024-11-19 02:30:07,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 02:30:07,541 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 02:30:07,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 02:30:07,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 02:30:07,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-19 02:30:07,542 INFO L87 Difference]: Start difference. First operand 727 states and 916 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-19 02:30:07,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 02:30:07,600 INFO L93 Difference]: Finished difference Result 1193 states and 1500 transitions. [2024-11-19 02:30:07,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 02:30:07,601 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 95 [2024-11-19 02:30:07,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 02:30:07,605 INFO L225 Difference]: With dead ends: 1193 [2024-11-19 02:30:07,606 INFO L226 Difference]: Without dead ends: 484 [2024-11-19 02:30:07,608 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-19 02:30:07,608 INFO L432 NwaCegarLoop]: 239 mSDtfsCounter, 0 mSDsluCounter, 472 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 711 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 02:30:07,609 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 711 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 02:30:07,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2024-11-19 02:30:07,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 484. [2024-11-19 02:30:07,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 387 states have (on average 1.2325581395348837) internal successors, (477), 390 states have internal predecessors, (477), 63 states have call successors, (63), 34 states have call predecessors, (63), 33 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2024-11-19 02:30:07,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 599 transitions. [2024-11-19 02:30:07,628 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 599 transitions. Word has length 95 [2024-11-19 02:30:07,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 02:30:07,630 INFO L471 AbstractCegarLoop]: Abstraction has 484 states and 599 transitions. [2024-11-19 02:30:07,630 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-19 02:30:07,630 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 599 transitions. [2024-11-19 02:30:07,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-19 02:30:07,635 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 02:30:07,635 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 02:30:07,657 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-19 02:30:07,839 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 [2024-11-19 02:30:07,840 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 02:30:07,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 02:30:07,841 INFO L85 PathProgramCache]: Analyzing trace with hash 45648230, now seen corresponding path program 1 times [2024-11-19 02:30:07,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 02:30:07,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969097457] [2024-11-19 02:30:07,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:30:07,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 02:30:09,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:30:09,978 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-19 02:30:09,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 02:30:09,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969097457] [2024-11-19 02:30:09,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969097457] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 02:30:09,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1633431711] [2024-11-19 02:30:09,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:30:09,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 02:30:09,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 02:30:09,983 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) [2024-11-19 02:30:09,985 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 02:30:11,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:30:11,445 INFO L255 TraceCheckSpWp]: Trace formula consists of 1623 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-19 02:30:11,452 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 02:30:11,679 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-19 02:30:11,679 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 02:30:11,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1633431711] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 02:30:11,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 02:30:11,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [9] total 12 [2024-11-19 02:30:11,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295729160] [2024-11-19 02:30:11,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 02:30:11,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 02:30:11,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 02:30:11,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 02:30:11,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-19 02:30:11,682 INFO L87 Difference]: Start difference. First operand 484 states and 599 transitions. Second operand has 10 states, 10 states have (on average 6.7) internal successors, (67), 8 states have internal predecessors, (67), 2 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (10), 4 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-19 02:30:11,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 02:30:11,954 INFO L93 Difference]: Finished difference Result 986 states and 1231 transitions. [2024-11-19 02:30:11,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 02:30:11,955 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.7) internal successors, (67), 8 states have internal predecessors, (67), 2 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (10), 4 states have call predecessors, (10), 2 states have call successors, (10) Word has length 92 [2024-11-19 02:30:11,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 02:30:11,961 INFO L225 Difference]: With dead ends: 986 [2024-11-19 02:30:11,961 INFO L226 Difference]: Without dead ends: 520 [2024-11-19 02:30:11,963 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-19 02:30:11,964 INFO L432 NwaCegarLoop]: 241 mSDtfsCounter, 1 mSDsluCounter, 1901 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2142 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 02:30:11,964 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2142 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 02:30:11,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2024-11-19 02:30:11,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 517. [2024-11-19 02:30:11,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 517 states, 414 states have (on average 1.2246376811594204) internal successors, (507), 417 states have internal predecessors, (507), 63 states have call successors, (63), 34 states have call predecessors, (63), 39 states have return successors, (74), 65 states have call predecessors, (74), 59 states have call successors, (74) [2024-11-19 02:30:11,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 644 transitions. [2024-11-19 02:30:11,987 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 644 transitions. Word has length 92 [2024-11-19 02:30:11,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 02:30:11,987 INFO L471 AbstractCegarLoop]: Abstraction has 517 states and 644 transitions. [2024-11-19 02:30:11,987 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.7) internal successors, (67), 8 states have internal predecessors, (67), 2 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (10), 4 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-19 02:30:11,988 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 644 transitions. [2024-11-19 02:30:11,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-19 02:30:11,989 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 02:30:11,989 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 02:30:12,013 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-19 02:30:12,190 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 [2024-11-19 02:30:12,191 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 02:30:12,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 02:30:12,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1137699067, now seen corresponding path program 1 times [2024-11-19 02:30:12,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 02:30:12,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007633534] [2024-11-19 02:30:12,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:30:12,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 02:30:13,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:30:14,457 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-19 02:30:14,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 02:30:14,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007633534] [2024-11-19 02:30:14,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007633534] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 02:30:14,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1337966295] [2024-11-19 02:30:14,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:30:14,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 02:30:14,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 02:30:14,460 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) [2024-11-19 02:30:14,461 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 02:30:15,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:30:15,949 INFO L255 TraceCheckSpWp]: Trace formula consists of 1632 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-19 02:30:15,961 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 02:30:16,064 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 8 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-19 02:30:16,067 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 02:30:16,571 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-19 02:30:16,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1337966295] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 02:30:16,571 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 02:30:16,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 9 [2024-11-19 02:30:16,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214024664] [2024-11-19 02:30:16,572 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 02:30:16,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 02:30:16,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 02:30:16,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 02:30:16,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-19 02:30:16,574 INFO L87 Difference]: Start difference. First operand 517 states and 644 transitions. Second operand has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 7 states have internal predecessors, (75), 3 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (14), 5 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-19 02:30:16,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 02:30:16,807 INFO L93 Difference]: Finished difference Result 1055 states and 1324 transitions. [2024-11-19 02:30:16,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 02:30:16,808 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 7 states have internal predecessors, (75), 3 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (14), 5 states have call predecessors, (14), 3 states have call successors, (14) Word has length 92 [2024-11-19 02:30:16,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 02:30:16,811 INFO L225 Difference]: With dead ends: 1055 [2024-11-19 02:30:16,812 INFO L226 Difference]: Without dead ends: 556 [2024-11-19 02:30:16,813 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-19 02:30:16,814 INFO L432 NwaCegarLoop]: 242 mSDtfsCounter, 3 mSDsluCounter, 1666 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1908 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 02:30:16,814 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1908 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 02:30:16,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2024-11-19 02:30:16,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 532. [2024-11-19 02:30:16,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 426 states have (on average 1.2183098591549295) internal successors, (519), 426 states have internal predecessors, (519), 66 states have call successors, (66), 34 states have call predecessors, (66), 39 states have return successors, (80), 71 states have call predecessors, (80), 62 states have call successors, (80) [2024-11-19 02:30:16,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 665 transitions. [2024-11-19 02:30:16,837 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 665 transitions. Word has length 92 [2024-11-19 02:30:16,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 02:30:16,838 INFO L471 AbstractCegarLoop]: Abstraction has 532 states and 665 transitions. [2024-11-19 02:30:16,838 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 7 states have internal predecessors, (75), 3 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (14), 5 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-19 02:30:16,838 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 665 transitions. [2024-11-19 02:30:16,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-19 02:30:16,840 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 02:30:16,840 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 02:30:16,865 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-19 02:30:17,040 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 02:30:17,041 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 02:30:17,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 02:30:17,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1990571910, now seen corresponding path program 2 times [2024-11-19 02:30:17,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 02:30:17,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413224067] [2024-11-19 02:30:17,042 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 02:30:17,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 02:30:18,166 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 02:30:18,166 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 02:30:18,639 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-19 02:30:18,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 02:30:18,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413224067] [2024-11-19 02:30:18,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413224067] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 02:30:18,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 02:30:18,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 02:30:18,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674640880] [2024-11-19 02:30:18,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 02:30:18,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 02:30:18,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 02:30:18,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 02:30:18,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 02:30:18,642 INFO L87 Difference]: Start difference. First operand 532 states and 665 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-19 02:30:18,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 02:30:18,709 INFO L93 Difference]: Finished difference Result 947 states and 1194 transitions. [2024-11-19 02:30:18,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 02:30:18,709 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) Word has length 92 [2024-11-19 02:30:18,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 02:30:18,713 INFO L225 Difference]: With dead ends: 947 [2024-11-19 02:30:18,713 INFO L226 Difference]: Without dead ends: 547 [2024-11-19 02:30:18,714 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 02:30:18,715 INFO L432 NwaCegarLoop]: 238 mSDtfsCounter, 0 mSDsluCounter, 1183 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1421 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 02:30:18,716 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1421 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 02:30:18,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2024-11-19 02:30:18,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 547. [2024-11-19 02:30:18,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 438 states have (on average 1.2123287671232876) internal successors, (531), 435 states have internal predecessors, (531), 66 states have call successors, (66), 34 states have call predecessors, (66), 42 states have return successors, (85), 77 states have call predecessors, (85), 62 states have call successors, (85) [2024-11-19 02:30:18,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 682 transitions. [2024-11-19 02:30:18,740 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 682 transitions. Word has length 92 [2024-11-19 02:30:18,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 02:30:18,740 INFO L471 AbstractCegarLoop]: Abstraction has 547 states and 682 transitions. [2024-11-19 02:30:18,740 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-19 02:30:18,741 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 682 transitions. [2024-11-19 02:30:18,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-19 02:30:18,742 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 02:30:18,742 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 02:30:18,742 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 02:30:18,742 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 02:30:18,743 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 02:30:18,743 INFO L85 PathProgramCache]: Analyzing trace with hash 2001888037, now seen corresponding path program 1 times [2024-11-19 02:30:18,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 02:30:18,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521434166] [2024-11-19 02:30:18,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:30:18,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 02:30:19,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:30:20,464 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-19 02:30:20,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 02:30:20,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521434166] [2024-11-19 02:30:20,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521434166] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 02:30:20,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 02:30:20,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 02:30:20,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419783895] [2024-11-19 02:30:20,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 02:30:20,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 02:30:20,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 02:30:20,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 02:30:20,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-19 02:30:20,467 INFO L87 Difference]: Start difference. First operand 547 states and 682 transitions. Second operand has 9 states, 9 states have (on average 6.666666666666667) internal successors, (60), 7 states have internal predecessors, (60), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-19 02:30:20,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 02:30:20,576 INFO L93 Difference]: Finished difference Result 957 states and 1203 transitions. [2024-11-19 02:30:20,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 02:30:20,577 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.666666666666667) internal successors, (60), 7 states have internal predecessors, (60), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) Word has length 92 [2024-11-19 02:30:20,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 02:30:20,580 INFO L225 Difference]: With dead ends: 957 [2024-11-19 02:30:20,580 INFO L226 Difference]: Without dead ends: 547 [2024-11-19 02:30:20,582 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-19 02:30:20,583 INFO L432 NwaCegarLoop]: 236 mSDtfsCounter, 0 mSDsluCounter, 1636 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1872 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 02:30:20,584 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1872 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 02:30:20,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2024-11-19 02:30:20,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 547. [2024-11-19 02:30:20,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 438 states have (on average 1.2077625570776256) internal successors, (529), 435 states have internal predecessors, (529), 66 states have call successors, (66), 34 states have call predecessors, (66), 42 states have return successors, (85), 77 states have call predecessors, (85), 62 states have call successors, (85) [2024-11-19 02:30:20,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 680 transitions. [2024-11-19 02:30:20,606 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 680 transitions. Word has length 92 [2024-11-19 02:30:20,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 02:30:20,607 INFO L471 AbstractCegarLoop]: Abstraction has 547 states and 680 transitions. [2024-11-19 02:30:20,607 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.666666666666667) internal successors, (60), 7 states have internal predecessors, (60), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-19 02:30:20,607 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 680 transitions. [2024-11-19 02:30:20,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-19 02:30:20,608 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 02:30:20,609 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 02:30:20,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 02:30:20,609 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 02:30:20,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 02:30:20,609 INFO L85 PathProgramCache]: Analyzing trace with hash -590762086, now seen corresponding path program 1 times [2024-11-19 02:30:20,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 02:30:20,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300039763] [2024-11-19 02:30:20,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:30:20,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 02:30:21,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:30:21,992 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-19 02:30:21,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 02:30:21,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300039763] [2024-11-19 02:30:21,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300039763] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 02:30:21,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 02:30:21,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 02:30:21,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737355306] [2024-11-19 02:30:21,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 02:30:21,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 02:30:21,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 02:30:21,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 02:30:21,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 02:30:21,995 INFO L87 Difference]: Start difference. First operand 547 states and 680 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 4 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-19 02:30:26,017 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-19 02:30:26,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 02:30:26,404 INFO L93 Difference]: Finished difference Result 962 states and 1206 transitions. [2024-11-19 02:30:26,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 02:30:26,405 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 4 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 95 [2024-11-19 02:30:26,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 02:30:26,411 INFO L225 Difference]: With dead ends: 962 [2024-11-19 02:30:26,411 INFO L226 Difference]: Without dead ends: 959 [2024-11-19 02:30:26,412 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 02:30:26,412 INFO L432 NwaCegarLoop]: 345 mSDtfsCounter, 309 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 745 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-11-19 02:30:26,413 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [309 Valid, 745 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 95 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2024-11-19 02:30:26,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 959 states. [2024-11-19 02:30:26,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 959 to 931. [2024-11-19 02:30:26,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 931 states, 752 states have (on average 1.2180851063829787) internal successors, (916), 745 states have internal predecessors, (916), 110 states have call successors, (110), 54 states have call predecessors, (110), 68 states have return successors, (149), 131 states have call predecessors, (149), 106 states have call successors, (149) [2024-11-19 02:30:26,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 931 states to 931 states and 1175 transitions. [2024-11-19 02:30:26,447 INFO L78 Accepts]: Start accepts. Automaton has 931 states and 1175 transitions. Word has length 95 [2024-11-19 02:30:26,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 02:30:26,447 INFO L471 AbstractCegarLoop]: Abstraction has 931 states and 1175 transitions. [2024-11-19 02:30:26,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 4 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-19 02:30:26,448 INFO L276 IsEmpty]: Start isEmpty. Operand 931 states and 1175 transitions. [2024-11-19 02:30:26,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-19 02:30:26,451 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 02:30:26,451 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 02:30:26,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 02:30:26,451 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 02:30:26,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 02:30:26,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1654135593, now seen corresponding path program 1 times [2024-11-19 02:30:26,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 02:30:26,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519333251] [2024-11-19 02:30:26,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:30:26,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 02:30:27,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:30:27,547 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-19 02:30:27,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 02:30:27,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519333251] [2024-11-19 02:30:27,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519333251] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 02:30:27,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 02:30:27,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 02:30:27,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393017976] [2024-11-19 02:30:27,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 02:30:27,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 02:30:27,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 02:30:27,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 02:30:27,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 02:30:27,550 INFO L87 Difference]: Start difference. First operand 931 states and 1175 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-19 02:30:31,572 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-19 02:30:31,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 02:30:31,669 INFO L93 Difference]: Finished difference Result 1856 states and 2348 transitions. [2024-11-19 02:30:31,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 02:30:31,670 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 105 [2024-11-19 02:30:31,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 02:30:31,675 INFO L225 Difference]: With dead ends: 1856 [2024-11-19 02:30:31,675 INFO L226 Difference]: Without dead ends: 910 [2024-11-19 02:30:31,677 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 02:30:31,678 INFO L432 NwaCegarLoop]: 238 mSDtfsCounter, 94 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 852 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-19 02:30:31,678 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 852 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-11-19 02:30:31,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 910 states. [2024-11-19 02:30:31,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 910 to 883. [2024-11-19 02:30:31,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 883 states, 714 states have (on average 1.2128851540616246) internal successors, (866), 711 states have internal predecessors, (866), 109 states have call successors, (109), 48 states have call predecessors, (109), 59 states have return successors, (143), 123 states have call predecessors, (143), 105 states have call successors, (143) [2024-11-19 02:30:31,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 1118 transitions. [2024-11-19 02:30:31,708 INFO L78 Accepts]: Start accepts. Automaton has 883 states and 1118 transitions. Word has length 105 [2024-11-19 02:30:31,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 02:30:31,708 INFO L471 AbstractCegarLoop]: Abstraction has 883 states and 1118 transitions. [2024-11-19 02:30:31,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-19 02:30:31,709 INFO L276 IsEmpty]: Start isEmpty. Operand 883 states and 1118 transitions. [2024-11-19 02:30:31,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-19 02:30:31,710 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 02:30:31,710 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 02:30:31,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 02:30:31,710 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 02:30:31,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 02:30:31,711 INFO L85 PathProgramCache]: Analyzing trace with hash 1595221628, now seen corresponding path program 1 times [2024-11-19 02:30:31,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 02:30:31,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85187208] [2024-11-19 02:30:31,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:30:31,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 02:30:32,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:30:33,203 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-19 02:30:33,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 02:30:33,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85187208] [2024-11-19 02:30:33,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85187208] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 02:30:33,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 02:30:33,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 02:30:33,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104860153] [2024-11-19 02:30:33,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 02:30:33,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 02:30:33,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 02:30:33,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 02:30:33,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 02:30:33,205 INFO L87 Difference]: Start difference. First operand 883 states and 1118 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (12), 4 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-19 02:30:33,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 02:30:33,299 INFO L93 Difference]: Finished difference Result 1309 states and 1664 transitions. [2024-11-19 02:30:33,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 02:30:33,300 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (12), 4 states have call predecessors, (12), 2 states have call successors, (12) Word has length 114 [2024-11-19 02:30:33,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 02:30:33,307 INFO L225 Difference]: With dead ends: 1309 [2024-11-19 02:30:33,307 INFO L226 Difference]: Without dead ends: 891 [2024-11-19 02:30:33,309 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 02:30:33,310 INFO L432 NwaCegarLoop]: 244 mSDtfsCounter, 0 mSDsluCounter, 1208 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1452 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 02:30:33,310 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1452 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 02:30:33,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 891 states. [2024-11-19 02:30:33,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 891 to 891. [2024-11-19 02:30:33,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 891 states, 722 states have (on average 1.2105263157894737) internal successors, (874), 715 states have internal predecessors, (874), 109 states have call successors, (109), 48 states have call predecessors, (109), 59 states have return successors, (143), 127 states have call predecessors, (143), 105 states have call successors, (143) [2024-11-19 02:30:33,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 891 states to 891 states and 1126 transitions. [2024-11-19 02:30:33,339 INFO L78 Accepts]: Start accepts. Automaton has 891 states and 1126 transitions. Word has length 114 [2024-11-19 02:30:33,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 02:30:33,339 INFO L471 AbstractCegarLoop]: Abstraction has 891 states and 1126 transitions. [2024-11-19 02:30:33,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (12), 4 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-19 02:30:33,339 INFO L276 IsEmpty]: Start isEmpty. Operand 891 states and 1126 transitions. [2024-11-19 02:30:33,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-19 02:30:33,340 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 02:30:33,341 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 02:30:33,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-19 02:30:33,341 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 02:30:33,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 02:30:33,341 INFO L85 PathProgramCache]: Analyzing trace with hash -1066941669, now seen corresponding path program 1 times [2024-11-19 02:30:33,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 02:30:33,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213344622] [2024-11-19 02:30:33,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:30:33,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 02:30:34,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:30:34,954 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-19 02:30:34,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 02:30:34,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213344622] [2024-11-19 02:30:34,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213344622] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 02:30:34,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 02:30:34,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 02:30:34,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856182224] [2024-11-19 02:30:34,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 02:30:34,955 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 02:30:34,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 02:30:34,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 02:30:34,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-19 02:30:34,956 INFO L87 Difference]: Start difference. First operand 891 states and 1126 transitions. Second operand has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 7 states have internal predecessors, (73), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (12), 4 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-19 02:30:35,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 02:30:35,126 INFO L93 Difference]: Finished difference Result 945 states and 1186 transitions. [2024-11-19 02:30:35,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 02:30:35,127 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 7 states have internal predecessors, (73), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (12), 4 states have call predecessors, (12), 2 states have call successors, (12) Word has length 114 [2024-11-19 02:30:35,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 02:30:35,132 INFO L225 Difference]: With dead ends: 945 [2024-11-19 02:30:35,133 INFO L226 Difference]: Without dead ends: 895 [2024-11-19 02:30:35,133 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-19 02:30:35,135 INFO L432 NwaCegarLoop]: 237 mSDtfsCounter, 0 mSDsluCounter, 1642 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1879 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 02:30:35,135 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1879 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 02:30:35,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 895 states. [2024-11-19 02:30:35,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 895 to 895. [2024-11-19 02:30:35,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 895 states, 726 states have (on average 1.209366391184573) internal successors, (878), 719 states have internal predecessors, (878), 109 states have call successors, (109), 48 states have call predecessors, (109), 59 states have return successors, (143), 127 states have call predecessors, (143), 105 states have call successors, (143) [2024-11-19 02:30:35,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 895 states to 895 states and 1130 transitions. [2024-11-19 02:30:35,167 INFO L78 Accepts]: Start accepts. Automaton has 895 states and 1130 transitions. Word has length 114 [2024-11-19 02:30:35,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 02:30:35,168 INFO L471 AbstractCegarLoop]: Abstraction has 895 states and 1130 transitions. [2024-11-19 02:30:35,168 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 7 states have internal predecessors, (73), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (12), 4 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-19 02:30:35,168 INFO L276 IsEmpty]: Start isEmpty. Operand 895 states and 1130 transitions. [2024-11-19 02:30:35,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-19 02:30:35,170 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 02:30:35,170 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 02:30:35,170 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-19 02:30:35,171 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 02:30:35,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 02:30:35,171 INFO L85 PathProgramCache]: Analyzing trace with hash 1932363782, now seen corresponding path program 1 times [2024-11-19 02:30:35,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 02:30:35,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090188557] [2024-11-19 02:30:35,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:30:35,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 02:30:36,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:30:36,391 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-19 02:30:36,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 02:30:36,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090188557] [2024-11-19 02:30:36,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090188557] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 02:30:36,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 02:30:36,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 02:30:36,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700329856] [2024-11-19 02:30:36,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 02:30:36,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 02:30:36,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 02:30:36,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 02:30:36,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 02:30:36,395 INFO L87 Difference]: Start difference. First operand 895 states and 1130 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-19 02:30:36,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 02:30:36,430 INFO L93 Difference]: Finished difference Result 1695 states and 2158 transitions. [2024-11-19 02:30:36,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 02:30:36,431 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 115 [2024-11-19 02:30:36,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 02:30:36,437 INFO L225 Difference]: With dead ends: 1695 [2024-11-19 02:30:36,437 INFO L226 Difference]: Without dead ends: 857 [2024-11-19 02:30:36,439 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 02:30:36,440 INFO L432 NwaCegarLoop]: 239 mSDtfsCounter, 0 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 02:30:36,440 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 476 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 02:30:36,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 857 states. [2024-11-19 02:30:36,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 857 to 857. [2024-11-19 02:30:36,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 857 states, 694 states have (on average 1.2046109510086456) internal successors, (836), 691 states have internal predecessors, (836), 105 states have call successors, (105), 48 states have call predecessors, (105), 57 states have return successors, (133), 117 states have call predecessors, (133), 101 states have call successors, (133) [2024-11-19 02:30:36,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 857 states to 857 states and 1074 transitions. [2024-11-19 02:30:36,478 INFO L78 Accepts]: Start accepts. Automaton has 857 states and 1074 transitions. Word has length 115 [2024-11-19 02:30:36,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 02:30:36,478 INFO L471 AbstractCegarLoop]: Abstraction has 857 states and 1074 transitions. [2024-11-19 02:30:36,479 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-19 02:30:36,479 INFO L276 IsEmpty]: Start isEmpty. Operand 857 states and 1074 transitions. [2024-11-19 02:30:36,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-19 02:30:36,480 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 02:30:36,480 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 02:30:36,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-19 02:30:36,480 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 02:30:36,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 02:30:36,481 INFO L85 PathProgramCache]: Analyzing trace with hash 1243581547, now seen corresponding path program 1 times [2024-11-19 02:30:36,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 02:30:36,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616161263] [2024-11-19 02:30:36,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:30:36,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 02:30:37,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:30:38,144 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-19 02:30:38,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 02:30:38,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616161263] [2024-11-19 02:30:38,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616161263] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 02:30:38,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [685885510] [2024-11-19 02:30:38,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:30:38,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 02:30:38,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 02:30:38,148 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 02:30:38,149 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-19 02:30:40,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:30:40,405 INFO L255 TraceCheckSpWp]: Trace formula consists of 1768 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-19 02:30:40,411 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 02:30:40,905 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-19 02:30:40,905 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 02:30:41,513 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-19 02:30:41,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [685885510] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-19 02:30:41,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-19 02:30:41,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [4, 7] total 13 [2024-11-19 02:30:41,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710275306] [2024-11-19 02:30:41,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 02:30:41,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 02:30:41,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 02:30:41,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 02:30:41,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2024-11-19 02:30:41,516 INFO L87 Difference]: Start difference. First operand 857 states and 1074 transitions. Second operand has 8 states, 8 states have (on average 9.125) internal successors, (73), 8 states have internal predecessors, (73), 5 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-19 02:30:45,536 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-19 02:30:47,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 02:30:47,394 INFO L93 Difference]: Finished difference Result 2323 states and 2906 transitions. [2024-11-19 02:30:47,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 02:30:47,395 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 8 states have internal predecessors, (73), 5 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 117 [2024-11-19 02:30:47,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 02:30:47,406 INFO L225 Difference]: With dead ends: 2323 [2024-11-19 02:30:47,406 INFO L226 Difference]: Without dead ends: 1847 [2024-11-19 02:30:47,410 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 223 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-11-19 02:30:47,411 INFO L432 NwaCegarLoop]: 299 mSDtfsCounter, 615 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 123 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 619 SdHoareTripleChecker+Valid, 878 SdHoareTripleChecker+Invalid, 494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2024-11-19 02:30:47,411 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [619 Valid, 878 Invalid, 494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 370 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2024-11-19 02:30:47,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1847 states. [2024-11-19 02:30:47,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1847 to 1731. [2024-11-19 02:30:47,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1731 states, 1392 states have (on average 1.2104885057471264) internal successors, (1685), 1395 states have internal predecessors, (1685), 214 states have call successors, (214), 102 states have call predecessors, (214), 124 states have return successors, (279), 233 states have call predecessors, (279), 208 states have call successors, (279) [2024-11-19 02:30:47,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1731 states to 1731 states and 2178 transitions. [2024-11-19 02:30:47,489 INFO L78 Accepts]: Start accepts. Automaton has 1731 states and 2178 transitions. Word has length 117 [2024-11-19 02:30:47,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 02:30:47,490 INFO L471 AbstractCegarLoop]: Abstraction has 1731 states and 2178 transitions. [2024-11-19 02:30:47,490 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 8 states have internal predecessors, (73), 5 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-19 02:30:47,490 INFO L276 IsEmpty]: Start isEmpty. Operand 1731 states and 2178 transitions. [2024-11-19 02:30:47,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-19 02:30:47,492 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 02:30:47,492 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 02:30:47,517 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-19 02:30:47,693 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-19 02:30:47,693 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 02:30:47,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 02:30:47,693 INFO L85 PathProgramCache]: Analyzing trace with hash -1877314354, now seen corresponding path program 1 times [2024-11-19 02:30:47,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 02:30:47,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520790746] [2024-11-19 02:30:47,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:30:47,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 02:30:48,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:30:49,722 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-19 02:30:49,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 02:30:49,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520790746] [2024-11-19 02:30:49,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520790746] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 02:30:49,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 02:30:49,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 02:30:49,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696446642] [2024-11-19 02:30:49,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 02:30:49,724 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 02:30:49,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 02:30:49,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 02:30:49,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 02:30:49,725 INFO L87 Difference]: Start difference. First operand 1731 states and 2178 transitions. Second operand has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-19 02:30:49,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 02:30:49,805 INFO L93 Difference]: Finished difference Result 2457 states and 3088 transitions. [2024-11-19 02:30:49,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 02:30:49,806 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 140 [2024-11-19 02:30:49,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 02:30:49,812 INFO L225 Difference]: With dead ends: 2457 [2024-11-19 02:30:49,813 INFO L226 Difference]: Without dead ends: 937 [2024-11-19 02:30:49,817 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 02:30:49,818 INFO L432 NwaCegarLoop]: 238 mSDtfsCounter, 0 mSDsluCounter, 470 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 708 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 02:30:49,818 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 708 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 02:30:49,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 937 states. [2024-11-19 02:30:49,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 937 to 937. [2024-11-19 02:30:49,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 937 states, 752 states have (on average 1.2007978723404256) internal successors, (903), 753 states have internal predecessors, (903), 116 states have call successors, (116), 57 states have call predecessors, (116), 68 states have return successors, (149), 126 states have call predecessors, (149), 111 states have call successors, (149) [2024-11-19 02:30:49,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 937 states to 937 states and 1168 transitions. [2024-11-19 02:30:49,862 INFO L78 Accepts]: Start accepts. Automaton has 937 states and 1168 transitions. Word has length 140 [2024-11-19 02:30:49,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 02:30:49,863 INFO L471 AbstractCegarLoop]: Abstraction has 937 states and 1168 transitions. [2024-11-19 02:30:49,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-19 02:30:49,863 INFO L276 IsEmpty]: Start isEmpty. Operand 937 states and 1168 transitions. [2024-11-19 02:30:49,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-19 02:30:49,865 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 02:30:49,865 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 02:30:49,866 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-19 02:30:49,866 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 02:30:49,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 02:30:49,866 INFO L85 PathProgramCache]: Analyzing trace with hash 1503890095, now seen corresponding path program 1 times [2024-11-19 02:30:49,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 02:30:49,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223002754] [2024-11-19 02:30:49,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:30:49,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 02:30:51,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:30:51,700 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-19 02:30:51,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 02:30:51,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223002754] [2024-11-19 02:30:51,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223002754] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 02:30:51,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 02:30:51,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 02:30:51,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297611017] [2024-11-19 02:30:51,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 02:30:51,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 02:30:51,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 02:30:51,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 02:30:51,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 02:30:51,703 INFO L87 Difference]: Start difference. First operand 937 states and 1168 transitions. Second operand has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 4 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-19 02:30:55,722 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-19 02:30:56,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 02:30:56,142 INFO L93 Difference]: Finished difference Result 1508 states and 1881 transitions. [2024-11-19 02:30:56,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 02:30:56,143 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 4 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 140 [2024-11-19 02:30:56,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 02:30:56,151 INFO L225 Difference]: With dead ends: 1508 [2024-11-19 02:30:56,151 INFO L226 Difference]: Without dead ends: 1503 [2024-11-19 02:30:56,152 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 02:30:56,153 INFO L432 NwaCegarLoop]: 287 mSDtfsCounter, 216 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 672 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-11-19 02:30:56,153 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 672 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 79 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2024-11-19 02:30:56,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1503 states. [2024-11-19 02:30:56,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1503 to 1466. [2024-11-19 02:30:56,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1466 states, 1178 states have (on average 1.197792869269949) internal successors, (1411), 1175 states have internal predecessors, (1411), 180 states have call successors, (180), 87 states have call predecessors, (180), 107 states have return successors, (245), 203 states have call predecessors, (245), 175 states have call successors, (245) [2024-11-19 02:30:56,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1466 states to 1466 states and 1836 transitions. [2024-11-19 02:30:56,214 INFO L78 Accepts]: Start accepts. Automaton has 1466 states and 1836 transitions. Word has length 140 [2024-11-19 02:30:56,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 02:30:56,218 INFO L471 AbstractCegarLoop]: Abstraction has 1466 states and 1836 transitions. [2024-11-19 02:30:56,219 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 4 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-19 02:30:56,219 INFO L276 IsEmpty]: Start isEmpty. Operand 1466 states and 1836 transitions. [2024-11-19 02:30:56,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-19 02:30:56,220 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 02:30:56,220 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 02:30:56,221 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-19 02:30:56,221 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 02:30:56,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 02:30:56,221 INFO L85 PathProgramCache]: Analyzing trace with hash 1339835091, now seen corresponding path program 1 times [2024-11-19 02:30:56,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 02:30:56,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532565726] [2024-11-19 02:30:56,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:30:56,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 02:30:57,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:30:57,784 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-11-19 02:30:57,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 02:30:57,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532565726] [2024-11-19 02:30:57,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532565726] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 02:30:57,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 02:30:57,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 02:30:57,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309469865] [2024-11-19 02:30:57,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 02:30:57,786 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 02:30:57,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 02:30:57,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 02:30:57,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 02:30:57,787 INFO L87 Difference]: Start difference. First operand 1466 states and 1836 transitions. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-19 02:30:57,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 02:30:57,899 INFO L93 Difference]: Finished difference Result 1510 states and 1882 transitions. [2024-11-19 02:30:57,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 02:30:57,901 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 153 [2024-11-19 02:30:57,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 02:30:57,913 INFO L225 Difference]: With dead ends: 1510 [2024-11-19 02:30:57,913 INFO L226 Difference]: Without dead ends: 1491 [2024-11-19 02:30:57,915 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-19 02:30:57,915 INFO L432 NwaCegarLoop]: 253 mSDtfsCounter, 235 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 02:30:57,915 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 515 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 02:30:57,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1491 states. [2024-11-19 02:30:57,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1491 to 1472. [2024-11-19 02:30:57,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1472 states, 1184 states have (on average 1.193412162162162) internal successors, (1413), 1181 states have internal predecessors, (1413), 180 states have call successors, (180), 87 states have call predecessors, (180), 107 states have return successors, (245), 203 states have call predecessors, (245), 175 states have call successors, (245) [2024-11-19 02:30:57,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1472 states to 1472 states and 1838 transitions. [2024-11-19 02:30:57,987 INFO L78 Accepts]: Start accepts. Automaton has 1472 states and 1838 transitions. Word has length 153 [2024-11-19 02:30:57,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 02:30:57,988 INFO L471 AbstractCegarLoop]: Abstraction has 1472 states and 1838 transitions. [2024-11-19 02:30:57,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-19 02:30:57,988 INFO L276 IsEmpty]: Start isEmpty. Operand 1472 states and 1838 transitions. [2024-11-19 02:30:57,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-19 02:30:57,991 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 02:30:57,991 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 02:30:57,992 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-19 02:30:57,992 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 02:30:57,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 02:30:57,992 INFO L85 PathProgramCache]: Analyzing trace with hash 994529226, now seen corresponding path program 1 times [2024-11-19 02:30:57,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 02:30:57,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757838635] [2024-11-19 02:30:57,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:30:57,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 02:30:59,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat