./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 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../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-803cd42-m [2024-11-22 14:29:18,473 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 14:29:18,535 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-22 14:29:18,540 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 14:29:18,541 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 14:29:18,560 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 14:29:18,561 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 14:29:18,561 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 14:29:18,562 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 14:29:18,563 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 14:29:18,563 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 14:29:18,564 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 14:29:18,564 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 14:29:18,564 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 14:29:18,566 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 14:29:18,566 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 14:29:18,566 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 14:29:18,566 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 14:29:18,567 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 14:29:18,567 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 14:29:18,567 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 14:29:18,571 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 14:29:18,571 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 14:29:18,571 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 14:29:18,572 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 14:29:18,572 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 14:29:18,572 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 14:29:18,572 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 14:29:18,572 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 14:29:18,572 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 14:29:18,573 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 14:29:18,573 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 14:29:18,573 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 14:29:18,573 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 14:29:18,573 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 14:29:18,573 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 14:29:18,582 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 14:29:18,583 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 14:29:18,584 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 14:29:18,584 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7325716246446e6137919cda7fc42ef01fc613ff512d250d81e88f25c6debe0a [2024-11-22 14:29:18,804 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 14:29:18,834 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 14:29:18,837 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 14:29:18,839 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 14:29:18,839 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 14:29:18,840 INFO L431 ainManager$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 [2024-11-22 14:29:20,133 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 14:29:20,459 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 14:29:20,460 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 [2024-11-22 14:29:20,493 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c6a7c44a/2e043a56678049afa0eb4fa95ddacae3/FLAGea978f72a [2024-11-22 14:29:20,513 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c6a7c44a/2e043a56678049afa0eb4fa95ddacae3 [2024-11-22 14:29:20,515 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 14:29:20,517 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 14:29:20,519 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 14:29:20,520 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 14:29:20,524 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 14:29:20,525 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:29:20" (1/1) ... [2024-11-22 14:29:20,527 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39c38f5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:29:20, skipping insertion in model container [2024-11-22 14:29:20,527 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:29:20" (1/1) ... [2024-11-22 14:29:20,596 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 14:29:21,303 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] [2024-11-22 14:29:21,351 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 14:29:21,387 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 14:29:21,559 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] [2024-11-22 14:29:21,586 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 14:29:21,626 INFO L204 MainTranslator]: Completed translation [2024-11-22 14:29:21,627 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:29:21 WrapperNode [2024-11-22 14:29:21,627 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 14:29:21,628 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 14:29:21,628 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 14:29:21,628 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 14:29:21,634 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:29:21" (1/1) ... [2024-11-22 14:29:21,664 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:29:21" (1/1) ... [2024-11-22 14:29:21,728 INFO L138 Inliner]: procedures = 78, calls = 266, calls flagged for inlining = 29, calls inlined = 26, statements flattened = 1024 [2024-11-22 14:29:21,728 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 14:29:21,729 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 14:29:21,729 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 14:29:21,729 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 14:29:21,740 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:29:21" (1/1) ... [2024-11-22 14:29:21,741 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:29:21" (1/1) ... [2024-11-22 14:29:21,750 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:29:21" (1/1) ... [2024-11-22 14:29:21,805 INFO L175 MemorySlicer]: Split 160 memory accesses to 6 slices as follows [2, 82, 6, 8, 42, 20]. 51 percent of accesses are in the largest equivalence class. The 23 initializations are split as follows [2, 6, 6, 8, 0, 1]. The 103 writes are split as follows [0, 42, 0, 0, 42, 19]. [2024-11-22 14:29:21,806 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:29:21" (1/1) ... [2024-11-22 14:29:21,806 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:29:21" (1/1) ... [2024-11-22 14:29:21,839 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:29:21" (1/1) ... [2024-11-22 14:29:21,851 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:29:21" (1/1) ... [2024-11-22 14:29:21,860 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:29:21" (1/1) ... [2024-11-22 14:29:21,868 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:29:21" (1/1) ... [2024-11-22 14:29:21,883 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 14:29:21,884 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 14:29:21,884 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 14:29:21,884 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 14:29:21,885 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:29:21" (1/1) ... [2024-11-22 14:29:21,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 14:29:21,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 14:29:21,923 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) [2024-11-22 14:29:21,927 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 [2024-11-22 14:29:21,967 INFO L130 BoogieDeclarations]: Found specification of procedure kbtab_init [2024-11-22 14:29:21,967 INFO L138 BoogieDeclarations]: Found implementation of procedure kbtab_init [2024-11-22 14:29:21,967 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 14:29:21,967 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2024-11-22 14:29:21,967 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2024-11-22 14:29:21,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-22 14:29:21,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-22 14:29:21,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-22 14:29:21,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-22 14:29:21,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-22 14:29:21,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-22 14:29:21,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-22 14:29:21,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-22 14:29:21,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-22 14:29:21,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-22 14:29:21,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-22 14:29:21,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-22 14:29:21,969 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2024-11-22 14:29:21,969 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2024-11-22 14:29:21,969 INFO L130 BoogieDeclarations]: Found specification of procedure kbtab_exit [2024-11-22 14:29:21,969 INFO L138 BoogieDeclarations]: Found implementation of procedure kbtab_exit [2024-11-22 14:29:21,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-22 14:29:21,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-22 14:29:21,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-22 14:29:21,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-22 14:29:21,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-22 14:29:21,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-22 14:29:21,971 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2024-11-22 14:29:21,972 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2024-11-22 14:29:21,972 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-22 14:29:21,972 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-22 14:29:21,972 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-22 14:29:21,972 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-22 14:29:21,972 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-22 14:29:21,972 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-22 14:29:21,972 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-22 14:29:21,972 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-22 14:29:21,972 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-22 14:29:21,972 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-22 14:29:21,972 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-22 14:29:21,972 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-22 14:29:21,973 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2024-11-22 14:29:21,973 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2024-11-22 14:29:21,973 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-22 14:29:21,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-22 14:29:21,973 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2024-11-22 14:29:21,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2024-11-22 14:29:21,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-22 14:29:21,973 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2024-11-22 14:29:21,973 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2024-11-22 14:29:21,973 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-22 14:29:21,973 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-22 14:29:21,973 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-22 14:29:21,973 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-22 14:29:21,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-22 14:29:21,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-22 14:29:21,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-22 14:29:21,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-22 14:29:21,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-22 14:29:21,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-22 14:29:21,974 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2024-11-22 14:29:21,974 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2024-11-22 14:29:21,974 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume_stop [2024-11-22 14:29:21,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume_stop [2024-11-22 14:29:21,974 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2024-11-22 14:29:21,974 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2024-11-22 14:29:21,974 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_pointer [2024-11-22 14:29:21,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undefined_pointer [2024-11-22 14:29:21,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 14:29:21,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-22 14:29:21,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-22 14:29:21,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-22 14:29:21,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-22 14:29:21,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-22 14:29:21,974 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-22 14:29:21,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 14:29:21,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 14:29:22,192 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 14:29:22,194 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 14:29:22,314 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_assume_stopFINAL: assume true; [2024-11-22 14:29:22,334 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-22 14:29:27,136 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume false; [2024-11-22 14:29:27,136 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume !false; [2024-11-22 14:29:27,184 INFO L? ?]: Removed 279 outVars from TransFormulas that were not future-live. [2024-11-22 14:29:27,184 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 14:29:27,196 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 14:29:27,197 INFO L316 CfgBuilder]: Removed 6 assume(true) statements. [2024-11-22 14:29:27,197 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:29:27 BoogieIcfgContainer [2024-11-22 14:29:27,199 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 14:29:27,200 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 14:29:27,200 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 14:29:27,202 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 14:29:27,203 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:29:20" (1/3) ... [2024-11-22 14:29:27,203 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75ef68c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:29:27, skipping insertion in model container [2024-11-22 14:29:27,203 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:29:21" (2/3) ... [2024-11-22 14:29:27,203 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75ef68c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:29:27, skipping insertion in model container [2024-11-22 14:29:27,203 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:29:27" (3/3) ... [2024-11-22 14:29:27,205 INFO L112 eAbstractionObserver]: Analyzing ICFG usb_urb-drivers-input-tablet-kbtab.ko.cil.out.i [2024-11-22 14:29:27,218 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 14:29:27,218 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 14:29:27,276 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 14:29:27,283 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;@338d6bad, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 14:29:27,284 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 14:29:27,289 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) [2024-11-22 14:29:27,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-22 14:29:27,295 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 14:29:27,296 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 14:29:27,296 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 14:29:27,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 14:29:27,301 INFO L85 PathProgramCache]: Analyzing trace with hash -244939124, now seen corresponding path program 1 times [2024-11-22 14:29:27,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 14:29:27,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640348201] [2024-11-22 14:29:27,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 14:29:27,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 14:29:28,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 14:29:28,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 14:29:28,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 14:29:28,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640348201] [2024-11-22 14:29:28,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640348201] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 14:29:28,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 14:29:28,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 14:29:28,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368152981] [2024-11-22 14:29:28,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 14:29:28,725 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 14:29:28,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 14:29:28,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 14:29:28,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 14:29:28,741 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) [2024-11-22 14:29:28,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 14:29:28,835 INFO L93 Difference]: Finished difference Result 566 states and 784 transitions. [2024-11-22 14:29:28,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 14:29:28,838 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 [2024-11-22 14:29:28,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 14:29:28,847 INFO L225 Difference]: With dead ends: 566 [2024-11-22 14:29:28,847 INFO L226 Difference]: Without dead ends: 368 [2024-11-22 14:29:28,850 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 [2024-11-22 14:29:28,852 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 [2024-11-22 14:29:28,853 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] [2024-11-22 14:29:28,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2024-11-22 14:29:28,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 364. [2024-11-22 14:29:28,895 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) [2024-11-22 14:29:28,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 457 transitions. [2024-11-22 14:29:28,902 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 457 transitions. Word has length 17 [2024-11-22 14:29:28,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 14:29:28,903 INFO L471 AbstractCegarLoop]: Abstraction has 364 states and 457 transitions. [2024-11-22 14:29:28,903 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) [2024-11-22 14:29:28,903 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 457 transitions. [2024-11-22 14:29:28,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-22 14:29:28,904 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 14:29:28,904 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 14:29:28,904 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 14:29:28,904 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 14:29:28,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 14:29:28,905 INFO L85 PathProgramCache]: Analyzing trace with hash 996714932, now seen corresponding path program 1 times [2024-11-22 14:29:28,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 14:29:28,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399312814] [2024-11-22 14:29:28,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 14:29:28,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 14:29:29,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 14:29:30,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 14:29:30,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 14:29:30,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399312814] [2024-11-22 14:29:30,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399312814] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 14:29:30,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 14:29:30,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 14:29:30,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29218803] [2024-11-22 14:29:30,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 14:29:30,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 14:29:30,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 14:29:30,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 14:29:30,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 14:29:30,038 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) [2024-11-22 14:29:30,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 14:29:30,115 INFO L93 Difference]: Finished difference Result 1053 states and 1332 transitions. [2024-11-22 14:29:30,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 14:29:30,116 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 [2024-11-22 14:29:30,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 14:29:30,120 INFO L225 Difference]: With dead ends: 1053 [2024-11-22 14:29:30,121 INFO L226 Difference]: Without dead ends: 699 [2024-11-22 14:29:30,122 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 [2024-11-22 14:29:30,128 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 [2024-11-22 14:29:30,128 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] [2024-11-22 14:29:30,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2024-11-22 14:29:30,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 692. [2024-11-22 14:29:30,184 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) [2024-11-22 14:29:30,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 871 transitions. [2024-11-22 14:29:30,191 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 871 transitions. Word has length 18 [2024-11-22 14:29:30,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 14:29:30,191 INFO L471 AbstractCegarLoop]: Abstraction has 692 states and 871 transitions. [2024-11-22 14:29:30,192 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) [2024-11-22 14:29:30,192 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 871 transitions. [2024-11-22 14:29:30,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-22 14:29:30,195 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 14:29:30,195 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] [2024-11-22 14:29:30,195 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 14:29:30,195 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 14:29:30,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 14:29:30,196 INFO L85 PathProgramCache]: Analyzing trace with hash 2050665313, now seen corresponding path program 1 times [2024-11-22 14:29:30,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 14:29:30,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252573930] [2024-11-22 14:29:30,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 14:29:30,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 14:29:31,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 14:29:31,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 14:29:31,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 14:29:31,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252573930] [2024-11-22 14:29:31,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252573930] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 14:29:31,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 14:29:31,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 14:29:31,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580585244] [2024-11-22 14:29:31,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 14:29:31,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 14:29:31,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 14:29:31,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 14:29:31,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 14:29:31,503 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) [2024-11-22 14:29:31,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 14:29:31,578 INFO L93 Difference]: Finished difference Result 1371 states and 1728 transitions. [2024-11-22 14:29:31,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 14:29:31,580 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 [2024-11-22 14:29:31,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 14:29:31,585 INFO L225 Difference]: With dead ends: 1371 [2024-11-22 14:29:31,586 INFO L226 Difference]: Without dead ends: 692 [2024-11-22 14:29:31,588 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 [2024-11-22 14:29:31,590 INFO L432 NwaCegarLoop]: 240 mSDtfsCounter, 0 mSDsluCounter, 953 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 14:29:31,592 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1193 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 14:29:31,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 692 states. [2024-11-22 14:29:31,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 692 to 692. [2024-11-22 14:29:31,619 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) [2024-11-22 14:29:31,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 870 transitions. [2024-11-22 14:29:31,623 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 870 transitions. Word has length 51 [2024-11-22 14:29:31,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 14:29:31,623 INFO L471 AbstractCegarLoop]: Abstraction has 692 states and 870 transitions. [2024-11-22 14:29:31,623 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) [2024-11-22 14:29:31,624 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 870 transitions. [2024-11-22 14:29:31,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-22 14:29:31,625 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 14:29:31,625 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] [2024-11-22 14:29:31,625 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 14:29:31,625 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 14:29:31,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 14:29:31,626 INFO L85 PathProgramCache]: Analyzing trace with hash 738798770, now seen corresponding path program 1 times [2024-11-22 14:29:31,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 14:29:31,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359073818] [2024-11-22 14:29:31,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 14:29:31,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 14:29:32,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 14:29:32,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 14:29:32,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 14:29:32,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359073818] [2024-11-22 14:29:32,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359073818] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 14:29:32,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 14:29:32,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 14:29:32,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296398797] [2024-11-22 14:29:32,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 14:29:32,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 14:29:32,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 14:29:32,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 14:29:32,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 14:29:32,699 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) [2024-11-22 14:29:32,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 14:29:32,770 INFO L93 Difference]: Finished difference Result 1414 states and 1797 transitions. [2024-11-22 14:29:32,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 14:29:32,771 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 [2024-11-22 14:29:32,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 14:29:32,776 INFO L225 Difference]: With dead ends: 1414 [2024-11-22 14:29:32,777 INFO L226 Difference]: Without dead ends: 739 [2024-11-22 14:29:32,779 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 [2024-11-22 14:29:32,780 INFO L432 NwaCegarLoop]: 238 mSDtfsCounter, 107 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 14:29:32,781 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 359 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 14:29:32,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 739 states. [2024-11-22 14:29:32,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 739 to 727. [2024-11-22 14:29:32,806 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) [2024-11-22 14:29:32,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 727 states to 727 states and 916 transitions. [2024-11-22 14:29:32,810 INFO L78 Accepts]: Start accepts. Automaton has 727 states and 916 transitions. Word has length 56 [2024-11-22 14:29:32,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 14:29:32,810 INFO L471 AbstractCegarLoop]: Abstraction has 727 states and 916 transitions. [2024-11-22 14:29:32,811 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) [2024-11-22 14:29:32,811 INFO L276 IsEmpty]: Start isEmpty. Operand 727 states and 916 transitions. [2024-11-22 14:29:32,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-22 14:29:32,813 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 14:29:32,813 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] [2024-11-22 14:29:32,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 14:29:32,814 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 14:29:32,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 14:29:32,814 INFO L85 PathProgramCache]: Analyzing trace with hash -581652613, now seen corresponding path program 1 times [2024-11-22 14:29:32,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 14:29:32,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899359233] [2024-11-22 14:29:32,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 14:29:32,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 14:29:33,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 14:29:34,551 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-22 14:29:34,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 14:29:34,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899359233] [2024-11-22 14:29:34,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899359233] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 14:29:34,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [990994831] [2024-11-22 14:29:34,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 14:29:34,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 14:29:34,552 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 14:29:34,554 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) [2024-11-22 14:29:34,555 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 14:29:35,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 14:29:35,951 INFO L255 TraceCheckSpWp]: Trace formula consists of 1683 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-22 14:29:35,959 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 14:29:36,095 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-22 14:29:36,095 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 14:29:36,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [990994831] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 14:29:36,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 14:29:36,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2024-11-22 14:29:36,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895903083] [2024-11-22 14:29:36,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 14:29:36,096 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 14:29:36,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 14:29:36,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 14:29:36,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-22 14:29:36,097 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) [2024-11-22 14:29:36,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 14:29:36,154 INFO L93 Difference]: Finished difference Result 1193 states and 1500 transitions. [2024-11-22 14:29:36,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 14:29:36,154 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 [2024-11-22 14:29:36,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 14:29:36,157 INFO L225 Difference]: With dead ends: 1193 [2024-11-22 14:29:36,157 INFO L226 Difference]: Without dead ends: 484 [2024-11-22 14:29:36,159 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 [2024-11-22 14:29:36,159 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 [2024-11-22 14:29:36,159 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] [2024-11-22 14:29:36,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2024-11-22 14:29:36,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 484. [2024-11-22 14:29:36,175 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) [2024-11-22 14:29:36,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 599 transitions. [2024-11-22 14:29:36,177 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 599 transitions. Word has length 95 [2024-11-22 14:29:36,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 14:29:36,179 INFO L471 AbstractCegarLoop]: Abstraction has 484 states and 599 transitions. [2024-11-22 14:29:36,179 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) [2024-11-22 14:29:36,179 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 599 transitions. [2024-11-22 14:29:36,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-22 14:29:36,183 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 14:29:36,183 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] [2024-11-22 14:29:36,197 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-22 14:29:36,384 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 [2024-11-22 14:29:36,385 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 14:29:36,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 14:29:36,386 INFO L85 PathProgramCache]: Analyzing trace with hash 45648230, now seen corresponding path program 1 times [2024-11-22 14:29:36,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 14:29:36,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27450407] [2024-11-22 14:29:36,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 14:29:36,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 14:29:37,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 14:29:38,049 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 14:29:38,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 14:29:38,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27450407] [2024-11-22 14:29:38,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27450407] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 14:29:38,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1466532030] [2024-11-22 14:29:38,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 14:29:38,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 14:29:38,050 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 14:29:38,054 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) [2024-11-22 14:29:38,055 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 14:29:39,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 14:29:39,449 INFO L255 TraceCheckSpWp]: Trace formula consists of 1623 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-22 14:29:39,456 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 14:29:39,695 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-22 14:29:39,697 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 14:29:39,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1466532030] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 14:29:39,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 14:29:39,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [9] total 12 [2024-11-22 14:29:39,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722949372] [2024-11-22 14:29:39,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 14:29:39,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 14:29:39,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 14:29:39,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 14:29:39,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-22 14:29:39,701 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) [2024-11-22 14:29:39,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 14:29:39,977 INFO L93 Difference]: Finished difference Result 986 states and 1231 transitions. [2024-11-22 14:29:39,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 14:29:39,978 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 [2024-11-22 14:29:39,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 14:29:39,982 INFO L225 Difference]: With dead ends: 986 [2024-11-22 14:29:39,982 INFO L226 Difference]: Without dead ends: 520 [2024-11-22 14:29:39,983 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 [2024-11-22 14:29:39,983 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 [2024-11-22 14:29:39,984 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] [2024-11-22 14:29:39,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2024-11-22 14:29:39,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 517. [2024-11-22 14:29:39,995 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) [2024-11-22 14:29:39,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 644 transitions. [2024-11-22 14:29:39,998 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 644 transitions. Word has length 92 [2024-11-22 14:29:39,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 14:29:39,998 INFO L471 AbstractCegarLoop]: Abstraction has 517 states and 644 transitions. [2024-11-22 14:29:39,998 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) [2024-11-22 14:29:39,998 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 644 transitions. [2024-11-22 14:29:39,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-22 14:29:39,999 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 14:29:39,999 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] [2024-11-22 14:29:40,010 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-22 14:29:40,200 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 [2024-11-22 14:29:40,201 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 14:29:40,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 14:29:40,201 INFO L85 PathProgramCache]: Analyzing trace with hash -1137699067, now seen corresponding path program 1 times [2024-11-22 14:29:40,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 14:29:40,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244228638] [2024-11-22 14:29:40,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 14:29:40,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 14:29:41,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 14:29:41,640 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 14:29:41,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 14:29:41,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244228638] [2024-11-22 14:29:41,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244228638] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 14:29:41,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1366942646] [2024-11-22 14:29:41,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 14:29:41,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 14:29:41,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 14:29:41,645 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) [2024-11-22 14:29:41,646 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 14:29:42,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 14:29:42,891 INFO L255 TraceCheckSpWp]: Trace formula consists of 1632 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-22 14:29:42,896 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 14:29:42,986 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 8 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-22 14:29:42,986 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 14:29:43,306 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 14:29:43,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1366942646] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 14:29:43,307 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 14:29:43,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 9 [2024-11-22 14:29:43,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521581199] [2024-11-22 14:29:43,307 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 14:29:43,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 14:29:43,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 14:29:43,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 14:29:43,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-22 14:29:43,308 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) [2024-11-22 14:29:43,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 14:29:43,491 INFO L93 Difference]: Finished difference Result 1055 states and 1324 transitions. [2024-11-22 14:29:43,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 14:29:43,493 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 [2024-11-22 14:29:43,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 14:29:43,496 INFO L225 Difference]: With dead ends: 1055 [2024-11-22 14:29:43,496 INFO L226 Difference]: Without dead ends: 556 [2024-11-22 14:29:43,497 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-22 14:29:43,498 INFO L432 NwaCegarLoop]: 242 mSDtfsCounter, 3 mSDsluCounter, 1666 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2024-11-22 14:29:43,498 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] [2024-11-22 14:29:43,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2024-11-22 14:29:43,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 532. [2024-11-22 14:29:43,513 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) [2024-11-22 14:29:43,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 665 transitions. [2024-11-22 14:29:43,515 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 665 transitions. Word has length 92 [2024-11-22 14:29:43,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 14:29:43,516 INFO L471 AbstractCegarLoop]: Abstraction has 532 states and 665 transitions. [2024-11-22 14:29:43,517 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) [2024-11-22 14:29:43,517 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 665 transitions. [2024-11-22 14:29:43,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-22 14:29:43,518 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 14:29:43,518 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] [2024-11-22 14:29:43,531 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-22 14:29:43,720 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 [2024-11-22 14:29:43,721 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 14:29:43,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 14:29:43,721 INFO L85 PathProgramCache]: Analyzing trace with hash 1990571910, now seen corresponding path program 2 times [2024-11-22 14:29:43,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 14:29:43,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004186129] [2024-11-22 14:29:43,721 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 14:29:43,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 14:29:44,697 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-22 14:29:44,698 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 14:29:45,134 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-22 14:29:45,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 14:29:45,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004186129] [2024-11-22 14:29:45,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004186129] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 14:29:45,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 14:29:45,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 14:29:45,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709394239] [2024-11-22 14:29:45,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 14:29:45,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 14:29:45,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 14:29:45,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 14:29:45,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 14:29:45,136 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) [2024-11-22 14:29:45,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 14:29:45,198 INFO L93 Difference]: Finished difference Result 947 states and 1194 transitions. [2024-11-22 14:29:45,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 14:29:45,199 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 [2024-11-22 14:29:45,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 14:29:45,201 INFO L225 Difference]: With dead ends: 947 [2024-11-22 14:29:45,201 INFO L226 Difference]: Without dead ends: 547 [2024-11-22 14:29:45,202 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 [2024-11-22 14:29:45,203 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 [2024-11-22 14:29:45,203 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] [2024-11-22 14:29:45,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2024-11-22 14:29:45,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 547. [2024-11-22 14:29:45,215 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) [2024-11-22 14:29:45,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 682 transitions. [2024-11-22 14:29:45,217 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 682 transitions. Word has length 92 [2024-11-22 14:29:45,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 14:29:45,218 INFO L471 AbstractCegarLoop]: Abstraction has 547 states and 682 transitions. [2024-11-22 14:29:45,218 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) [2024-11-22 14:29:45,218 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 682 transitions. [2024-11-22 14:29:45,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-22 14:29:45,219 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 14:29:45,219 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] [2024-11-22 14:29:45,219 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 14:29:45,219 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 14:29:45,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 14:29:45,220 INFO L85 PathProgramCache]: Analyzing trace with hash 2001888037, now seen corresponding path program 1 times [2024-11-22 14:29:45,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 14:29:45,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499950050] [2024-11-22 14:29:45,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 14:29:45,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 14:29:46,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 14:29:46,496 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-22 14:29:46,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 14:29:46,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499950050] [2024-11-22 14:29:46,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499950050] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 14:29:46,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 14:29:46,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-22 14:29:46,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380572124] [2024-11-22 14:29:46,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 14:29:46,498 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 14:29:46,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 14:29:46,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 14:29:46,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-22 14:29:46,498 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) [2024-11-22 14:29:46,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 14:29:46,615 INFO L93 Difference]: Finished difference Result 957 states and 1203 transitions. [2024-11-22 14:29:46,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 14:29:46,616 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 [2024-11-22 14:29:46,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 14:29:46,618 INFO L225 Difference]: With dead ends: 957 [2024-11-22 14:29:46,618 INFO L226 Difference]: Without dead ends: 547 [2024-11-22 14:29:46,620 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 [2024-11-22 14:29:46,621 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 [2024-11-22 14:29:46,621 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] [2024-11-22 14:29:46,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2024-11-22 14:29:46,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 547. [2024-11-22 14:29:46,635 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) [2024-11-22 14:29:46,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 680 transitions. [2024-11-22 14:29:46,641 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 680 transitions. Word has length 92 [2024-11-22 14:29:46,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 14:29:46,642 INFO L471 AbstractCegarLoop]: Abstraction has 547 states and 680 transitions. [2024-11-22 14:29:46,642 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) [2024-11-22 14:29:46,642 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 680 transitions. [2024-11-22 14:29:46,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-22 14:29:46,643 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 14:29:46,643 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] [2024-11-22 14:29:46,643 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 14:29:46,644 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 14:29:46,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 14:29:46,644 INFO L85 PathProgramCache]: Analyzing trace with hash -590762086, now seen corresponding path program 1 times [2024-11-22 14:29:46,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 14:29:46,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903168534] [2024-11-22 14:29:46,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 14:29:46,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 14:29:47,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 14:29:47,730 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-22 14:29:47,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 14:29:47,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903168534] [2024-11-22 14:29:47,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903168534] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 14:29:47,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 14:29:47,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 14:29:47,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194963249] [2024-11-22 14:29:47,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 14:29:47,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 14:29:47,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 14:29:47,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 14:29:47,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 14:29:47,732 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) [2024-11-22 14:29:51,749 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-22 14:29:52,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 14:29:52,069 INFO L93 Difference]: Finished difference Result 962 states and 1206 transitions. [2024-11-22 14:29:52,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 14:29:52,070 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 [2024-11-22 14:29:52,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 14:29:52,073 INFO L225 Difference]: With dead ends: 962 [2024-11-22 14:29:52,074 INFO L226 Difference]: Without dead ends: 959 [2024-11-22 14:29:52,074 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 [2024-11-22 14:29:52,074 INFO L432 NwaCegarLoop]: 345 mSDtfsCounter, 309 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s 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, 4.3s IncrementalHoareTripleChecker+Time [2024-11-22 14:29:52,075 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [309 Valid, 745 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 95 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2024-11-22 14:29:52,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 959 states. [2024-11-22 14:29:52,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 959 to 931. [2024-11-22 14:29:52,092 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) [2024-11-22 14:29:52,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 931 states to 931 states and 1175 transitions. [2024-11-22 14:29:52,097 INFO L78 Accepts]: Start accepts. Automaton has 931 states and 1175 transitions. Word has length 95 [2024-11-22 14:29:52,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 14:29:52,097 INFO L471 AbstractCegarLoop]: Abstraction has 931 states and 1175 transitions. [2024-11-22 14:29:52,097 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) [2024-11-22 14:29:52,097 INFO L276 IsEmpty]: Start isEmpty. Operand 931 states and 1175 transitions. [2024-11-22 14:29:52,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-22 14:29:52,098 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 14:29:52,099 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-22 14:29:52,099 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 14:29:52,099 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 14:29:52,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 14:29:52,099 INFO L85 PathProgramCache]: Analyzing trace with hash 1934485482, now seen corresponding path program 1 times [2024-11-22 14:29:52,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 14:29:52,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025401989] [2024-11-22 14:29:52,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 14:29:52,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 14:29:52,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 14:29:53,097 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-22 14:29:53,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 14:29:53,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025401989] [2024-11-22 14:29:53,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025401989] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 14:29:53,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 14:29:53,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 14:29:53,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938000784] [2024-11-22 14:29:53,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 14:29:53,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 14:29:53,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 14:29:53,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 14:29:53,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 14:29:53,099 INFO L87 Difference]: Start difference. First operand 931 states and 1175 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 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) [2024-11-22 14:29:57,125 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 [] [2024-11-22 14:29:57,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 14:29:57,205 INFO L93 Difference]: Finished difference Result 1856 states and 2348 transitions. [2024-11-22 14:29:57,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 14:29:57,205 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 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 [2024-11-22 14:29:57,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 14:29:57,210 INFO L225 Difference]: With dead ends: 1856 [2024-11-22 14:29:57,210 INFO L226 Difference]: Without dead ends: 910 [2024-11-22 14:29:57,211 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 [2024-11-22 14:29:57,212 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 [2024-11-22 14:29:57,212 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] [2024-11-22 14:29:57,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 910 states. [2024-11-22 14:29:57,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 910 to 883. [2024-11-22 14:29:57,233 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) [2024-11-22 14:29:57,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 1118 transitions. [2024-11-22 14:29:57,236 INFO L78 Accepts]: Start accepts. Automaton has 883 states and 1118 transitions. Word has length 105 [2024-11-22 14:29:57,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 14:29:57,236 INFO L471 AbstractCegarLoop]: Abstraction has 883 states and 1118 transitions. [2024-11-22 14:29:57,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 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) [2024-11-22 14:29:57,237 INFO L276 IsEmpty]: Start isEmpty. Operand 883 states and 1118 transitions. [2024-11-22 14:29:57,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-22 14:29:57,238 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 14:29:57,238 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] [2024-11-22 14:29:57,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 14:29:57,239 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 14:29:57,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 14:29:57,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1595221628, now seen corresponding path program 1 times [2024-11-22 14:29:57,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 14:29:57,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641028691] [2024-11-22 14:29:57,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 14:29:57,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 14:29:58,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 14:29:58,503 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-22 14:29:58,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 14:29:58,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641028691] [2024-11-22 14:29:58,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641028691] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 14:29:58,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 14:29:58,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 14:29:58,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382719885] [2024-11-22 14:29:58,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 14:29:58,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 14:29:58,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 14:29:58,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 14:29:58,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 14:29:58,505 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) [2024-11-22 14:29:58,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 14:29:58,584 INFO L93 Difference]: Finished difference Result 1309 states and 1664 transitions. [2024-11-22 14:29:58,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 14:29:58,585 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 [2024-11-22 14:29:58,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 14:29:58,590 INFO L225 Difference]: With dead ends: 1309 [2024-11-22 14:29:58,590 INFO L226 Difference]: Without dead ends: 891 [2024-11-22 14:29:58,591 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 [2024-11-22 14:29:58,592 INFO L432 NwaCegarLoop]: 244 mSDtfsCounter, 0 mSDsluCounter, 1208 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 14:29:58,592 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1452 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 14:29:58,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 891 states. [2024-11-22 14:29:58,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 891 to 891. [2024-11-22 14:29:58,609 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) [2024-11-22 14:29:58,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 891 states to 891 states and 1126 transitions. [2024-11-22 14:29:58,612 INFO L78 Accepts]: Start accepts. Automaton has 891 states and 1126 transitions. Word has length 114 [2024-11-22 14:29:58,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 14:29:58,613 INFO L471 AbstractCegarLoop]: Abstraction has 891 states and 1126 transitions. [2024-11-22 14:29:58,613 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) [2024-11-22 14:29:58,613 INFO L276 IsEmpty]: Start isEmpty. Operand 891 states and 1126 transitions. [2024-11-22 14:29:58,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-22 14:29:58,614 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 14:29:58,614 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] [2024-11-22 14:29:58,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 14:29:58,614 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 14:29:58,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 14:29:58,615 INFO L85 PathProgramCache]: Analyzing trace with hash -1066941669, now seen corresponding path program 1 times [2024-11-22 14:29:58,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 14:29:58,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842319667] [2024-11-22 14:29:58,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 14:29:58,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 14:29:59,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 14:29:59,924 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-22 14:29:59,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 14:29:59,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842319667] [2024-11-22 14:29:59,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842319667] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 14:29:59,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 14:29:59,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-22 14:29:59,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231165875] [2024-11-22 14:29:59,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 14:29:59,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 14:29:59,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 14:29:59,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 14:29:59,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-22 14:29:59,926 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) [2024-11-22 14:30:00,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 14:30:00,065 INFO L93 Difference]: Finished difference Result 945 states and 1186 transitions. [2024-11-22 14:30:00,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 14:30:00,066 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 [2024-11-22 14:30:00,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 14:30:00,070 INFO L225 Difference]: With dead ends: 945 [2024-11-22 14:30:00,070 INFO L226 Difference]: Without dead ends: 895 [2024-11-22 14:30:00,071 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 [2024-11-22 14:30:00,072 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 [2024-11-22 14:30:00,072 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] [2024-11-22 14:30:00,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 895 states. [2024-11-22 14:30:00,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 895 to 895. [2024-11-22 14:30:00,092 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) [2024-11-22 14:30:00,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 895 states to 895 states and 1130 transitions. [2024-11-22 14:30:00,095 INFO L78 Accepts]: Start accepts. Automaton has 895 states and 1130 transitions. Word has length 114 [2024-11-22 14:30:00,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 14:30:00,096 INFO L471 AbstractCegarLoop]: Abstraction has 895 states and 1130 transitions. [2024-11-22 14:30:00,096 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) [2024-11-22 14:30:00,096 INFO L276 IsEmpty]: Start isEmpty. Operand 895 states and 1130 transitions. [2024-11-22 14:30:00,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-22 14:30:00,098 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 14:30:00,098 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] [2024-11-22 14:30:00,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 14:30:00,098 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 14:30:00,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 14:30:00,098 INFO L85 PathProgramCache]: Analyzing trace with hash 1932363782, now seen corresponding path program 1 times [2024-11-22 14:30:00,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 14:30:00,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952158006] [2024-11-22 14:30:00,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 14:30:00,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 14:30:00,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 14:30:01,158 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-22 14:30:01,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 14:30:01,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952158006] [2024-11-22 14:30:01,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952158006] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 14:30:01,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 14:30:01,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 14:30:01,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395267643] [2024-11-22 14:30:01,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 14:30:01,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 14:30:01,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 14:30:01,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 14:30:01,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 14:30:01,162 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) [2024-11-22 14:30:01,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 14:30:01,198 INFO L93 Difference]: Finished difference Result 1695 states and 2158 transitions. [2024-11-22 14:30:01,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 14:30:01,199 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 [2024-11-22 14:30:01,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 14:30:01,203 INFO L225 Difference]: With dead ends: 1695 [2024-11-22 14:30:01,203 INFO L226 Difference]: Without dead ends: 857 [2024-11-22 14:30:01,205 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 [2024-11-22 14:30:01,206 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 [2024-11-22 14:30:01,206 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] [2024-11-22 14:30:01,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 857 states. [2024-11-22 14:30:01,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 857 to 857. [2024-11-22 14:30:01,226 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) [2024-11-22 14:30:01,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 857 states to 857 states and 1074 transitions. [2024-11-22 14:30:01,232 INFO L78 Accepts]: Start accepts. Automaton has 857 states and 1074 transitions. Word has length 115 [2024-11-22 14:30:01,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 14:30:01,233 INFO L471 AbstractCegarLoop]: Abstraction has 857 states and 1074 transitions. [2024-11-22 14:30:01,233 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) [2024-11-22 14:30:01,233 INFO L276 IsEmpty]: Start isEmpty. Operand 857 states and 1074 transitions. [2024-11-22 14:30:01,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-22 14:30:01,234 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 14:30:01,234 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] [2024-11-22 14:30:01,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-22 14:30:01,234 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 14:30:01,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 14:30:01,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1243581547, now seen corresponding path program 1 times [2024-11-22 14:30:01,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 14:30:01,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006920894] [2024-11-22 14:30:01,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 14:30:01,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 14:30:02,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 14:30:02,385 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-22 14:30:02,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 14:30:02,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006920894] [2024-11-22 14:30:02,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006920894] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 14:30:02,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2037117285] [2024-11-22 14:30:02,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 14:30:02,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 14:30:02,386 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 14:30:02,388 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) [2024-11-22 14:30:02,389 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-22 14:30:03,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 14:30:03,840 INFO L255 TraceCheckSpWp]: Trace formula consists of 1768 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-22 14:30:03,847 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 14:30:04,444 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-22 14:30:04,444 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 14:30:04,957 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-22 14:30:04,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2037117285] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-22 14:30:04,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-22 14:30:04,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [4, 7] total 13 [2024-11-22 14:30:04,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689527208] [2024-11-22 14:30:04,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 14:30:04,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 14:30:04,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 14:30:04,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 14:30:04,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2024-11-22 14:30:04,959 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) [2024-11-22 14:30:08,976 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 [] [2024-11-22 14:30:09,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 14:30:09,831 INFO L93 Difference]: Finished difference Result 2323 states and 2906 transitions. [2024-11-22 14:30:09,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 14:30:09,831 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 [2024-11-22 14:30:09,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 14:30:09,839 INFO L225 Difference]: With dead ends: 2323 [2024-11-22 14:30:09,839 INFO L226 Difference]: Without dead ends: 1847 [2024-11-22 14:30:09,841 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 223 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-11-22 14:30:09,842 INFO L432 NwaCegarLoop]: 299 mSDtfsCounter, 615 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 123 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s 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, 4.8s IncrementalHoareTripleChecker+Time [2024-11-22 14:30:09,842 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [619 Valid, 878 Invalid, 494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 370 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2024-11-22 14:30:09,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1847 states. [2024-11-22 14:30:09,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1847 to 1731. [2024-11-22 14:30:09,882 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) [2024-11-22 14:30:09,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1731 states to 1731 states and 2178 transitions. [2024-11-22 14:30:09,887 INFO L78 Accepts]: Start accepts. Automaton has 1731 states and 2178 transitions. Word has length 117 [2024-11-22 14:30:09,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 14:30:09,888 INFO L471 AbstractCegarLoop]: Abstraction has 1731 states and 2178 transitions. [2024-11-22 14:30:09,888 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) [2024-11-22 14:30:09,888 INFO L276 IsEmpty]: Start isEmpty. Operand 1731 states and 2178 transitions. [2024-11-22 14:30:09,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-22 14:30:09,890 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 14:30:09,890 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] [2024-11-22 14:30:09,904 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-22 14:30:10,090 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 [2024-11-22 14:30:10,091 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 14:30:10,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 14:30:10,091 INFO L85 PathProgramCache]: Analyzing trace with hash -1877314354, now seen corresponding path program 1 times [2024-11-22 14:30:10,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 14:30:10,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667258919] [2024-11-22 14:30:10,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 14:30:10,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 14:30:10,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 14:30:11,538 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-22 14:30:11,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 14:30:11,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667258919] [2024-11-22 14:30:11,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667258919] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 14:30:11,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 14:30:11,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 14:30:11,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682713303] [2024-11-22 14:30:11,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 14:30:11,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 14:30:11,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 14:30:11,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 14:30:11,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 14:30:11,539 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) [2024-11-22 14:30:11,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 14:30:11,580 INFO L93 Difference]: Finished difference Result 2457 states and 3088 transitions. [2024-11-22 14:30:11,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 14:30:11,581 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 [2024-11-22 14:30:11,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 14:30:11,585 INFO L225 Difference]: With dead ends: 2457 [2024-11-22 14:30:11,585 INFO L226 Difference]: Without dead ends: 937 [2024-11-22 14:30:11,587 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 [2024-11-22 14:30:11,588 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 [2024-11-22 14:30:11,588 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] [2024-11-22 14:30:11,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 937 states. [2024-11-22 14:30:11,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 937 to 937. [2024-11-22 14:30:11,608 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) [2024-11-22 14:30:11,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 937 states to 937 states and 1168 transitions. [2024-11-22 14:30:11,611 INFO L78 Accepts]: Start accepts. Automaton has 937 states and 1168 transitions. Word has length 140 [2024-11-22 14:30:11,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 14:30:11,611 INFO L471 AbstractCegarLoop]: Abstraction has 937 states and 1168 transitions. [2024-11-22 14:30:11,611 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) [2024-11-22 14:30:11,611 INFO L276 IsEmpty]: Start isEmpty. Operand 937 states and 1168 transitions. [2024-11-22 14:30:11,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-22 14:30:11,612 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 14:30:11,612 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] [2024-11-22 14:30:11,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-22 14:30:11,612 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 14:30:11,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 14:30:11,613 INFO L85 PathProgramCache]: Analyzing trace with hash 1503890095, now seen corresponding path program 1 times [2024-11-22 14:30:11,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 14:30:11,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224107610] [2024-11-22 14:30:11,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 14:30:11,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 14:30:12,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 14:30:12,839 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-22 14:30:12,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 14:30:12,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224107610] [2024-11-22 14:30:12,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224107610] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 14:30:12,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 14:30:12,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 14:30:12,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964309165] [2024-11-22 14:30:12,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 14:30:12,840 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 14:30:12,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 14:30:12,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 14:30:12,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 14:30:12,841 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) [2024-11-22 14:30:16,855 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-22 14:30:17,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 14:30:17,082 INFO L93 Difference]: Finished difference Result 1508 states and 1881 transitions. [2024-11-22 14:30:17,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 14:30:17,082 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 [2024-11-22 14:30:17,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 14:30:17,088 INFO L225 Difference]: With dead ends: 1508 [2024-11-22 14:30:17,089 INFO L226 Difference]: Without dead ends: 1503 [2024-11-22 14:30:17,089 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 [2024-11-22 14:30:17,090 INFO L432 NwaCegarLoop]: 287 mSDtfsCounter, 216 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s 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, 4.2s IncrementalHoareTripleChecker+Time [2024-11-22 14:30:17,090 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 672 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 79 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2024-11-22 14:30:17,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1503 states. [2024-11-22 14:30:17,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1503 to 1466. [2024-11-22 14:30:17,125 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) [2024-11-22 14:30:17,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1466 states to 1466 states and 1836 transitions. [2024-11-22 14:30:17,132 INFO L78 Accepts]: Start accepts. Automaton has 1466 states and 1836 transitions. Word has length 140 [2024-11-22 14:30:17,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 14:30:17,132 INFO L471 AbstractCegarLoop]: Abstraction has 1466 states and 1836 transitions. [2024-11-22 14:30:17,133 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) [2024-11-22 14:30:17,133 INFO L276 IsEmpty]: Start isEmpty. Operand 1466 states and 1836 transitions. [2024-11-22 14:30:17,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-22 14:30:17,134 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 14:30:17,134 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] [2024-11-22 14:30:17,134 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-22 14:30:17,134 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 14:30:17,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 14:30:17,135 INFO L85 PathProgramCache]: Analyzing trace with hash 1339835091, now seen corresponding path program 1 times [2024-11-22 14:30:17,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 14:30:17,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128613134] [2024-11-22 14:30:17,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 14:30:17,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 14:30:18,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 14:30:18,182 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-11-22 14:30:18,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 14:30:18,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128613134] [2024-11-22 14:30:18,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128613134] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 14:30:18,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 14:30:18,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 14:30:18,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780367652] [2024-11-22 14:30:18,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 14:30:18,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 14:30:18,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 14:30:18,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 14:30:18,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 14:30:18,184 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) [2024-11-22 14:30:18,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 14:30:18,248 INFO L93 Difference]: Finished difference Result 1510 states and 1882 transitions. [2024-11-22 14:30:18,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 14:30:18,249 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 [2024-11-22 14:30:18,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 14:30:18,254 INFO L225 Difference]: With dead ends: 1510 [2024-11-22 14:30:18,254 INFO L226 Difference]: Without dead ends: 1491 [2024-11-22 14:30:18,255 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 [2024-11-22 14:30:18,255 INFO L432 NwaCegarLoop]: 253 mSDtfsCounter, 235 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 14:30:18,256 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 515 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 14:30:18,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1491 states. [2024-11-22 14:30:18,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1491 to 1472. [2024-11-22 14:30:18,292 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) [2024-11-22 14:30:18,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1472 states to 1472 states and 1838 transitions. [2024-11-22 14:30:18,296 INFO L78 Accepts]: Start accepts. Automaton has 1472 states and 1838 transitions. Word has length 153 [2024-11-22 14:30:18,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 14:30:18,297 INFO L471 AbstractCegarLoop]: Abstraction has 1472 states and 1838 transitions. [2024-11-22 14:30:18,298 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) [2024-11-22 14:30:18,298 INFO L276 IsEmpty]: Start isEmpty. Operand 1472 states and 1838 transitions. [2024-11-22 14:30:18,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-22 14:30:18,299 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 14:30:18,299 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] [2024-11-22 14:30:18,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-22 14:30:18,299 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 14:30:18,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 14:30:18,300 INFO L85 PathProgramCache]: Analyzing trace with hash 994529226, now seen corresponding path program 1 times [2024-11-22 14:30:18,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 14:30:18,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640336688] [2024-11-22 14:30:18,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 14:30:18,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 14:30:19,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 14:30:19,336 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-11-22 14:30:19,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 14:30:19,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640336688] [2024-11-22 14:30:19,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640336688] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 14:30:19,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [471378454] [2024-11-22 14:30:19,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 14:30:19,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 14:30:19,338 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 14:30:19,373 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 14:30:19,376 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-22 14:30:21,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 14:30:21,056 INFO L255 TraceCheckSpWp]: Trace formula consists of 2378 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 14:30:21,060 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 14:30:21,210 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-11-22 14:30:21,210 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 14:30:21,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [471378454] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 14:30:21,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 14:30:21,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2024-11-22 14:30:21,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419168440] [2024-11-22 14:30:21,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 14:30:21,211 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 14:30:21,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 14:30:21,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 14:30:21,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 14:30:21,212 INFO L87 Difference]: Start difference. First operand 1472 states and 1838 transitions. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 3 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-22 14:30:21,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 14:30:21,293 INFO L93 Difference]: Finished difference Result 2018 states and 2512 transitions. [2024-11-22 14:30:21,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 14:30:21,297 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 3 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 157 [2024-11-22 14:30:21,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 14:30:21,302 INFO L225 Difference]: With dead ends: 2018 [2024-11-22 14:30:21,302 INFO L226 Difference]: Without dead ends: 741 [2024-11-22 14:30:21,305 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 14:30:21,305 INFO L432 NwaCegarLoop]: 238 mSDtfsCounter, 68 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 14:30:21,306 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 455 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 14:30:21,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 741 states. [2024-11-22 14:30:21,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 741 to 735. [2024-11-22 14:30:21,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 735 states, 588 states have (on average 1.1785714285714286) internal successors, (693), 589 states have internal predecessors, (693), 89 states have call successors, (89), 50 states have call predecessors, (89), 57 states have return successors, (110), 95 states have call predecessors, (110), 85 states have call successors, (110) [2024-11-22 14:30:21,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 735 states to 735 states and 892 transitions. [2024-11-22 14:30:21,326 INFO L78 Accepts]: Start accepts. Automaton has 735 states and 892 transitions. Word has length 157 [2024-11-22 14:30:21,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 14:30:21,327 INFO L471 AbstractCegarLoop]: Abstraction has 735 states and 892 transitions. [2024-11-22 14:30:21,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 3 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-22 14:30:21,327 INFO L276 IsEmpty]: Start isEmpty. Operand 735 states and 892 transitions. [2024-11-22 14:30:21,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-11-22 14:30:21,328 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 14:30:21,328 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 14:30:21,342 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-22 14:30:21,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 14:30:21,529 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 14:30:21,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 14:30:21,530 INFO L85 PathProgramCache]: Analyzing trace with hash -521120122, now seen corresponding path program 1 times [2024-11-22 14:30:21,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 14:30:21,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124440038] [2024-11-22 14:30:21,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 14:30:21,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 14:30:22,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 14:30:22,679 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-22 14:30:22,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 14:30:22,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124440038] [2024-11-22 14:30:22,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124440038] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 14:30:22,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 14:30:22,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 14:30:22,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125973749] [2024-11-22 14:30:22,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 14:30:22,680 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 14:30:22,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 14:30:22,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 14:30:22,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 14:30:22,683 INFO L87 Difference]: Start difference. First operand 735 states and 892 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-22 14:30:22,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 14:30:22,699 INFO L93 Difference]: Finished difference Result 1016 states and 1235 transitions. [2024-11-22 14:30:22,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 14:30:22,699 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 170 [2024-11-22 14:30:22,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 14:30:22,702 INFO L225 Difference]: With dead ends: 1016 [2024-11-22 14:30:22,702 INFO L226 Difference]: Without dead ends: 468 [2024-11-22 14:30:22,703 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 [2024-11-22 14:30:22,704 INFO L432 NwaCegarLoop]: 235 mSDtfsCounter, 0 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 468 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 [2024-11-22 14:30:22,704 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 468 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 14:30:22,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2024-11-22 14:30:22,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 468. [2024-11-22 14:30:22,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 468 states, 375 states have (on average 1.168) internal successors, (438), 376 states have internal predecessors, (438), 57 states have call successors, (57), 33 states have call predecessors, (57), 35 states have return successors, (63), 58 states have call predecessors, (63), 53 states have call successors, (63) [2024-11-22 14:30:22,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 558 transitions. [2024-11-22 14:30:22,717 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 558 transitions. Word has length 170 [2024-11-22 14:30:22,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 14:30:22,717 INFO L471 AbstractCegarLoop]: Abstraction has 468 states and 558 transitions. [2024-11-22 14:30:22,718 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-22 14:30:22,718 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 558 transitions. [2024-11-22 14:30:22,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-22 14:30:22,719 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 14:30:22,719 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 14:30:22,719 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-22 14:30:22,719 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 14:30:22,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 14:30:22,720 INFO L85 PathProgramCache]: Analyzing trace with hash -1655237909, now seen corresponding path program 1 times [2024-11-22 14:30:22,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 14:30:22,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081371540] [2024-11-22 14:30:22,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 14:30:22,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 14:30:23,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 14:30:23,889 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-22 14:30:23,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 14:30:23,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081371540] [2024-11-22 14:30:23,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081371540] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 14:30:23,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [492756899] [2024-11-22 14:30:23,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 14:30:23,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 14:30:23,890 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 14:30:23,892 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 14:30:23,893 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-22 14:30:25,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 14:30:25,609 INFO L255 TraceCheckSpWp]: Trace formula consists of 2414 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-22 14:30:25,615 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 14:30:26,007 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-22 14:30:26,007 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 14:30:26,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [492756899] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 14:30:26,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 14:30:26,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [4] total 10 [2024-11-22 14:30:26,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469257427] [2024-11-22 14:30:26,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 14:30:26,008 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 14:30:26,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 14:30:26,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 14:30:26,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-22 14:30:26,009 INFO L87 Difference]: Start difference. First operand 468 states and 558 transitions. Second operand has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 states have internal predecessors, (113), 4 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-22 14:30:30,022 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-22 14:30:34,052 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-22 14:30:38,081 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-22 14:30:38,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 14:30:38,525 INFO L93 Difference]: Finished difference Result 480 states and 567 transitions. [2024-11-22 14:30:38,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 14:30:38,526 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 states have internal predecessors, (113), 4 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 172 [2024-11-22 14:30:38,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 14:30:38,528 INFO L225 Difference]: With dead ends: 480 [2024-11-22 14:30:38,528 INFO L226 Difference]: Without dead ends: 429 [2024-11-22 14:30:38,529 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2024-11-22 14:30:38,529 INFO L432 NwaCegarLoop]: 156 mSDtfsCounter, 281 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 76 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 518 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.4s IncrementalHoareTripleChecker+Time [2024-11-22 14:30:38,529 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [293 Valid, 518 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 338 Invalid, 3 Unknown, 0 Unchecked, 12.4s Time] [2024-11-22 14:30:38,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2024-11-22 14:30:38,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 424. [2024-11-22 14:30:38,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 424 states, 339 states have (on average 1.168141592920354) internal successors, (396), 343 states have internal predecessors, (396), 52 states have call successors, (52), 32 states have call predecessors, (52), 32 states have return successors, (51), 48 states have call predecessors, (51), 48 states have call successors, (51) [2024-11-22 14:30:38,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 499 transitions. [2024-11-22 14:30:38,541 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 499 transitions. Word has length 172 [2024-11-22 14:30:38,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 14:30:38,542 INFO L471 AbstractCegarLoop]: Abstraction has 424 states and 499 transitions. [2024-11-22 14:30:38,542 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 states have internal predecessors, (113), 4 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-22 14:30:38,542 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 499 transitions. [2024-11-22 14:30:38,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2024-11-22 14:30:38,543 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 14:30:38,543 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 14:30:38,558 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-22 14:30:38,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 14:30:38,744 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 14:30:38,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 14:30:38,745 INFO L85 PathProgramCache]: Analyzing trace with hash -1078756983, now seen corresponding path program 1 times [2024-11-22 14:30:38,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 14:30:38,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286905367] [2024-11-22 14:30:38,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 14:30:38,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 14:30:39,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 14:30:39,936 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 10 proven. 8 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2024-11-22 14:30:39,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 14:30:39,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286905367] [2024-11-22 14:30:39,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286905367] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 14:30:39,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2142834029] [2024-11-22 14:30:39,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 14:30:39,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 14:30:39,937 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 14:30:39,939 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 14:30:39,940 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-22 14:30:41,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 14:30:41,774 INFO L255 TraceCheckSpWp]: Trace formula consists of 2561 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-22 14:30:41,779 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 14:30:41,839 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-22 14:30:41,840 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 14:30:41,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2142834029] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 14:30:41,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 14:30:41,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2024-11-22 14:30:41,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962351986] [2024-11-22 14:30:41,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 14:30:41,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 14:30:41,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 14:30:41,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 14:30:41,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 14:30:41,841 INFO L87 Difference]: Start difference. First operand 424 states and 499 transitions. Second operand has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 3 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19)