./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 4f9af400 extending candidate: java ['java'] extending candidate: /usr/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/oracle-jdk-bin-*/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/openjdk-*/bin/java ['java', '/usr/bin/java'] extending candidate: /usr/lib/jvm/java-*-openjdk-amd64/bin/java ['java', '/usr/bin/java', '/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java', '/usr/lib/jvm/java-17-openjdk-amd64/bin/java', '/usr/lib/jvm/java-11-openjdk-amd64/bin/java', '/usr/lib/jvm/java-1.17.0-openjdk-amd64/bin/java'] ['/root/.sdkman/candidates/java/21.0.5-tem/bin/java', '-Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config', '-Xmx15G', '-Xms4m', '-jar', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar', '-data', '@noDefault', '-ultimatedata', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data', '-tc', '/storage/repos/ultimate-jdk21/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-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf', '--cacsl2boogietranslator.entry.function', 'main', '--witnessprinter.witness.directory', '/storage/repos/ultimate-jdk21/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())) )\n\n', '--witnessprinter.graph.data.producer', 'Automizer', '--witnessprinter.graph.data.architecture', '64bit', '--witnessprinter.graph.data.programhash', '7325716246446e6137919cda7fc42ef01fc613ff512d250d81e88f25c6debe0a'] Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/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-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 0.3.0-?-4f9af40 [2024-11-07 12:07:31,437 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 12:07:31,505 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-07 12:07:31,510 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 12:07:31,511 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 12:07:31,529 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 12:07:31,530 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 12:07:31,530 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 12:07:31,531 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 12:07:31,531 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 12:07:31,531 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 12:07:31,531 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 12:07:31,531 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 12:07:31,531 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 12:07:31,531 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 12:07:31,532 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 12:07:31,532 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 12:07:31,532 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 12:07:31,532 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 12:07:31,532 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 12:07:31,532 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 12:07:31,532 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 12:07:31,532 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 12:07:31,533 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 12:07:31,533 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 12:07:31,533 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 12:07:31,533 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 12:07:31,533 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 12:07:31,533 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 12:07:31,533 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 12:07:31,533 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 12:07:31,533 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 12:07:31,534 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 12:07:31,534 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 12:07:31,534 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 12:07:31,534 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 12:07:31,534 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 12:07:31,534 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 12:07:31,534 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 12:07:31,534 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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-jdk21/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 [2024-11-07 12:07:31,959 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 12:07:31,970 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 12:07:31,973 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 12:07:31,974 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 12:07:31,974 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 12:07:31,976 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-input-tablet-kbtab.ko.cil.out.i [2024-11-07 12:07:33,543 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 12:07:33,978 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 12:07:33,978 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-input-tablet-kbtab.ko.cil.out.i [2024-11-07 12:07:34,008 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b2ba91dc0/80bd5de779d84e1f96101b8c21484992/FLAGba0d572e4 [2024-11-07 12:07:34,039 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b2ba91dc0/80bd5de779d84e1f96101b8c21484992 [2024-11-07 12:07:34,043 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 12:07:34,046 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 12:07:34,048 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 12:07:34,050 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 12:07:34,055 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 12:07:34,057 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:07:34" (1/1) ... [2024-11-07 12:07:34,058 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f541f8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:07:34, skipping insertion in model container [2024-11-07 12:07:34,058 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:07:34" (1/1) ... [2024-11-07 12:07:34,138 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 12:07:34,962 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-input-tablet-kbtab.ko.cil.out.i[115804,115817] [2024-11-07 12:07:35,010 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 12:07:35,051 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 12:07:35,235 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-input-tablet-kbtab.ko.cil.out.i[115804,115817] [2024-11-07 12:07:35,246 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 12:07:35,359 INFO L204 MainTranslator]: Completed translation [2024-11-07 12:07:35,360 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:07:35 WrapperNode [2024-11-07 12:07:35,360 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 12:07:35,361 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 12:07:35,362 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 12:07:35,362 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 12:07:35,367 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:07:35" (1/1) ... [2024-11-07 12:07:35,406 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:07:35" (1/1) ... [2024-11-07 12:07:35,482 INFO L138 Inliner]: procedures = 78, calls = 266, calls flagged for inlining = 29, calls inlined = 26, statements flattened = 1024 [2024-11-07 12:07:35,483 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 12:07:35,483 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 12:07:35,484 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 12:07:35,484 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 12:07:35,495 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:07:35" (1/1) ... [2024-11-07 12:07:35,496 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:07:35" (1/1) ... [2024-11-07 12:07:35,512 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:07:35" (1/1) ... [2024-11-07 12:07:35,595 INFO L175 MemorySlicer]: Split 160 memory accesses to 6 slices as follows [82, 2, 6, 8, 42, 20]. 51 percent of accesses are in the largest equivalence class. The 23 initializations are split as follows [6, 2, 6, 8, 0, 1]. The 103 writes are split as follows [42, 0, 0, 0, 42, 19]. [2024-11-07 12:07:35,599 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:07:35" (1/1) ... [2024-11-07 12:07:35,599 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:07:35" (1/1) ... [2024-11-07 12:07:35,646 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:07:35" (1/1) ... [2024-11-07 12:07:35,665 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:07:35" (1/1) ... [2024-11-07 12:07:35,678 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:07:35" (1/1) ... [2024-11-07 12:07:35,686 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:07:35" (1/1) ... [2024-11-07 12:07:35,707 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 12:07:35,708 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 12:07:35,708 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 12:07:35,708 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 12:07:35,709 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:07:35" (1/1) ... [2024-11-07 12:07:35,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 12:07:35,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 12:07:35,754 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-07 12:07:35,757 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-07 12:07:35,782 INFO L130 BoogieDeclarations]: Found specification of procedure kbtab_init [2024-11-07 12:07:35,782 INFO L138 BoogieDeclarations]: Found implementation of procedure kbtab_init [2024-11-07 12:07:35,782 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 12:07:35,782 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2024-11-07 12:07:35,783 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2024-11-07 12:07:35,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-07 12:07:35,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-07 12:07:35,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-07 12:07:35,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-07 12:07:35,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-07 12:07:35,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-07 12:07:35,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-07 12:07:35,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-07 12:07:35,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-07 12:07:35,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-07 12:07:35,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-07 12:07:35,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-07 12:07:35,785 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2024-11-07 12:07:35,785 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2024-11-07 12:07:35,785 INFO L130 BoogieDeclarations]: Found specification of procedure kbtab_exit [2024-11-07 12:07:35,785 INFO L138 BoogieDeclarations]: Found implementation of procedure kbtab_exit [2024-11-07 12:07:35,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-07 12:07:35,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-07 12:07:35,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-07 12:07:35,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-07 12:07:35,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-07 12:07:35,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-07 12:07:35,785 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2024-11-07 12:07:35,785 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2024-11-07 12:07:35,785 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-07 12:07:35,785 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-07 12:07:35,785 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-07 12:07:35,786 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-07 12:07:35,786 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-07 12:07:35,786 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-07 12:07:35,786 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-07 12:07:35,786 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-07 12:07:35,786 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-07 12:07:35,786 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-07 12:07:35,786 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-07 12:07:35,786 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-07 12:07:35,786 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2024-11-07 12:07:35,786 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2024-11-07 12:07:35,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-07 12:07:35,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-07 12:07:35,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2024-11-07 12:07:35,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2024-11-07 12:07:35,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-07 12:07:35,786 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2024-11-07 12:07:35,786 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2024-11-07 12:07:35,786 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-07 12:07:35,786 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-07 12:07:35,786 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-07 12:07:35,786 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-07 12:07:35,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-07 12:07:35,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-07 12:07:35,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-07 12:07:35,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-07 12:07:35,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-07 12:07:35,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-07 12:07:35,787 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2024-11-07 12:07:35,787 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2024-11-07 12:07:35,787 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume_stop [2024-11-07 12:07:35,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume_stop [2024-11-07 12:07:35,787 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2024-11-07 12:07:35,787 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2024-11-07 12:07:35,787 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_pointer [2024-11-07 12:07:35,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undefined_pointer [2024-11-07 12:07:35,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 12:07:35,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-07 12:07:35,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-07 12:07:35,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-07 12:07:35,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-07 12:07:35,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-07 12:07:35,787 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-07 12:07:35,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 12:07:35,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 12:07:36,107 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 12:07:36,110 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 12:07:36,330 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_assume_stopFINAL: assume true; [2024-11-07 12:07:36,344 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-07 12:07:41,483 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume false; [2024-11-07 12:07:41,484 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume !false; [2024-11-07 12:07:41,537 INFO L? ?]: Removed 279 outVars from TransFormulas that were not future-live. [2024-11-07 12:07:41,537 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 12:07:41,563 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 12:07:41,563 INFO L316 CfgBuilder]: Removed 6 assume(true) statements. [2024-11-07 12:07:41,564 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:07:41 BoogieIcfgContainer [2024-11-07 12:07:41,564 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 12:07:41,566 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 12:07:41,566 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 12:07:41,571 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 12:07:41,571 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:07:34" (1/3) ... [2024-11-07 12:07:41,572 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49bf65ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:07:41, skipping insertion in model container [2024-11-07 12:07:41,572 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:07:35" (2/3) ... [2024-11-07 12:07:41,572 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49bf65ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:07:41, skipping insertion in model container [2024-11-07 12:07:41,572 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:07:41" (3/3) ... [2024-11-07 12:07:41,573 INFO L112 eAbstractionObserver]: Analyzing ICFG usb_urb-drivers-input-tablet-kbtab.ko.cil.out.i [2024-11-07 12:07:41,586 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 12:07:41,587 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-07 12:07:41,637 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 12:07:41,648 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;@6fb1961a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 12:07:41,648 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-07 12:07:41,654 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) [2024-11-07 12:07:41,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-07 12:07:41,660 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 12:07:41,661 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 12:07:41,661 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 12:07:41,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 12:07:41,665 INFO L85 PathProgramCache]: Analyzing trace with hash -244939124, now seen corresponding path program 1 times [2024-11-07 12:07:41,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 12:07:41,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268421296] [2024-11-07 12:07:41,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 12:07:41,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 12:07:43,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:07:43,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-07 12:07:43,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:07:43,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 12:07:43,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 12:07:43,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268421296] [2024-11-07 12:07:43,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268421296] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 12:07:43,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 12:07:43,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 12:07:43,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106139808] [2024-11-07 12:07:43,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 12:07:43,875 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 12:07:43,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 12:07:43,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 12:07:43,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 12:07:43,897 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) [2024-11-07 12:07:44,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 12:07:44,035 INFO L93 Difference]: Finished difference Result 566 states and 784 transitions. [2024-11-07 12:07:44,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 12:07:44,039 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 [2024-11-07 12:07:44,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 12:07:44,051 INFO L225 Difference]: With dead ends: 566 [2024-11-07 12:07:44,053 INFO L226 Difference]: Without dead ends: 368 [2024-11-07 12:07:44,061 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 12:07:44,064 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 [2024-11-07 12:07:44,066 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] [2024-11-07 12:07:44,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2024-11-07 12:07:44,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 364. [2024-11-07 12:07:44,127 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) [2024-11-07 12:07:44,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 457 transitions. [2024-11-07 12:07:44,143 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 457 transitions. Word has length 17 [2024-11-07 12:07:44,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 12:07:44,145 INFO L471 AbstractCegarLoop]: Abstraction has 364 states and 457 transitions. [2024-11-07 12:07:44,145 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) [2024-11-07 12:07:44,145 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 457 transitions. [2024-11-07 12:07:44,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-07 12:07:44,146 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 12:07:44,146 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 12:07:44,147 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 12:07:44,147 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 12:07:44,147 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 12:07:44,149 INFO L85 PathProgramCache]: Analyzing trace with hash 996714932, now seen corresponding path program 1 times [2024-11-07 12:07:44,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 12:07:44,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331157085] [2024-11-07 12:07:44,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 12:07:44,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 12:07:45,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:07:45,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-07 12:07:45,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:07:45,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 12:07:45,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 12:07:45,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331157085] [2024-11-07 12:07:45,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331157085] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 12:07:45,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 12:07:45,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 12:07:45,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242124739] [2024-11-07 12:07:45,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 12:07:45,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 12:07:45,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 12:07:45,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 12:07:45,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 12:07:45,813 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) [2024-11-07 12:07:45,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 12:07:45,917 INFO L93 Difference]: Finished difference Result 1053 states and 1332 transitions. [2024-11-07 12:07:45,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 12:07:45,918 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 [2024-11-07 12:07:45,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 12:07:45,926 INFO L225 Difference]: With dead ends: 1053 [2024-11-07 12:07:45,926 INFO L226 Difference]: Without dead ends: 699 [2024-11-07 12:07:45,928 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 12:07:45,930 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 [2024-11-07 12:07:45,931 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] [2024-11-07 12:07:45,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2024-11-07 12:07:46,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 692. [2024-11-07 12:07:46,011 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) [2024-11-07 12:07:46,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 871 transitions. [2024-11-07 12:07:46,027 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 871 transitions. Word has length 18 [2024-11-07 12:07:46,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 12:07:46,027 INFO L471 AbstractCegarLoop]: Abstraction has 692 states and 871 transitions. [2024-11-07 12:07:46,028 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) [2024-11-07 12:07:46,028 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 871 transitions. [2024-11-07 12:07:46,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-07 12:07:46,029 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 12:07:46,029 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] [2024-11-07 12:07:46,029 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 12:07:46,029 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 12:07:46,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 12:07:46,030 INFO L85 PathProgramCache]: Analyzing trace with hash 2050665313, now seen corresponding path program 1 times [2024-11-07 12:07:46,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 12:07:46,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032885808] [2024-11-07 12:07:46,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 12:07:46,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 12:07:47,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:07:47,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-07 12:07:47,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:07:47,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-07 12:07:47,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:07:47,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 12:07:47,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:07:47,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 12:07:47,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:07:47,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 12:07:47,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:07:47,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 12:07:47,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 12:07:47,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032885808] [2024-11-07 12:07:47,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032885808] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 12:07:47,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 12:07:47,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 12:07:47,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454882914] [2024-11-07 12:07:47,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 12:07:47,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 12:07:47,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 12:07:47,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 12:07:47,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 12:07:47,892 INFO L87 Difference]: Start difference. First operand 692 states and 871 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 12:07:51,920 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 [] [2024-11-07 12:07:52,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 12:07:52,585 INFO L93 Difference]: Finished difference Result 1466 states and 1866 transitions. [2024-11-07 12:07:52,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 12:07:52,586 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 51 [2024-11-07 12:07:52,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 12:07:52,592 INFO L225 Difference]: With dead ends: 1466 [2024-11-07 12:07:52,593 INFO L226 Difference]: Without dead ends: 791 [2024-11-07 12:07:52,594 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 12:07:52,595 INFO L432 NwaCegarLoop]: 190 mSDtfsCounter, 168 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 33 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 395 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-11-07 12:07:52,595 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 395 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 144 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2024-11-07 12:07:52,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 791 states. [2024-11-07 12:07:52,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 791 to 727. [2024-11-07 12:07:52,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 727 states, 588 states have (on average 1.25) internal successors, (735), 591 states have internal predecessors, (735), 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) [2024-11-07 12:07:52,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 727 states to 727 states and 917 transitions. [2024-11-07 12:07:52,644 INFO L78 Accepts]: Start accepts. Automaton has 727 states and 917 transitions. Word has length 51 [2024-11-07 12:07:52,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 12:07:52,644 INFO L471 AbstractCegarLoop]: Abstraction has 727 states and 917 transitions. [2024-11-07 12:07:52,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 12:07:52,645 INFO L276 IsEmpty]: Start isEmpty. Operand 727 states and 917 transitions. [2024-11-07 12:07:52,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-07 12:07:52,647 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 12:07:52,648 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] [2024-11-07 12:07:52,648 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 12:07:52,648 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 12:07:52,649 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 12:07:52,649 INFO L85 PathProgramCache]: Analyzing trace with hash 873011692, now seen corresponding path program 1 times [2024-11-07 12:07:52,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 12:07:52,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411171314] [2024-11-07 12:07:52,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 12:07:52,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 12:07:53,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:07:54,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-07 12:07:54,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:07:54,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-07 12:07:54,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:07:54,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-07 12:07:54,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:07:54,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-07 12:07:54,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:07:54,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-07 12:07:54,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:07:54,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 12:07:54,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:07:54,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-07 12:07:54,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:07:54,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-07 12:07:54,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:07:54,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-07 12:07:54,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:07:54,466 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-07 12:07:54,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 12:07:54,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411171314] [2024-11-07 12:07:54,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411171314] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 12:07:54,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 12:07:54,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 12:07:54,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110380693] [2024-11-07 12:07:54,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 12:07:54,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 12:07:54,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 12:07:54,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 12:07:54,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 12:07:54,469 INFO L87 Difference]: Start difference. First operand 727 states and 917 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-07 12:07:58,490 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 [] [2024-11-07 12:07:59,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 12:07:59,225 INFO L93 Difference]: Finished difference Result 1493 states and 1888 transitions. [2024-11-07 12:07:59,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 12:07:59,226 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 90 [2024-11-07 12:07:59,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 12:07:59,232 INFO L225 Difference]: With dead ends: 1493 [2024-11-07 12:07:59,233 INFO L226 Difference]: Without dead ends: 779 [2024-11-07 12:07:59,239 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-07 12:07:59,241 INFO L432 NwaCegarLoop]: 192 mSDtfsCounter, 63 mSDsluCounter, 857 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 25 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 1049 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-11-07 12:07:59,242 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 1049 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 329 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2024-11-07 12:07:59,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 779 states. [2024-11-07 12:07:59,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 779 to 727. [2024-11-07 12:07:59,308 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) [2024-11-07 12:07:59,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 727 states to 727 states and 916 transitions. [2024-11-07 12:07:59,316 INFO L78 Accepts]: Start accepts. Automaton has 727 states and 916 transitions. Word has length 90 [2024-11-07 12:07:59,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 12:07:59,316 INFO L471 AbstractCegarLoop]: Abstraction has 727 states and 916 transitions. [2024-11-07 12:07:59,316 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-07 12:07:59,316 INFO L276 IsEmpty]: Start isEmpty. Operand 727 states and 916 transitions. [2024-11-07 12:07:59,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-07 12:07:59,319 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 12:07:59,323 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] [2024-11-07 12:07:59,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 12:07:59,323 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 12:07:59,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 12:07:59,324 INFO L85 PathProgramCache]: Analyzing trace with hash -581652613, now seen corresponding path program 1 times [2024-11-07 12:07:59,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 12:07:59,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532970621] [2024-11-07 12:07:59,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 12:07:59,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 12:08:00,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:08:01,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-07 12:08:01,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:08:01,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 12:08:01,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:08:01,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-07 12:08:01,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:08:01,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-07 12:08:01,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:08:01,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-07 12:08:01,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:08:02,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-07 12:08:02,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:08:02,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-07 12:08:02,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:08:02,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-07 12:08:02,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:08:02,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-07 12:08:02,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:08:02,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-07 12:08:02,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:08:02,031 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-07 12:08:02,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 12:08:02,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532970621] [2024-11-07 12:08:02,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532970621] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 12:08:02,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [910395358] [2024-11-07 12:08:02,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 12:08:02,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 12:08:02,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 12:08:02,041 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 12:08:02,052 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-07 12:08:03,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:08:03,911 INFO L255 TraceCheckSpWp]: Trace formula consists of 1683 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-07 12:08:03,925 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 12:08:04,081 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-07 12:08:04,081 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 12:08:04,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [910395358] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 12:08:04,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 12:08:04,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2024-11-07 12:08:04,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24244617] [2024-11-07 12:08:04,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 12:08:04,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 12:08:04,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 12:08:04,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 12:08:04,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-07 12:08:04,083 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) [2024-11-07 12:08:04,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 12:08:04,152 INFO L93 Difference]: Finished difference Result 1193 states and 1500 transitions. [2024-11-07 12:08:04,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 12:08:04,153 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 [2024-11-07 12:08:04,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 12:08:04,156 INFO L225 Difference]: With dead ends: 1193 [2024-11-07 12:08:04,157 INFO L226 Difference]: Without dead ends: 484 [2024-11-07 12:08:04,159 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-07 12:08:04,159 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 [2024-11-07 12:08:04,160 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] [2024-11-07 12:08:04,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2024-11-07 12:08:04,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 484. [2024-11-07 12:08:04,179 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) [2024-11-07 12:08:04,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 599 transitions. [2024-11-07 12:08:04,182 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 599 transitions. Word has length 95 [2024-11-07 12:08:04,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 12:08:04,182 INFO L471 AbstractCegarLoop]: Abstraction has 484 states and 599 transitions. [2024-11-07 12:08:04,183 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) [2024-11-07 12:08:04,183 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 599 transitions. [2024-11-07 12:08:04,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-07 12:08:04,187 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 12:08:04,187 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] [2024-11-07 12:08:04,212 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-07 12:08:04,391 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 12:08:04,392 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 12:08:04,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 12:08:04,393 INFO L85 PathProgramCache]: Analyzing trace with hash 45648230, now seen corresponding path program 1 times [2024-11-07 12:08:04,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 12:08:04,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140381407] [2024-11-07 12:08:04,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 12:08:04,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 12:08:05,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:08:06,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-07 12:08:06,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:08:06,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 12:08:06,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:08:06,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-07 12:08:06,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:08:06,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-07 12:08:06,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:08:06,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-07 12:08:06,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:08:06,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-07 12:08:06,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:08:06,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-07 12:08:06,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:08:06,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-07 12:08:06,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:08:06,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-07 12:08:06,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:08:06,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 12:08:06,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:08:06,959 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-07 12:08:06,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 12:08:06,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140381407] [2024-11-07 12:08:06,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140381407] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 12:08:06,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [500585310] [2024-11-07 12:08:06,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 12:08:06,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 12:08:06,960 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 12:08:06,963 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 12:08:06,970 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-07 12:08:08,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:08:08,951 INFO L255 TraceCheckSpWp]: Trace formula consists of 1623 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-07 12:08:08,957 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 12:08:09,837 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-07 12:08:09,838 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 12:08:09,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [500585310] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 12:08:09,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 12:08:09,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [8] total 16 [2024-11-07 12:08:09,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326070647] [2024-11-07 12:08:09,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 12:08:09,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 12:08:09,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 12:08:09,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 12:08:09,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=210, Unknown=0, NotChecked=0, Total=240 [2024-11-07 12:08:09,844 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) [2024-11-07 12:08:10,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 12:08:10,638 INFO L93 Difference]: Finished difference Result 986 states and 1231 transitions. [2024-11-07 12:08:10,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 12:08:10,640 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 [2024-11-07 12:08:10,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 12:08:10,649 INFO L225 Difference]: With dead ends: 986 [2024-11-07 12:08:10,649 INFO L226 Difference]: Without dead ends: 520 [2024-11-07 12:08:10,651 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=30, Invalid=210, Unknown=0, NotChecked=0, Total=240 [2024-11-07 12:08:10,652 INFO L432 NwaCegarLoop]: 234 mSDtfsCounter, 2 mSDsluCounter, 1855 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2089 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-07 12:08:10,652 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2089 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-07 12:08:10,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2024-11-07 12:08:10,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 517. [2024-11-07 12:08:10,709 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) [2024-11-07 12:08:10,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 644 transitions. [2024-11-07 12:08:10,716 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 644 transitions. Word has length 92 [2024-11-07 12:08:10,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 12:08:10,716 INFO L471 AbstractCegarLoop]: Abstraction has 517 states and 644 transitions. [2024-11-07 12:08:10,716 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) [2024-11-07 12:08:10,717 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 644 transitions. [2024-11-07 12:08:10,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-07 12:08:10,721 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 12:08:10,722 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] [2024-11-07 12:08:10,747 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-07 12:08:10,922 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 12:08:10,923 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 12:08:10,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 12:08:10,923 INFO L85 PathProgramCache]: Analyzing trace with hash -1137699067, now seen corresponding path program 1 times [2024-11-07 12:08:10,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 12:08:10,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115750815] [2024-11-07 12:08:10,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 12:08:10,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 12:08:12,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:08:13,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-07 12:08:13,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:08:13,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 12:08:13,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:08:13,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-07 12:08:13,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:08:13,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-07 12:08:13,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:08:13,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-07 12:08:13,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:08:13,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-07 12:08:13,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:08:13,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-07 12:08:13,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:08:13,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-07 12:08:13,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:08:13,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-07 12:08:13,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:08:13,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 12:08:13,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:08:13,638 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-07 12:08:13,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 12:08:13,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115750815] [2024-11-07 12:08:13,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115750815] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 12:08:13,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1097620928] [2024-11-07 12:08:13,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 12:08:13,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 12:08:13,639 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 12:08:13,643 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 12:08:13,652 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-07 12:08:15,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:08:15,666 INFO L255 TraceCheckSpWp]: Trace formula consists of 1632 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-07 12:08:15,671 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 12:08:16,232 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 8 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-07 12:08:16,232 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 12:08:16,777 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-07 12:08:16,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1097620928] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 12:08:16,781 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 12:08:16,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 9] total 13 [2024-11-07 12:08:16,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650090548] [2024-11-07 12:08:16,781 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 12:08:16,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-07 12:08:16,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 12:08:16,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-07 12:08:16,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2024-11-07 12:08:16,785 INFO L87 Difference]: Start difference. First operand 517 states and 644 transitions. Second operand has 13 states, 13 states have (on average 6.538461538461538) internal successors, (85), 9 states have internal predecessors, (85), 5 states have call successors, (21), 4 states have call predecessors, (21), 5 states have return successors, (17), 6 states have call predecessors, (17), 5 states have call successors, (17) [2024-11-07 12:08:20,825 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-07 12:08:24,881 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-07 12:08:28,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 12:08:28,529 INFO L93 Difference]: Finished difference Result 1109 states and 1398 transitions. [2024-11-07 12:08:28,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-07 12:08:28,530 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.538461538461538) internal successors, (85), 9 states have internal predecessors, (85), 5 states have call successors, (21), 4 states have call predecessors, (21), 5 states have return successors, (17), 6 states have call predecessors, (17), 5 states have call successors, (17) Word has length 92 [2024-11-07 12:08:28,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 12:08:28,536 INFO L225 Difference]: With dead ends: 1109 [2024-11-07 12:08:28,536 INFO L226 Difference]: Without dead ends: 574 [2024-11-07 12:08:28,539 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=91, Invalid=461, Unknown=0, NotChecked=0, Total=552 [2024-11-07 12:08:28,542 INFO L432 NwaCegarLoop]: 188 mSDtfsCounter, 70 mSDsluCounter, 1835 mSDsCounter, 0 mSdLazyCounter, 751 mSolverCounterSat, 31 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 2023 SdHoareTripleChecker+Invalid, 784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 751 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2024-11-07 12:08:28,542 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 2023 Invalid, 784 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 751 Invalid, 2 Unknown, 0 Unchecked, 10.7s Time] [2024-11-07 12:08:28,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2024-11-07 12:08:28,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 532. [2024-11-07 12:08:28,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 426 states have (on average 1.2112676056338028) internal successors, (516), 426 states have internal predecessors, (516), 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) [2024-11-07 12:08:28,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 662 transitions. [2024-11-07 12:08:28,578 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 662 transitions. Word has length 92 [2024-11-07 12:08:28,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 12:08:28,579 INFO L471 AbstractCegarLoop]: Abstraction has 532 states and 662 transitions. [2024-11-07 12:08:28,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.538461538461538) internal successors, (85), 9 states have internal predecessors, (85), 5 states have call successors, (21), 4 states have call predecessors, (21), 5 states have return successors, (17), 6 states have call predecessors, (17), 5 states have call successors, (17) [2024-11-07 12:08:28,579 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 662 transitions. [2024-11-07 12:08:28,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-07 12:08:28,580 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 12:08:28,581 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-07 12:08:28,646 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-07 12:08:28,782 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 12:08:28,783 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 12:08:28,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 12:08:28,784 INFO L85 PathProgramCache]: Analyzing trace with hash 623518438, now seen corresponding path program 1 times [2024-11-07 12:08:28,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 12:08:28,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951389536] [2024-11-07 12:08:28,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 12:08:28,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 12:08:30,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:08:30,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-07 12:08:30,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:08:30,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 12:08:30,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:08:30,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-07 12:08:30,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:08:30,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 12:08:30,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:08:30,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-07 12:08:30,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:08:30,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 12:08:30,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:08:30,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-07 12:08:30,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:08:31,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-07 12:08:31,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:08:31,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-07 12:08:31,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:08:31,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-07 12:08:31,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:08:31,617 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-07 12:08:31,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 12:08:31,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951389536] [2024-11-07 12:08:31,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951389536] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 12:08:31,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 12:08:31,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-07 12:08:31,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495480060] [2024-11-07 12:08:31,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 12:08:31,619 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 12:08:31,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 12:08:31,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 12:08:31,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-07 12:08:31,621 INFO L87 Difference]: Start difference. First operand 532 states and 662 transitions. Second operand has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-07 12:08:35,657 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-07 12:08:39,691 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 [] [2024-11-07 12:08:41,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 12:08:41,050 INFO L93 Difference]: Finished difference Result 956 states and 1198 transitions. [2024-11-07 12:08:41,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 12:08:41,051 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) Word has length 96 [2024-11-07 12:08:41,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 12:08:41,057 INFO L225 Difference]: With dead ends: 956 [2024-11-07 12:08:41,057 INFO L226 Difference]: Without dead ends: 556 [2024-11-07 12:08:41,059 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-11-07 12:08:41,059 INFO L432 NwaCegarLoop]: 188 mSDtfsCounter, 59 mSDsluCounter, 1152 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 22 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 1340 SdHoareTripleChecker+Invalid, 449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2024-11-07 12:08:41,060 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 1340 Invalid, 449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 425 Invalid, 2 Unknown, 0 Unchecked, 9.2s Time] [2024-11-07 12:08:41,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2024-11-07 12:08:41,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 547. [2024-11-07 12:08:41,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 438 states have (on average 1.2054794520547945) internal successors, (528), 435 states have internal predecessors, (528), 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) [2024-11-07 12:08:41,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 679 transitions. [2024-11-07 12:08:41,090 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 679 transitions. Word has length 96 [2024-11-07 12:08:41,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 12:08:41,091 INFO L471 AbstractCegarLoop]: Abstraction has 547 states and 679 transitions. [2024-11-07 12:08:41,091 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-07 12:08:41,091 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 679 transitions. [2024-11-07 12:08:41,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-07 12:08:41,092 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 12:08:41,092 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2024-11-07 12:08:41,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-07 12:08:41,093 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 12:08:41,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 12:08:41,093 INFO L85 PathProgramCache]: Analyzing trace with hash 634834565, now seen corresponding path program 1 times [2024-11-07 12:08:41,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 12:08:41,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207728117] [2024-11-07 12:08:41,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 12:08:41,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 12:08:42,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:08:43,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-07 12:08:43,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:08:43,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 12:08:43,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:08:43,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-07 12:08:43,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:08:43,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 12:08:43,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:08:43,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-07 12:08:43,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:08:43,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 12:08:43,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:08:43,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-07 12:08:43,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:08:43,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-07 12:08:43,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:08:43,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-07 12:08:43,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:08:43,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-07 12:08:43,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:08:43,338 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-07 12:08:43,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 12:08:43,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207728117] [2024-11-07 12:08:43,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207728117] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 12:08:43,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 12:08:43,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-07 12:08:43,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043032171] [2024-11-07 12:08:43,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 12:08:43,339 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-07 12:08:43,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 12:08:43,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-07 12:08:43,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-11-07 12:08:43,341 INFO L87 Difference]: Start difference. First operand 547 states and 679 transitions. Second operand has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 7 states have internal predecessors, (62), 3 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-07 12:08:47,360 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 [] [2024-11-07 12:08:51,433 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-07 12:08:52,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 12:08:52,763 INFO L93 Difference]: Finished difference Result 966 states and 1207 transitions. [2024-11-07 12:08:52,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-07 12:08:52,764 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 7 states have internal predecessors, (62), 3 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) Word has length 96 [2024-11-07 12:08:52,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 12:08:52,768 INFO L225 Difference]: With dead ends: 966 [2024-11-07 12:08:52,768 INFO L226 Difference]: Without dead ends: 556 [2024-11-07 12:08:52,770 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2024-11-07 12:08:52,772 INFO L432 NwaCegarLoop]: 186 mSDtfsCounter, 114 mSDsluCounter, 1340 mSDsCounter, 0 mSdLazyCounter, 556 mSolverCounterSat, 51 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 1526 SdHoareTripleChecker+Invalid, 609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 556 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2024-11-07 12:08:52,772 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 1526 Invalid, 609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 556 Invalid, 2 Unknown, 0 Unchecked, 9.3s Time] [2024-11-07 12:08:52,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2024-11-07 12:08:52,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 547. [2024-11-07 12:08:52,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 438 states have (on average 1.2009132420091324) internal successors, (526), 435 states have internal predecessors, (526), 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) [2024-11-07 12:08:52,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 677 transitions. [2024-11-07 12:08:52,801 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 677 transitions. Word has length 96 [2024-11-07 12:08:52,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 12:08:52,802 INFO L471 AbstractCegarLoop]: Abstraction has 547 states and 677 transitions. [2024-11-07 12:08:52,803 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 7 states have internal predecessors, (62), 3 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-07 12:08:52,803 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 677 transitions. [2024-11-07 12:08:52,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-07 12:08:52,804 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 12:08:52,804 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 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] [2024-11-07 12:08:52,804 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-07 12:08:52,804 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 12:08:52,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 12:08:52,805 INFO L85 PathProgramCache]: Analyzing trace with hash -1600845766, now seen corresponding path program 1 times [2024-11-07 12:08:52,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 12:08:52,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154346175] [2024-11-07 12:08:52,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 12:08:52,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 12:08:54,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:08:54,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-07 12:08:54,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:08:54,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 12:08:54,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:08:54,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-07 12:08:54,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:08:54,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 12:08:54,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:08:54,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-07 12:08:54,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:08:54,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 12:08:54,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:08:54,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-07 12:08:54,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:08:54,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-07 12:08:54,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:08:54,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-07 12:08:54,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:08:54,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-07 12:08:54,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:08:54,451 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-07 12:08:54,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 12:08:54,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154346175] [2024-11-07 12:08:54,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154346175] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 12:08:54,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 12:08:54,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 12:08:54,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306582880] [2024-11-07 12:08:54,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 12:08:54,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 12:08:54,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 12:08:54,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 12:08:54,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 12:08:54,454 INFO L87 Difference]: Start difference. First operand 547 states and 677 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 5 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-07 12:08:58,475 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 []