./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--esd_usb2.ko-entry_point.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-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--esd_usb2.ko-entry_point.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', '781669661afd0476205c0d0f127c7931dffbaabf4aae46244e576c29ee5a8115'] 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-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--esd_usb2.ko-entry_point.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 781669661afd0476205c0d0f127c7931dffbaabf4aae46244e576c29ee5a8115 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 12:58:31,755 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 12:58:31,850 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-07 12:58:31,857 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 12:58:31,857 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 12:58:31,875 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 12:58:31,876 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 12:58:31,876 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 12:58:31,877 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 12:58:31,877 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 12:58:31,877 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 12:58:31,877 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 12:58:31,877 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 12:58:31,878 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 12:58:31,878 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 12:58:31,878 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 12:58:31,878 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 12:58:31,878 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 12:58:31,878 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 12:58:31,878 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 12:58:31,878 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 12:58:31,878 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 12:58:31,878 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 12:58:31,879 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 12:58:31,879 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 12:58:31,879 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 12:58:31,879 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 12:58:31,879 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 12:58:31,879 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 12:58:31,879 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 12:58:31,879 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 12:58:31,879 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 12:58:31,879 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 12:58:31,879 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 12:58:31,879 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 12:58:31,879 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 12:58:31,880 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 12:58:31,880 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 12:58:31,880 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 12:58:31,880 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 -> 781669661afd0476205c0d0f127c7931dffbaabf4aae46244e576c29ee5a8115 [2024-11-07 12:58:32,188 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 12:58:32,196 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 12:58:32,199 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 12:58:32,201 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 12:58:32,202 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 12:58:32,204 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--esd_usb2.ko-entry_point.cil.out.i [2024-11-07 12:58:33,631 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 12:58:34,233 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 12:58:34,234 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--esd_usb2.ko-entry_point.cil.out.i [2024-11-07 12:58:34,282 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f5914df49/b2f590e063f64173b5707442ddbd44a4/FLAGba1e3c990 [2024-11-07 12:58:34,301 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f5914df49/b2f590e063f64173b5707442ddbd44a4 [2024-11-07 12:58:34,304 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 12:58:34,305 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 12:58:34,308 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 12:58:34,309 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 12:58:34,312 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 12:58:34,313 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:58:34" (1/1) ... [2024-11-07 12:58:34,314 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e183241 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:34, skipping insertion in model container [2024-11-07 12:58:34,314 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:58:34" (1/1) ... [2024-11-07 12:58:34,419 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 12:58:35,208 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-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--esd_usb2.ko-entry_point.cil.out.i[163937,163950] [2024-11-07 12:58:35,590 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 12:58:35,620 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 12:58:35,767 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [5448] [2024-11-07 12:58:35,770 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; btr %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [5455] [2024-11-07 12:58:35,771 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; btr %2,%1\n\tsbb %0,%0": "=r" (oldbit), "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [5463-5464] [2024-11-07 12:58:35,773 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; incl %0": "+m" (v->counter)); [5493] [2024-11-07 12:58:35,773 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; decl %0": "+m" (v->counter)); [5500] [2024-11-07 12:58:35,788 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-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--esd_usb2.ko-entry_point.cil.out.i[163937,163950] [2024-11-07 12:58:36,016 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 12:58:36,119 INFO L204 MainTranslator]: Completed translation [2024-11-07 12:58:36,120 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:36 WrapperNode [2024-11-07 12:58:36,121 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 12:58:36,122 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 12:58:36,123 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 12:58:36,123 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 12:58:36,129 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:36" (1/1) ... [2024-11-07 12:58:36,211 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:36" (1/1) ... [2024-11-07 12:58:36,377 INFO L138 Inliner]: procedures = 161, calls = 852, calls flagged for inlining = 73, calls inlined = 73, statements flattened = 2743 [2024-11-07 12:58:36,378 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 12:58:36,379 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 12:58:36,379 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 12:58:36,379 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 12:58:36,388 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:36" (1/1) ... [2024-11-07 12:58:36,389 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:36" (1/1) ... [2024-11-07 12:58:36,414 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:36" (1/1) ... [2024-11-07 12:58:36,716 INFO L175 MemorySlicer]: Split 518 memory accesses to 8 slices as follows [2, 368, 9, 48, 9, 44, 19, 19]. 71 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 5, 0, 0, 0, 0, 0, 0]. The 304 writes are split as follows [0, 196, 5, 48, 0, 44, 0, 11]. [2024-11-07 12:58:36,716 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:36" (1/1) ... [2024-11-07 12:58:36,716 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:36" (1/1) ... [2024-11-07 12:58:36,791 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:36" (1/1) ... [2024-11-07 12:58:36,843 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:36" (1/1) ... [2024-11-07 12:58:36,862 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:36" (1/1) ... [2024-11-07 12:58:36,877 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:36" (1/1) ... [2024-11-07 12:58:36,902 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 12:58:36,903 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 12:58:36,904 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 12:58:36,904 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 12:58:36,905 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:36" (1/1) ... [2024-11-07 12:58:36,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 12:58:36,926 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 12:58:36,940 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 12:58:36,942 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 12:58:36,966 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2024-11-07 12:58:36,966 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2024-11-07 12:58:36,966 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_2 [2024-11-07 12:58:36,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_2 [2024-11-07 12:58:36,967 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_17 [2024-11-07 12:58:36,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_17 [2024-11-07 12:58:36,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-07 12:58:36,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-07 12:58:36,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-07 12:58:36,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-07 12:58:36,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-07 12:58:36,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-07 12:58:36,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-07 12:58:36,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-07 12:58:36,968 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_3 [2024-11-07 12:58:36,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_3 [2024-11-07 12:58:36,968 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2024-11-07 12:58:36,968 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2024-11-07 12:58:36,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-07 12:58:36,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-07 12:58:36,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-07 12:58:36,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-07 12:58:36,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-07 12:58:36,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-07 12:58:36,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-07 12:58:36,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-07 12:58:36,969 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-07 12:58:36,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-07 12:58:36,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-07 12:58:36,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-07 12:58:36,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-07 12:58:36,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-07 12:58:36,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-07 12:58:36,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-07 12:58:36,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-07 12:58:36,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-07 12:58:36,969 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2024-11-07 12:58:36,970 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2024-11-07 12:58:36,970 INFO L130 BoogieDeclarations]: Found specification of procedure can_free_echo_skb [2024-11-07 12:58:36,970 INFO L138 BoogieDeclarations]: Found implementation of procedure can_free_echo_skb [2024-11-07 12:58:36,970 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_present [2024-11-07 12:58:36,970 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_present [2024-11-07 12:58:36,971 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2024-11-07 12:58:36,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2024-11-07 12:58:36,971 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2024-11-07 12:58:36,971 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2024-11-07 12:58:36,971 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2024-11-07 12:58:36,971 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2024-11-07 12:58:36,971 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-07 12:58:36,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-07 12:58:36,972 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2024-11-07 12:58:36,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2024-11-07 12:58:36,972 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_anchored_urbs [2024-11-07 12:58:36,972 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_anchored_urbs [2024-11-07 12:58:36,972 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-07 12:58:36,972 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-07 12:58:36,972 INFO L130 BoogieDeclarations]: Found specification of procedure init_usb_anchor [2024-11-07 12:58:36,972 INFO L138 BoogieDeclarations]: Found implementation of procedure init_usb_anchor [2024-11-07 12:58:36,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-07 12:58:36,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-07 12:58:36,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-07 12:58:36,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-07 12:58:36,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-07 12:58:36,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-07 12:58:36,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-07 12:58:36,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-07 12:58:36,972 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-07 12:58:36,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-07 12:58:36,972 INFO L130 BoogieDeclarations]: Found specification of procedure device_create_file [2024-11-07 12:58:36,972 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create_file [2024-11-07 12:58:36,972 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-07 12:58:36,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-07 12:58:36,973 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-07 12:58:36,973 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-07 12:58:36,973 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2024-11-07 12:58:36,973 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2024-11-07 12:58:36,973 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-07 12:58:36,973 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2024-11-07 12:58:36,973 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2024-11-07 12:58:36,973 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2024-11-07 12:58:36,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2024-11-07 12:58:36,973 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_4 [2024-11-07 12:58:36,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_4 [2024-11-07 12:58:36,973 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 12:58:36,973 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2024-11-07 12:58:36,973 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2024-11-07 12:58:36,973 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2024-11-07 12:58:36,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2024-11-07 12:58:36,973 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-07 12:58:36,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-07 12:58:36,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-07 12:58:36,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-07 12:58:36,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-07 12:58:36,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-07 12:58:36,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-07 12:58:36,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-07 12:58:36,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-07 12:58:36,974 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2024-11-07 12:58:36,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2024-11-07 12:58:36,974 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2024-11-07 12:58:36,974 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2024-11-07 12:58:36,974 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2024-11-07 12:58:36,974 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2024-11-07 12:58:36,974 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-07 12:58:36,974 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-07 12:58:36,974 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-07 12:58:36,974 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-07 12:58:36,974 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-07 12:58:36,977 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-07 12:58:36,977 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-07 12:58:36,977 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-07 12:58:36,977 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2024-11-07 12:58:36,978 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2024-11-07 12:58:36,978 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2024-11-07 12:58:36,978 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2024-11-07 12:58:36,978 INFO L130 BoogieDeclarations]: Found specification of procedure usb_anchor_urb [2024-11-07 12:58:36,978 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_anchor_urb [2024-11-07 12:58:36,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-07 12:58:36,978 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2024-11-07 12:58:36,978 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2024-11-07 12:58:36,979 INFO L130 BoogieDeclarations]: Found specification of procedure esd_usb2_read_bulk_callback [2024-11-07 12:58:36,979 INFO L138 BoogieDeclarations]: Found implementation of procedure esd_usb2_read_bulk_callback [2024-11-07 12:58:36,979 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2024-11-07 12:58:36,979 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2024-11-07 12:58:36,979 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_warn [2024-11-07 12:58:36,979 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_warn [2024-11-07 12:58:36,979 INFO L130 BoogieDeclarations]: Found specification of procedure esd_usb2_send_msg [2024-11-07 12:58:36,979 INFO L138 BoogieDeclarations]: Found implementation of procedure esd_usb2_send_msg [2024-11-07 12:58:36,979 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2024-11-07 12:58:36,979 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2024-11-07 12:58:36,979 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2024-11-07 12:58:36,979 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2024-11-07 12:58:36,979 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2024-11-07 12:58:36,979 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2024-11-07 12:58:36,979 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unanchor_urb [2024-11-07 12:58:36,979 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unanchor_urb [2024-11-07 12:58:36,979 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2024-11-07 12:58:36,979 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2024-11-07 12:58:36,979 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2024-11-07 12:58:36,979 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2024-11-07 12:58:36,979 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2024-11-07 12:58:36,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2024-11-07 12:58:36,979 INFO L130 BoogieDeclarations]: Found specification of procedure close_candev [2024-11-07 12:58:36,979 INFO L138 BoogieDeclarations]: Found implementation of procedure close_candev [2024-11-07 12:58:36,980 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2024-11-07 12:58:36,980 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2024-11-07 12:58:36,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 12:58:36,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-07 12:58:36,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-07 12:58:36,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-07 12:58:36,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-07 12:58:36,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-07 12:58:36,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-07 12:58:36,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-07 12:58:36,980 INFO L130 BoogieDeclarations]: Found specification of procedure free_candev [2024-11-07 12:58:36,980 INFO L138 BoogieDeclarations]: Found implementation of procedure free_candev [2024-11-07 12:58:36,980 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2024-11-07 12:58:36,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2024-11-07 12:58:36,980 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2024-11-07 12:58:36,980 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2024-11-07 12:58:36,980 INFO L130 BoogieDeclarations]: Found specification of procedure esd_usb2_disconnect [2024-11-07 12:58:36,980 INFO L138 BoogieDeclarations]: Found implementation of procedure esd_usb2_disconnect [2024-11-07 12:58:36,980 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 12:58:36,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 12:58:37,527 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 12:58:37,530 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 12:58:37,616 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-07 12:58:37,867 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2024-11-07 12:58:45,784 INFO L? ?]: Removed 1051 outVars from TransFormulas that were not future-live. [2024-11-07 12:58:45,785 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 12:58:45,832 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 12:58:45,832 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-07 12:58:45,833 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:58:45 BoogieIcfgContainer [2024-11-07 12:58:45,833 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 12:58:45,835 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 12:58:45,835 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 12:58:45,840 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 12:58:45,840 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:58:34" (1/3) ... [2024-11-07 12:58:45,841 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d1faf3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:58:45, skipping insertion in model container [2024-11-07 12:58:45,841 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:36" (2/3) ... [2024-11-07 12:58:45,841 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d1faf3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:58:45, skipping insertion in model container [2024-11-07 12:58:45,842 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:58:45" (3/3) ... [2024-11-07 12:58:45,843 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--esd_usb2.ko-entry_point.cil.out.i [2024-11-07 12:58:45,857 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 12:58:45,857 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-07 12:58:45,925 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 12:58:45,939 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;@1015416, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 12:58:45,941 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-07 12:58:45,954 INFO L276 IsEmpty]: Start isEmpty. Operand has 847 states, 629 states have (on average 1.356120826709062) internal successors, (853), 655 states have internal predecessors, (853), 167 states have call successors, (167), 51 states have call predecessors, (167), 49 states have return successors, (158), 156 states have call predecessors, (158), 158 states have call successors, (158) [2024-11-07 12:58:45,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-07 12:58:45,963 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 12:58:45,964 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:58:45,964 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 12:58:45,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 12:58:45,970 INFO L85 PathProgramCache]: Analyzing trace with hash 569038334, now seen corresponding path program 1 times [2024-11-07 12:58:45,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 12:58:45,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148366500] [2024-11-07 12:58:45,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 12:58:45,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 12:58:49,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:58:50,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 12:58:50,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:58:50,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-07 12:58:50,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:58:50,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-07 12:58:50,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:58:50,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-07 12:58:50,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:58:50,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-07 12:58:50,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:58:50,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 12:58:50,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:58:50,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 12:58:50,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:58:50,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-07 12:58:50,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:58:50,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-07 12:58:50,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:58:50,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-07 12:58:50,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:58:50,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-07 12:58:50,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:58:50,443 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-07 12:58:50,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 12:58:50,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148366500] [2024-11-07 12:58:50,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148366500] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 12:58:50,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 12:58:50,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 12:58:50,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021527966] [2024-11-07 12:58:50,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 12:58:50,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 12:58:50,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 12:58:50,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 12:58:50,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 12:58:50,473 INFO L87 Difference]: Start difference. First operand has 847 states, 629 states have (on average 1.356120826709062) internal successors, (853), 655 states have internal predecessors, (853), 167 states have call successors, (167), 51 states have call predecessors, (167), 49 states have return successors, (158), 156 states have call predecessors, (158), 158 states have call successors, (158) Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-07 12:58:54,534 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 12:58:58,856 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-07 12:59:11,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 12:59:11,041 INFO L93 Difference]: Finished difference Result 2655 states and 3802 transitions. [2024-11-07 12:59:11,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 12:59:11,043 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 83 [2024-11-07 12:59:11,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 12:59:11,066 INFO L225 Difference]: With dead ends: 2655 [2024-11-07 12:59:11,067 INFO L226 Difference]: Without dead ends: 1785 [2024-11-07 12:59:11,079 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 12:59:11,083 INFO L432 NwaCegarLoop]: 1053 mSDtfsCounter, 1518 mSDsluCounter, 1441 mSDsCounter, 0 mSdLazyCounter, 886 mSolverCounterSat, 422 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1648 SdHoareTripleChecker+Valid, 2494 SdHoareTripleChecker+Invalid, 1310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 422 IncrementalHoareTripleChecker+Valid, 886 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.1s IncrementalHoareTripleChecker+Time [2024-11-07 12:59:11,083 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1648 Valid, 2494 Invalid, 1310 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [422 Valid, 886 Invalid, 2 Unknown, 0 Unchecked, 20.1s Time] [2024-11-07 12:59:11,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1785 states. [2024-11-07 12:59:11,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1785 to 1609. [2024-11-07 12:59:11,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1609 states, 1214 states have (on average 1.316309719934102) internal successors, (1598), 1240 states have internal predecessors, (1598), 298 states have call successors, (298), 97 states have call predecessors, (298), 96 states have return successors, (293), 289 states have call predecessors, (293), 293 states have call successors, (293) [2024-11-07 12:59:11,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1609 states to 1609 states and 2189 transitions. [2024-11-07 12:59:11,246 INFO L78 Accepts]: Start accepts. Automaton has 1609 states and 2189 transitions. Word has length 83 [2024-11-07 12:59:11,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 12:59:11,247 INFO L471 AbstractCegarLoop]: Abstraction has 1609 states and 2189 transitions. [2024-11-07 12:59:11,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-07 12:59:11,248 INFO L276 IsEmpty]: Start isEmpty. Operand 1609 states and 2189 transitions. [2024-11-07 12:59:11,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-07 12:59:11,252 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 12:59:11,252 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:59:11,253 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 12:59:11,253 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 12:59:11,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 12:59:11,253 INFO L85 PathProgramCache]: Analyzing trace with hash -1592493928, now seen corresponding path program 1 times [2024-11-07 12:59:11,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 12:59:11,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103843020] [2024-11-07 12:59:11,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 12:59:11,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 12:59:13,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:59:14,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 12:59:14,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:59:14,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-07 12:59:14,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:59:14,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-07 12:59:14,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:59:14,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-07 12:59:14,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:59:14,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-07 12:59:14,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:59:14,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 12:59:14,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:59:14,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 12:59:14,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:59:14,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-07 12:59:14,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:59:14,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-07 12:59:14,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:59:14,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-07 12:59:14,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:59:14,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-07 12:59:14,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:59:14,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-07 12:59:15,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:59:15,013 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-07 12:59:15,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 12:59:15,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103843020] [2024-11-07 12:59:15,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103843020] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 12:59:15,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 12:59:15,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 12:59:15,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932775521] [2024-11-07 12:59:15,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 12:59:15,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 12:59:15,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 12:59:15,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 12:59:15,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 12:59:15,019 INFO L87 Difference]: Start difference. First operand 1609 states and 2189 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-07 12:59:19,059 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 12:59:33,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 12:59:33,600 INFO L93 Difference]: Finished difference Result 5128 states and 7073 transitions. [2024-11-07 12:59:33,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 12:59:33,601 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 93 [2024-11-07 12:59:33,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 12:59:33,623 INFO L225 Difference]: With dead ends: 5128 [2024-11-07 12:59:33,623 INFO L226 Difference]: Without dead ends: 3544 [2024-11-07 12:59:33,630 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 12:59:33,631 INFO L432 NwaCegarLoop]: 1293 mSDtfsCounter, 1358 mSDsluCounter, 1501 mSDsCounter, 0 mSdLazyCounter, 1046 mSolverCounterSat, 345 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1482 SdHoareTripleChecker+Valid, 2794 SdHoareTripleChecker+Invalid, 1392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 345 IncrementalHoareTripleChecker+Valid, 1046 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.7s IncrementalHoareTripleChecker+Time [2024-11-07 12:59:33,631 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1482 Valid, 2794 Invalid, 1392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [345 Valid, 1046 Invalid, 1 Unknown, 0 Unchecked, 17.7s Time] [2024-11-07 12:59:33,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3544 states. [2024-11-07 12:59:33,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3544 to 3182. [2024-11-07 12:59:33,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3182 states, 2409 states have (on average 1.3163138231631382) internal successors, (3171), 2457 states have internal predecessors, (3171), 580 states have call successors, (580), 193 states have call predecessors, (580), 192 states have return successors, (585), 567 states have call predecessors, (585), 575 states have call successors, (585) [2024-11-07 12:59:33,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3182 states to 3182 states and 4336 transitions. [2024-11-07 12:59:33,814 INFO L78 Accepts]: Start accepts. Automaton has 3182 states and 4336 transitions. Word has length 93 [2024-11-07 12:59:33,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 12:59:33,814 INFO L471 AbstractCegarLoop]: Abstraction has 3182 states and 4336 transitions. [2024-11-07 12:59:33,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-07 12:59:33,815 INFO L276 IsEmpty]: Start isEmpty. Operand 3182 states and 4336 transitions. [2024-11-07 12:59:33,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-07 12:59:33,817 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 12:59:33,817 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:59:33,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 12:59:33,818 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 12:59:33,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 12:59:33,818 INFO L85 PathProgramCache]: Analyzing trace with hash -2123005374, now seen corresponding path program 1 times [2024-11-07 12:59:33,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 12:59:33,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111304156] [2024-11-07 12:59:33,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 12:59:33,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 12:59:35,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:59:37,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 12:59:37,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:59:37,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-07 12:59:37,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:59:37,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-07 12:59:37,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:59:37,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-07 12:59:37,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:59:37,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-07 12:59:37,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:59:37,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 12:59:37,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:59:37,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 12:59:37,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:59:37,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-07 12:59:37,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:59:37,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-07 12:59:37,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:59:37,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-07 12:59:37,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:59:37,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-07 12:59:37,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:59:37,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-07 12:59:37,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:59:37,147 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-07 12:59:37,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 12:59:37,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111304156] [2024-11-07 12:59:37,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111304156] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 12:59:37,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 12:59:37,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 12:59:37,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710291599] [2024-11-07 12:59:37,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 12:59:37,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 12:59:37,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 12:59:37,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 12:59:37,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 12:59:37,149 INFO L87 Difference]: Start difference. First operand 3182 states and 4336 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-07 12:59:41,191 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 12:59:48,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 12:59:48,727 INFO L93 Difference]: Finished difference Result 3536 states and 4900 transitions. [2024-11-07 12:59:48,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 12:59:48,728 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 94 [2024-11-07 12:59:48,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 12:59:48,753 INFO L225 Difference]: With dead ends: 3536 [2024-11-07 12:59:48,753 INFO L226 Difference]: Without dead ends: 3533 [2024-11-07 12:59:48,757 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 12:59:48,757 INFO L432 NwaCegarLoop]: 924 mSDtfsCounter, 1271 mSDsluCounter, 522 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 266 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1370 SdHoareTripleChecker+Valid, 1446 SdHoareTripleChecker+Invalid, 762 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 266 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2024-11-07 12:59:48,758 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1370 Valid, 1446 Invalid, 762 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [266 Valid, 495 Invalid, 1 Unknown, 0 Unchecked, 10.9s Time] [2024-11-07 12:59:48,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3533 states. [2024-11-07 12:59:48,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3533 to 3181. [2024-11-07 12:59:48,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3181 states, 2409 states have (on average 1.3158987131589872) internal successors, (3170), 2456 states have internal predecessors, (3170), 579 states have call successors, (579), 193 states have call predecessors, (579), 192 states have return successors, (585), 567 states have call predecessors, (585), 575 states have call successors, (585) [2024-11-07 12:59:48,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3181 states to 3181 states and 4334 transitions. [2024-11-07 12:59:48,925 INFO L78 Accepts]: Start accepts. Automaton has 3181 states and 4334 transitions. Word has length 94 [2024-11-07 12:59:48,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 12:59:48,926 INFO L471 AbstractCegarLoop]: Abstraction has 3181 states and 4334 transitions. [2024-11-07 12:59:48,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-07 12:59:48,928 INFO L276 IsEmpty]: Start isEmpty. Operand 3181 states and 4334 transitions. [2024-11-07 12:59:48,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-07 12:59:48,931 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 12:59:48,932 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:59:48,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 12:59:48,932 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 12:59:48,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 12:59:48,933 INFO L85 PathProgramCache]: Analyzing trace with hash -1388986149, now seen corresponding path program 1 times [2024-11-07 12:59:48,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 12:59:48,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750833155] [2024-11-07 12:59:48,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 12:59:48,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 12:59:50,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:59:51,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 12:59:51,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:59:51,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-07 12:59:51,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:59:51,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-07 12:59:51,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:59:51,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-07 12:59:51,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:59:51,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-07 12:59:51,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:59:51,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 12:59:51,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:59:51,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 12:59:51,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:59:51,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-07 12:59:51,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:59:51,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-07 12:59:51,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:59:51,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-07 12:59:51,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:59:51,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-07 12:59:51,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:59:51,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-07 12:59:51,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:59:51,484 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-07 12:59:51,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 12:59:51,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750833155] [2024-11-07 12:59:51,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750833155] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 12:59:51,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 12:59:51,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 12:59:51,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171155609] [2024-11-07 12:59:51,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 12:59:51,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 12:59:51,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 12:59:51,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 12:59:51,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 12:59:51,486 INFO L87 Difference]: Start difference. First operand 3181 states and 4334 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-07 12:59:55,528 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 []