./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--usb_8dev.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--usb_8dev.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', '83293f5c81ac30df7449dd9c03263a4edbba62be916a9a4fda92d2518792b8d4'] 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--usb_8dev.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 83293f5c81ac30df7449dd9c03263a4edbba62be916a9a4fda92d2518792b8d4 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 12:58:35,790 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 12:58:35,881 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-07 12:58:35,888 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 12:58:35,888 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 12:58:35,918 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 12:58:35,919 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 12:58:35,919 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 12:58:35,920 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 12:58:35,920 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 12:58:35,920 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 12:58:35,920 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 12:58:35,920 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 12:58:35,920 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 12:58:35,921 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 12:58:35,921 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 12:58:35,921 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 12:58:35,921 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 12:58:35,921 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 12:58:35,921 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 12:58:35,921 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 12:58:35,922 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 12:58:35,922 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 12:58:35,922 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 12:58:35,922 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 12:58:35,922 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 12:58:35,922 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 12:58:35,922 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 12:58:35,922 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 12:58:35,923 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 12:58:35,923 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 12:58:35,923 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 12:58:35,923 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 12:58:35,923 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 12:58:35,923 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 12:58:35,923 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 12:58:35,923 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 12:58:35,924 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 12:58:35,924 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 12:58:35,924 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 -> 83293f5c81ac30df7449dd9c03263a4edbba62be916a9a4fda92d2518792b8d4 [2024-11-07 12:58:36,224 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 12:58:36,238 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 12:58:36,240 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 12:58:36,243 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 12:58:36,244 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 12:58:36,245 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--usb_8dev.ko-entry_point.cil.out.i [2024-11-07 12:58:37,539 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 12:58:38,148 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 12:58:38,149 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--usb_8dev.ko-entry_point.cil.out.i [2024-11-07 12:58:38,200 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/cd4cd5845/0758c4deced0463cbf5057a8e9087fe1/FLAG4380e4003 [2024-11-07 12:58:38,223 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/cd4cd5845/0758c4deced0463cbf5057a8e9087fe1 [2024-11-07 12:58:38,228 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 12:58:38,229 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 12:58:38,230 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 12:58:38,231 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 12:58:38,236 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 12:58:38,237 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:58:38" (1/1) ... [2024-11-07 12:58:38,239 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d8aed12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:38, skipping insertion in model container [2024-11-07 12:58:38,239 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:58:38" (1/1) ... [2024-11-07 12:58:38,345 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 12:58:39,173 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--usb_8dev.ko-entry_point.cil.out.i[163669,163682] [2024-11-07 12:58:39,615 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 12:58:39,646 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 12:58:39,809 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bswapl %0": "=r" (val): "0" (val)); [5402] [2024-11-07 12:58:39,815 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"); [5440] [2024-11-07 12:58:39,816 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)); [5447] [2024-11-07 12:58:39,816 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"); [5455-5456] [2024-11-07 12:58:39,820 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)); [5484] [2024-11-07 12:58:39,820 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)); [5491] [2024-11-07 12:58:39,831 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--usb_8dev.ko-entry_point.cil.out.i[163669,163682] [2024-11-07 12:58:39,882 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/work/ldvuser/mutilin/launch/work/current--X--drivers--X--defaultlinux-3.12-rc1.tar.xz--X--144_2a--X--cpachecker/linux-3.12-rc1.tar.xz/csd_deg_dscv/6228/dscv_tempdir/dscv/ri/144_2a/drivers/net/can/usb/usb_8dev.o.c.prepared"), "i" (621), "i" (12UL)); [6324-6325] [2024-11-07 12:58:39,962 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 12:58:40,036 INFO L204 MainTranslator]: Completed translation [2024-11-07 12:58:40,037 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:40 WrapperNode [2024-11-07 12:58:40,037 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 12:58:40,039 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 12:58:40,040 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 12:58:40,040 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 12:58:40,046 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:40" (1/1) ... [2024-11-07 12:58:40,106 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:40" (1/1) ... [2024-11-07 12:58:40,210 INFO L138 Inliner]: procedures = 174, calls = 830, calls flagged for inlining = 87, calls inlined = 87, statements flattened = 2654 [2024-11-07 12:58:40,211 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 12:58:40,212 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 12:58:40,212 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 12:58:40,212 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 12:58:40,221 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:40" (1/1) ... [2024-11-07 12:58:40,222 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:40" (1/1) ... [2024-11-07 12:58:40,239 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:40" (1/1) ... [2024-11-07 12:58:40,573 INFO L175 MemorySlicer]: Split 464 memory accesses to 8 slices as follows [341, 2, 31, 1, 5, 9, 44, 31]. 73 percent of accesses are in the largest equivalence class. The 28 initializations are split as follows [26, 2, 0, 0, 0, 0, 0, 0]. The 249 writes are split as follows [186, 0, 0, 0, 1, 0, 44, 18]. [2024-11-07 12:58:40,573 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:40" (1/1) ... [2024-11-07 12:58:40,573 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:40" (1/1) ... [2024-11-07 12:58:40,664 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:40" (1/1) ... [2024-11-07 12:58:40,687 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:40" (1/1) ... [2024-11-07 12:58:40,711 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:40" (1/1) ... [2024-11-07 12:58:40,726 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:40" (1/1) ... [2024-11-07 12:58:40,757 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 12:58:40,758 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 12:58:40,759 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 12:58:40,759 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 12:58:40,760 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:40" (1/1) ... [2024-11-07 12:58:40,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 12:58:40,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 12:58:40,795 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 12:58:40,801 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 12:58:40,822 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2024-11-07 12:58:40,822 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2024-11-07 12:58:40,823 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2024-11-07 12:58:40,823 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2024-11-07 12:58:40,823 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_2 [2024-11-07 12:58:40,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_2 [2024-11-07 12:58:40,823 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_15 [2024-11-07 12:58:40,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_15 [2024-11-07 12:58:40,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-07 12:58:40,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-07 12:58:40,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-07 12:58:40,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-07 12:58:40,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-07 12:58:40,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-07 12:58:40,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-07 12:58:40,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-07 12:58:40,824 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_3 [2024-11-07 12:58:40,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_3 [2024-11-07 12:58:40,825 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2024-11-07 12:58:40,825 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2024-11-07 12:58:40,825 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2024-11-07 12:58:40,825 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2024-11-07 12:58:40,825 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2024-11-07 12:58:40,826 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2024-11-07 12:58:40,826 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2024-11-07 12:58:40,826 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2024-11-07 12:58:40,826 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2024-11-07 12:58:40,826 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2024-11-07 12:58:40,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-07 12:58:40,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-07 12:58:40,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-07 12:58:40,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-07 12:58:40,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-07 12:58:40,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-07 12:58:40,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-07 12:58:40,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-07 12:58:40,828 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-07 12:58:40,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-07 12:58:40,828 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-07 12:58:40,828 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-07 12:58:40,828 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-07 12:58:40,828 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-07 12:58:40,828 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-07 12:58:40,828 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-07 12:58:40,828 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-07 12:58:40,828 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-07 12:58:40,828 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2024-11-07 12:58:40,828 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2024-11-07 12:58:40,828 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_present [2024-11-07 12:58:40,828 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_present [2024-11-07 12:58:40,828 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2024-11-07 12:58:40,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2024-11-07 12:58:40,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#0 [2024-11-07 12:58:40,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#1 [2024-11-07 12:58:40,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#2 [2024-11-07 12:58:40,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#3 [2024-11-07 12:58:40,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#4 [2024-11-07 12:58:40,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#5 [2024-11-07 12:58:40,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#6 [2024-11-07 12:58:40,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#7 [2024-11-07 12:58:40,829 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#0 [2024-11-07 12:58:40,829 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#1 [2024-11-07 12:58:40,829 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#2 [2024-11-07 12:58:40,829 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#3 [2024-11-07 12:58:40,829 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#4 [2024-11-07 12:58:40,831 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#5 [2024-11-07 12:58:40,831 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#6 [2024-11-07 12:58:40,831 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#7 [2024-11-07 12:58:40,831 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2024-11-07 12:58:40,831 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2024-11-07 12:58:40,831 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-07 12:58:40,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-07 12:58:40,832 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2024-11-07 12:58:40,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2024-11-07 12:58:40,832 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_read_bulk_callback [2024-11-07 12:58:40,832 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_read_bulk_callback [2024-11-07 12:58:40,832 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_anchored_urbs [2024-11-07 12:58:40,832 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_anchored_urbs [2024-11-07 12:58:40,832 INFO L130 BoogieDeclarations]: Found specification of procedure init_usb_anchor [2024-11-07 12:58:40,832 INFO L138 BoogieDeclarations]: Found implementation of procedure init_usb_anchor [2024-11-07 12:58:40,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-07 12:58:40,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-07 12:58:40,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-07 12:58:40,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-07 12:58:40,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-07 12:58:40,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-07 12:58:40,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-07 12:58:40,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-07 12:58:40,832 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-07 12:58:40,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-07 12:58:40,833 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-07 12:58:40,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-07 12:58:40,833 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-07 12:58:40,833 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-07 12:58:40,834 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-07 12:58:40,834 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2024-11-07 12:58:40,834 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2024-11-07 12:58:40,834 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2024-11-07 12:58:40,834 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#6 [2024-11-07 12:58:40,834 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#7 [2024-11-07 12:58:40,834 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-07 12:58:40,834 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-07 12:58:40,834 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-07 12:58:40,834 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2024-11-07 12:58:40,834 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2024-11-07 12:58:40,834 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2024-11-07 12:58:40,835 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#6 [2024-11-07 12:58:40,835 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#7 [2024-11-07 12:58:40,835 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-07 12:58:40,835 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-07 12:58:40,835 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2024-11-07 12:58:40,835 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2024-11-07 12:58:40,835 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-07 12:58:40,835 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2024-11-07 12:58:40,835 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2024-11-07 12:58:40,835 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2024-11-07 12:58:40,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2024-11-07 12:58:40,835 INFO L130 BoogieDeclarations]: Found specification of procedure unlink_all_urbs [2024-11-07 12:58:40,835 INFO L138 BoogieDeclarations]: Found implementation of procedure unlink_all_urbs [2024-11-07 12:58:40,835 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 12:58:40,835 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2024-11-07 12:58:40,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2024-11-07 12:58:40,835 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-07 12:58:40,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-07 12:58:40,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-07 12:58:40,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-07 12:58:40,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-07 12:58:40,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-07 12:58:40,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-07 12:58:40,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-07 12:58:40,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-07 12:58:40,835 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2024-11-07 12:58:40,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2024-11-07 12:58:40,836 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2024-11-07 12:58:40,836 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2024-11-07 12:58:40,836 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2024-11-07 12:58:40,836 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2024-11-07 12:58:40,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-07 12:58:40,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-07 12:58:40,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-07 12:58:40,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-07 12:58:40,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-07 12:58:40,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-07 12:58:40,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-07 12:58:40,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-07 12:58:40,836 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2024-11-07 12:58:40,836 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2024-11-07 12:58:40,836 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2024-11-07 12:58:40,836 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2024-11-07 12:58:40,836 INFO L130 BoogieDeclarations]: Found specification of procedure usb_anchor_urb [2024-11-07 12:58:40,836 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_anchor_urb [2024-11-07 12:58:40,836 INFO L130 BoogieDeclarations]: Found specification of procedure can_led_event [2024-11-07 12:58:40,836 INFO L138 BoogieDeclarations]: Found implementation of procedure can_led_event [2024-11-07 12:58:40,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-07 12:58:40,836 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_disconnect [2024-11-07 12:58:40,836 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_disconnect [2024-11-07 12:58:40,836 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_warn [2024-11-07 12:58:40,836 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_warn [2024-11-07 12:58:40,837 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2024-11-07 12:58:40,837 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2024-11-07 12:58:40,837 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2024-11-07 12:58:40,837 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2024-11-07 12:58:40,837 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unanchor_urb [2024-11-07 12:58:40,837 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unanchor_urb [2024-11-07 12:58:40,837 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2024-11-07 12:58:40,837 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2024-11-07 12:58:40,837 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2024-11-07 12:58:40,837 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2024-11-07 12:58:40,837 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2024-11-07 12:58:40,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2024-11-07 12:58:40,840 INFO L130 BoogieDeclarations]: Found specification of procedure close_candev [2024-11-07 12:58:40,841 INFO L138 BoogieDeclarations]: Found implementation of procedure close_candev [2024-11-07 12:58:40,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 12:58:40,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-07 12:58:40,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-07 12:58:40,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-07 12:58:40,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-07 12:58:40,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-07 12:58:40,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-07 12:58:40,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-07 12:58:40,843 INFO L130 BoogieDeclarations]: Found specification of procedure free_candev [2024-11-07 12:58:40,843 INFO L138 BoogieDeclarations]: Found implementation of procedure free_candev [2024-11-07 12:58:40,843 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2024-11-07 12:58:40,843 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2024-11-07 12:58:40,843 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2024-11-07 12:58:40,843 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2024-11-07 12:58:40,843 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2024-11-07 12:58:40,843 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2024-11-07 12:58:40,843 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2024-11-07 12:58:40,843 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2024-11-07 12:58:40,843 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2024-11-07 12:58:40,843 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2024-11-07 12:58:40,843 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_send_cmd [2024-11-07 12:58:40,843 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_send_cmd [2024-11-07 12:58:40,843 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2024-11-07 12:58:40,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2024-11-07 12:58:40,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 12:58:40,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 12:58:40,843 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_cmd_open [2024-11-07 12:58:40,844 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_cmd_open [2024-11-07 12:58:41,397 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 12:58:41,399 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 12:58:41,492 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-07 12:58:42,479 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2024-11-07 12:58:51,335 INFO L? ?]: Removed 1214 outVars from TransFormulas that were not future-live. [2024-11-07 12:58:51,335 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 12:58:51,361 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 12:58:51,361 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-07 12:58:51,361 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:58:51 BoogieIcfgContainer [2024-11-07 12:58:51,362 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 12:58:51,366 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 12:58:51,366 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 12:58:51,370 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 12:58:51,371 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:58:38" (1/3) ... [2024-11-07 12:58:51,372 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d861e00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:58:51, skipping insertion in model container [2024-11-07 12:58:51,372 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:40" (2/3) ... [2024-11-07 12:58:51,372 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d861e00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:58:51, skipping insertion in model container [2024-11-07 12:58:51,372 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:58:51" (3/3) ... [2024-11-07 12:58:51,373 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--usb_8dev.ko-entry_point.cil.out.i [2024-11-07 12:58:51,386 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 12:58:51,386 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-07 12:58:51,463 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 12:58:51,475 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;@13055649, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 12:58:51,476 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-07 12:58:51,485 INFO L276 IsEmpty]: Start isEmpty. Operand has 813 states, 611 states have (on average 1.3453355155482816) internal successors, (822), 631 states have internal predecessors, (822), 155 states have call successors, (155), 47 states have call predecessors, (155), 45 states have return successors, (149), 148 states have call predecessors, (149), 149 states have call successors, (149) [2024-11-07 12:58:51,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-07 12:58:51,492 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 12:58:51,493 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 12:58:51,493 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 12:58:51,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 12:58:51,497 INFO L85 PathProgramCache]: Analyzing trace with hash -864942331, now seen corresponding path program 1 times [2024-11-07 12:58:51,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 12:58:51,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648994078] [2024-11-07 12:58:51,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 12:58:51,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 12:58:53,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:58:53,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 12:58:53,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:58:53,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-07 12:58:53,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:58:53,993 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-07 12:58:53,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 12:58:53,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648994078] [2024-11-07 12:58:53,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648994078] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 12:58:53,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 12:58:53,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 12:58:53,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748667435] [2024-11-07 12:58:53,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 12:58:54,000 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 12:58:54,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 12:58:54,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 12:58:54,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 12:58:54,023 INFO L87 Difference]: Start difference. First operand has 813 states, 611 states have (on average 1.3453355155482816) internal successors, (822), 631 states have internal predecessors, (822), 155 states have call successors, (155), 47 states have call predecessors, (155), 45 states have return successors, (149), 148 states have call predecessors, (149), 149 states have call successors, (149) Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-07 12:58:58,064 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 12:59:02,166 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-07 12:59:08,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 12:59:08,891 INFO L93 Difference]: Finished difference Result 2517 states and 3589 transitions. [2024-11-07 12:59:08,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 12:59:08,893 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 28 [2024-11-07 12:59:08,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 12:59:08,916 INFO L225 Difference]: With dead ends: 2517 [2024-11-07 12:59:08,916 INFO L226 Difference]: Without dead ends: 1685 [2024-11-07 12:59:08,924 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 12:59:08,926 INFO L432 NwaCegarLoop]: 915 mSDtfsCounter, 1380 mSDsluCounter, 1334 mSDsCounter, 0 mSdLazyCounter, 747 mSolverCounterSat, 416 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1510 SdHoareTripleChecker+Valid, 2249 SdHoareTripleChecker+Invalid, 1165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 416 IncrementalHoareTripleChecker+Valid, 747 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.5s IncrementalHoareTripleChecker+Time [2024-11-07 12:59:08,927 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1510 Valid, 2249 Invalid, 1165 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [416 Valid, 747 Invalid, 2 Unknown, 0 Unchecked, 14.5s Time] [2024-11-07 12:59:08,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1685 states. [2024-11-07 12:59:09,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1685 to 1563. [2024-11-07 12:59:09,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1563 states, 1185 states have (on average 1.2953586497890295) internal successors, (1535), 1205 states have internal predecessors, (1535), 289 states have call successors, (289), 89 states have call predecessors, (289), 88 states have return successors, (284), 282 states have call predecessors, (284), 284 states have call successors, (284) [2024-11-07 12:59:09,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1563 states to 1563 states and 2108 transitions. [2024-11-07 12:59:09,109 INFO L78 Accepts]: Start accepts. Automaton has 1563 states and 2108 transitions. Word has length 28 [2024-11-07 12:59:09,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 12:59:09,109 INFO L471 AbstractCegarLoop]: Abstraction has 1563 states and 2108 transitions. [2024-11-07 12:59:09,109 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-07 12:59:09,110 INFO L276 IsEmpty]: Start isEmpty. Operand 1563 states and 2108 transitions. [2024-11-07 12:59:09,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-07 12:59:09,112 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 12:59:09,112 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 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 12:59:09,112 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 12:59:09,112 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 12:59:09,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 12:59:09,113 INFO L85 PathProgramCache]: Analyzing trace with hash -839642905, now seen corresponding path program 1 times [2024-11-07 12:59:09,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 12:59:09,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286493290] [2024-11-07 12:59:09,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 12:59:09,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 12:59:10,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:59:11,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 12:59:11,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:59:11,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-07 12:59:11,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:59:11,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-07 12:59:11,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:59:11,141 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-07 12:59:11,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 12:59:11,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286493290] [2024-11-07 12:59:11,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286493290] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 12:59:11,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 12:59:11,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 12:59:11,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273552641] [2024-11-07 12:59:11,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 12:59:11,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 12:59:11,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 12:59:11,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 12:59:11,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 12:59:11,145 INFO L87 Difference]: Start difference. First operand 1563 states and 2108 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-07 12:59:15,187 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 12:59:22,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 12:59:22,163 INFO L93 Difference]: Finished difference Result 4918 states and 6751 transitions. [2024-11-07 12:59:22,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 12:59:22,164 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 38 [2024-11-07 12:59:22,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 12:59:22,189 INFO L225 Difference]: With dead ends: 4918 [2024-11-07 12:59:22,189 INFO L226 Difference]: Without dead ends: 3362 [2024-11-07 12:59:22,196 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 12:59:22,197 INFO L432 NwaCegarLoop]: 1371 mSDtfsCounter, 1272 mSDsluCounter, 1573 mSDsCounter, 0 mSdLazyCounter, 912 mSolverCounterSat, 322 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1395 SdHoareTripleChecker+Valid, 2944 SdHoareTripleChecker+Invalid, 1235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 322 IncrementalHoareTripleChecker+Valid, 912 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2024-11-07 12:59:22,197 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1395 Valid, 2944 Invalid, 1235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [322 Valid, 912 Invalid, 1 Unknown, 0 Unchecked, 10.6s Time] [2024-11-07 12:59:22,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3362 states. [2024-11-07 12:59:22,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3362 to 3108. [2024-11-07 12:59:22,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3108 states, 2360 states have (on average 1.2940677966101695) internal successors, (3054), 2396 states have internal predecessors, (3054), 571 states have call successors, (571), 177 states have call predecessors, (571), 176 states have return successors, (580), 562 states have call predecessors, (580), 566 states have call successors, (580) [2024-11-07 12:59:22,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3108 states to 3108 states and 4205 transitions. [2024-11-07 12:59:22,347 INFO L78 Accepts]: Start accepts. Automaton has 3108 states and 4205 transitions. Word has length 38 [2024-11-07 12:59:22,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 12:59:22,348 INFO L471 AbstractCegarLoop]: Abstraction has 3108 states and 4205 transitions. [2024-11-07 12:59:22,348 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-07 12:59:22,348 INFO L276 IsEmpty]: Start isEmpty. Operand 3108 states and 4205 transitions. [2024-11-07 12:59:22,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-07 12:59:22,350 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 12:59:22,350 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 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 12:59:22,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 12:59:22,350 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 12:59:22,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 12:59:22,351 INFO L85 PathProgramCache]: Analyzing trace with hash -259542901, now seen corresponding path program 1 times [2024-11-07 12:59:22,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 12:59:22,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859062781] [2024-11-07 12:59:22,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 12:59:22,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 12:59:23,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:59:23,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 12:59:23,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:59:23,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-07 12:59:23,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:59:23,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-07 12:59:23,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:59:23,970 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-07 12:59:23,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 12:59:23,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859062781] [2024-11-07 12:59:23,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859062781] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 12:59:23,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 12:59:23,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 12:59:23,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425801125] [2024-11-07 12:59:23,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 12:59:23,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 12:59:23,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 12:59:23,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 12:59:23,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 12:59:23,973 INFO L87 Difference]: Start difference. First operand 3108 states and 4205 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-07 12:59:28,000 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 12:59:33,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 12:59:33,180 INFO L93 Difference]: Finished difference Result 3354 states and 4628 transitions. [2024-11-07 12:59:33,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 12:59:33,181 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 39 [2024-11-07 12:59:33,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 12:59:33,204 INFO L225 Difference]: With dead ends: 3354 [2024-11-07 12:59:33,204 INFO L226 Difference]: Without dead ends: 3351 [2024-11-07 12:59:33,207 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 12:59:33,207 INFO L432 NwaCegarLoop]: 888 mSDtfsCounter, 1179 mSDsluCounter, 517 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 248 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1286 SdHoareTripleChecker+Valid, 1405 SdHoareTripleChecker+Invalid, 680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 248 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2024-11-07 12:59:33,208 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1286 Valid, 1405 Invalid, 680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [248 Valid, 431 Invalid, 1 Unknown, 0 Unchecked, 8.9s Time] [2024-11-07 12:59:33,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3351 states. [2024-11-07 12:59:33,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3351 to 3107. [2024-11-07 12:59:33,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3107 states, 2360 states have (on average 1.2936440677966101) internal successors, (3053), 2395 states have internal predecessors, (3053), 570 states have call successors, (570), 177 states have call predecessors, (570), 176 states have return successors, (580), 562 states have call predecessors, (580), 566 states have call successors, (580) [2024-11-07 12:59:33,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3107 states to 3107 states and 4203 transitions. [2024-11-07 12:59:33,368 INFO L78 Accepts]: Start accepts. Automaton has 3107 states and 4203 transitions. Word has length 39 [2024-11-07 12:59:33,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 12:59:33,369 INFO L471 AbstractCegarLoop]: Abstraction has 3107 states and 4203 transitions. [2024-11-07 12:59:33,369 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-07 12:59:33,369 INFO L276 IsEmpty]: Start isEmpty. Operand 3107 states and 4203 transitions. [2024-11-07 12:59:33,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-07 12:59:33,372 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 12:59:33,373 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 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 12:59:33,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 12:59:33,373 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 12:59:33,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 12:59:33,374 INFO L85 PathProgramCache]: Analyzing trace with hash 543692906, now seen corresponding path program 1 times [2024-11-07 12:59:33,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 12:59:33,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687950977] [2024-11-07 12:59:33,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 12:59:33,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 12:59:34,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:59:34,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 12:59:34,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:59:34,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-07 12:59:34,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:59:34,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-07 12:59:34,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:59:34,900 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-07 12:59:34,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 12:59:34,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687950977] [2024-11-07 12:59:34,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687950977] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 12:59:34,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 12:59:34,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 12:59:34,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241536178] [2024-11-07 12:59:34,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 12:59:34,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 12:59:34,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 12:59:34,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 12:59:34,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 12:59:34,906 INFO L87 Difference]: Start difference. First operand 3107 states and 4203 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-07 12:59:38,927 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 12:59:43,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 12:59:43,978 INFO L93 Difference]: Finished difference Result 3353 states and 4626 transitions. [2024-11-07 12:59:43,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 12:59:43,981 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 40 [2024-11-07 12:59:43,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 12:59:44,003 INFO L225 Difference]: With dead ends: 3353 [2024-11-07 12:59:44,003 INFO L226 Difference]: Without dead ends: 3350 [2024-11-07 12:59:44,006 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 12:59:44,008 INFO L432 NwaCegarLoop]: 888 mSDtfsCounter, 1175 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 246 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1283 SdHoareTripleChecker+Valid, 1404 SdHoareTripleChecker+Invalid, 678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 246 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2024-11-07 12:59:44,009 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1283 Valid, 1404 Invalid, 678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [246 Valid, 431 Invalid, 1 Unknown, 0 Unchecked, 8.8s Time] [2024-11-07 12:59:44,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3350 states. [2024-11-07 12:59:44,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3350 to 3106. [2024-11-07 12:59:44,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3106 states, 2360 states have (on average 1.2932203389830508) internal successors, (3052), 2394 states have internal predecessors, (3052), 569 states have call successors, (569), 177 states have call predecessors, (569), 176 states have return successors, (580), 562 states have call predecessors, (580), 566 states have call successors, (580) [2024-11-07 12:59:44,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3106 states to 3106 states and 4201 transitions. [2024-11-07 12:59:44,174 INFO L78 Accepts]: Start accepts. Automaton has 3106 states and 4201 transitions. Word has length 40 [2024-11-07 12:59:44,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 12:59:44,177 INFO L471 AbstractCegarLoop]: Abstraction has 3106 states and 4201 transitions. [2024-11-07 12:59:44,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-07 12:59:44,177 INFO L276 IsEmpty]: Start isEmpty. Operand 3106 states and 4201 transitions. [2024-11-07 12:59:44,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-07 12:59:44,180 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 12:59:44,180 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:59:44,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 12:59:44,181 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 12:59:44,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 12:59:44,181 INFO L85 PathProgramCache]: Analyzing trace with hash -325795986, now seen corresponding path program 1 times [2024-11-07 12:59:44,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 12:59:44,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90959527] [2024-11-07 12:59:44,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 12:59:44,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 12:59:45,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:59:45,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 12:59:45,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:59:45,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-07 12:59:45,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:59:45,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-07 12:59:45,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:59:45,807 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-07 12:59:45,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 12:59:45,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90959527] [2024-11-07 12:59:45,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90959527] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 12:59:45,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 12:59:45,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 12:59:45,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524379187] [2024-11-07 12:59:45,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 12:59:45,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 12:59:45,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 12:59:45,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 12:59:45,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 12:59:45,811 INFO L87 Difference]: Start difference. First operand 3106 states and 4201 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-07 12:59:49,837 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 12:59:54,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 12:59:54,887 INFO L93 Difference]: Finished difference Result 3352 states and 4624 transitions. [2024-11-07 12:59:54,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 12:59:54,888 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 41 [2024-11-07 12:59:54,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 12:59:54,906 INFO L225 Difference]: With dead ends: 3352 [2024-11-07 12:59:54,906 INFO L226 Difference]: Without dead ends: 3349 [2024-11-07 12:59:54,909 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 12:59:54,911 INFO L432 NwaCegarLoop]: 884 mSDtfsCounter, 1173 mSDsluCounter, 515 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 246 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1280 SdHoareTripleChecker+Valid, 1399 SdHoareTripleChecker+Invalid, 678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 246 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2024-11-07 12:59:54,911 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1280 Valid, 1399 Invalid, 678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [246 Valid, 431 Invalid, 1 Unknown, 0 Unchecked, 8.8s Time] [2024-11-07 12:59:54,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3349 states. [2024-11-07 12:59:55,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3349 to 3105. [2024-11-07 12:59:55,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3105 states, 2360 states have (on average 1.2927966101694914) internal successors, (3051), 2393 states have internal predecessors, (3051), 568 states have call successors, (568), 177 states have call predecessors, (568), 176 states have return successors, (580), 562 states have call predecessors, (580), 566 states have call successors, (580) [2024-11-07 12:59:55,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3105 states to 3105 states and 4199 transitions. [2024-11-07 12:59:55,065 INFO L78 Accepts]: Start accepts. Automaton has 3105 states and 4199 transitions. Word has length 41 [2024-11-07 12:59:55,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 12:59:55,065 INFO L471 AbstractCegarLoop]: Abstraction has 3105 states and 4199 transitions. [2024-11-07 12:59:55,066 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-07 12:59:55,066 INFO L276 IsEmpty]: Start isEmpty. Operand 3105 states and 4199 transitions. [2024-11-07 12:59:55,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-07 12:59:55,067 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 12:59:55,067 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:59:55,067 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 12:59:55,067 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 12:59:55,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 12:59:55,068 INFO L85 PathProgramCache]: Analyzing trace with hash -1510142995, now seen corresponding path program 1 times [2024-11-07 12:59:55,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 12:59:55,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415107093] [2024-11-07 12:59:55,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 12:59:55,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 12:59:56,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:59:56,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 12:59:56,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:59:56,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-07 12:59:56,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:59:56,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-07 12:59:56,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:59:56,347 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-07 12:59:56,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 12:59:56,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415107093] [2024-11-07 12:59:56,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415107093] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 12:59:56,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 12:59:56,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 12:59:56,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774353847] [2024-11-07 12:59:56,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 12:59:56,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 12:59:56,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 12:59:56,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 12:59:56,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 12:59:56,349 INFO L87 Difference]: Start difference. First operand 3105 states and 4199 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-07 13:00:00,373 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 []